SBAS756A Data sheet

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)⁽¹⁾

		MIN	MAX	UNIT
Supply voltage range	AVDD3V	–0.3	3.6	V
	AVDD	–0.3	2.1
	DVDD	–0.3	2.1
	IOVDD	–0.2	1.4
Voltage between AGND and DGND		–0.3	0.3	V
Voltage applied to input pins	INAP, INBP, INAM, INBM	–0.3	3	V
	CLKINP, CLKINM	–0.3	AVDD + 0.3
	SYSREFP, SYSREFM	–0.3	AVDD + 0.3
	SCLK, SEN, SDIN, RESET, SYNC, PDN	–0.2	2.1
Storage temperature, T_stg		–65	150	°C

(1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

7.2 ESD Ratings

			VALUE	UNIT
V_(ESD)	Electrostatic discharge	Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001⁽¹⁾	±1000	V
V_(ESD)	Electrostatic discharge	Charged-device model (CDM), per JEDEC specification JESD22-C101⁽²⁾	±500	V

(1) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process.

(2) JEDEC document JEP157 states that 250-V HBM allows safe manufacturing with a standard ESD control process.

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)⁽²⁾⁽³⁾

			MIN	NOM	MAX	UNIT
Supply voltage range	AVDD3V		2.85	3.0	3.6	V
	AVDD		1.8	1.9	2.0
	DVDD		1.7	1.9	2.0
	IOVDD		1.1	1.15	1.2
Analog inputs	Differential input voltage range			1.9		V_PP
	Input common-mode voltage		2.0			V
	Maximum analog input frequency for a 1.9-V_PP input amplitude⁽⁴⁾⁽⁵⁾			400		MHz
Clock inputs	Input clock frequency, device clock frequency		300⁽⁶⁾		625	MHz
	Input clock amplitude differential (V_CLKP – V_CLKM)	Sine wave, ac-coupled	0.75	1.5		V_PP
		LVPECL, ac-coupled	0.8	1.6
		LVDS, ac-coupled		0.7
	Input device clock duty cycle		45%	50%	55%
Temperature	Operating free-air, T_A		–40		85	ºC
Temperature	Operating junction, T_J			105⁽¹⁾	125	ºC

(1) Prolonged use above the nominal junction temperature can increase the device failure-in-time (FIT) rate.

(2) SYSREF must be applied for the device to initialize; see the SYSREF Signal section for details.

(3) After power-up, always use a hardware reset to reset the device for the first time; see Table 66 for details.

(4) Operating 0.5 dB below the maximum-supported amplitude is recommended to accommodate gain mismatch in interleaving ADCs.

(5) At high frequencies, the maximum supported input amplitude reduces; see Figure 36 for details.

(6) See Table 9.

7.4 Thermal Information

THERMAL METRIC⁽¹⁾		ADS54J42	UNIT
		RMP (VQFNP)
		72 PINS
R_θJA	Junction-to-ambient thermal resistance	22.3	°C/W
R_θJC(top)	Junction-to-case (top) thermal resistance	5.1	°C/W
R_θJB	Junction-to-board thermal resistance	2.4	°C/W
ψ_JT	Junction-to-top characterization parameter	0.1	°C/W
ψ_JB	Junction-to-board characterization parameter	2.3	°C/W
R_θJC(bot)	Junction-to-case (bottom) thermal resistance	0.4	°C/W

(1) For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

7.5 Electrical Characteristics

typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = 85°C, ADC sampling rate = 625 MSPS, 50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, and –1-dBFS differential input (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNIT
GENERAL
	ADC sampling rate				625	MSPS
	Resolution		14			Bits
POWER SUPPLIES
AVDD3V	3.0-V analog supply		2.85	3.0	3.6	V
AVDD	1.9-V analog supply		1.8	1.9	2.0	V
DVDD	1.9-V digital supply		1.7	1.9	2.0	V
IOVDD	1.15-V SERDES supply		1.1	1.15	1.2	V
I_AVDD3V	3.0-V analog supply current	V_IN = full-scale on both channels		247	310	mA
I_AVDD	1.9-V analog supply current	V_IN = full-scale on both channels		260	410	mA
I_DVDD	1.9-V digital supply current	Eight lanes active (LMFS = 8224)		137	210	mA
I_IOVDD	1.15-V SERDES supply current	Eight lanes active (LMFS = 8224)		382	720	mA
P_dis	Total power dissipation	Eight lanes active (LMFS = 8224)		1.94	2.68	W
I_DVDD	1.9-V digital supply current	Four lanes active (LMFS = 4222), 2X decimation		130		mA
I_IOVDD	1.15-V SERDES supply current	Four lanes active (LMFS = 4222), 2X decimation		404		mA
P_dis	Total power dissipation	Four lanes active (LMFS = 4222), 2X decimation		1.95		W
I_DVDD	1.9-V digital supply current	Two lanes active (LMFS = 2221), 4X decimation		129		mA
I_IOVDD	1.15-V SERDES supply current	Two lanes active (LMFS = 2221), 4X decimation		400		mA
P_dis⁽¹⁾	Total power dissipation	Two lanes active (LMFS = 2221), 4X decimation		1.94		W
	Global power-down power dissipation			285	315	mW
ANALOG INPUTS (INAP, INAM, INBP, INBM)
	Differential input full-scale voltage			1.9		V_PP
V_IC	Common-mode input voltage		2.0			V
R_IN	Differential input resistance	At 170-MHz input frequency		0.6		kΩ
C_IN	Differential input capacitance	At 170-MHz input frequency		4.7		pF
	Analog input bandwidth (3 dB)	50-Ω source driving ADC inputs terminated with 50 Ω		1.2		GHz
CLOCK INPUT (CLKINP, CLKINM)
	Internal clock biasing	CLKINP and CLKINM are connected to internal biasing voltage through 400 Ω		1.15		V

(1) See the Power-Down Mode section for details.

7.6 AC Characteristics

typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = 85°C, ADC sampling rate = 625 MSPS, 50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, –1-dBFS differential input amplitude, and 0-dB digital gain (unless otherwise noted)

PARAMETER		TEST CONDITIONS		MIN	TYP	UNIT
SNR	Signal-to-noise ratio	f_IN = 10 MHz, A_IN = –1 dBFS			71.8	dBFS
		f_IN = 100 MHz, A_IN = –1 dBFS			71.5
		f_IN = 170 MHz, A_IN = –1 dBFS		67.2	71
		f_IN = 230 MHz, A_IN = –1 dBFS			70.3
		f_IN = 270 MHz, A_IN = –1 dBFS			69.9
		f_IN = 300 MHz, A_IN = –1 dBFS			69.5
		f_IN = 370 MHz, A_IN = –1 dBFS			68.7
		f_IN = 470 MHz, A_IN = –3 dBFS			68.7
		f_IN = 720 MHz	A_IN = –6 dBFS		67.9
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		62.7
NSD	Noise spectral density	f_IN = 10 MHz, A_IN = –1 dBFS			156.7	dBFS/Hz
		f_IN = 100 MHz, A_IN = –1 dBFS			156.4
		f_IN = 170 MHz, A_IN = –1 dBFS		154.2	155.9
		f_IN = 230 MHz, A_IN = –1 dBFS			155.2
		f_IN = 270 MHz, A_IN = –1 dBFS			154.8
		f_IN = 300 MHz, A_IN = –1 dBFS			154.4
		f_IN = 370 MHz, A_IN = –1 dBFS			153.6
		f_IN = 470 MHz, A_IN = –3 dBFS			153.6
		f_IN = 720 MHz	A_IN = –6 dBFS		152.8
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		147.6
SINAD	Signal-to-noise and distortion ratio	f_IN = 10 MHz, A_IN = –1 dBFS			71.7	dBFS
		f_IN = 100 MHz, A_IN = –1 dBFS			71.4
		f_IN = 170 MHz, A_IN = –1 dBFS		67	70.8
		f_IN = 230 MHz, A_IN = –1 dBFS			69.8
		f_IN = 270 MHz, A_IN = –1 dBFS			69.7
		f_IN = 300 MHz, A_IN = –1 dBFS			69.1
		f_IN = 370 MHz, A_IN = –1 dBFS			67.4
		f_IN = 470 MHz, A_IN = –3 dBFS			66.4
		f_IN = 720 MHz	A_IN = –6 dBFS		65.8
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		61
SFDR	Spurious-free dynamic range (excluding IL spurs)	f_IN = 10 MHz, A_IN = –1 dBFS			90	dBc
		f_IN = 100 MHz, A_IN = –1 dBFS			85
		f_IN = 170 MHz, A_IN = –1 dBFS		76	85
		f_IN = 230 MHz, A_IN = –1 dBFS			80
		f_IN = 270 MHz, A_IN = –1 dBFS			84
		f_IN = 300 MHz, A_IN = –1 dBFS			81
		f_IN = 370 MHz, A_IN = –1 dBFS			73
		f_IN = 470 MHz, A_IN = –3 dBFS			69
		f_IN = 720 MHz	A_IN = –6 dBFS		64
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		65
HD2	Second-order harmonic distortion	f_IN = 10 MHz, A_IN = –1 dBFS			90	dBc
		f_IN = 100 MHz, A_IN = –1 dBFS			98
		f_IN = 170 MHz, A_IN = –1 dBFS		76	95
		f_IN = 230 MHz, A_IN = –1 dBFS			88
		f_IN = 270 MHz, A_IN = –1 dBFS			85
		f_IN = 300 MHz, A_IN = –1 dBFS			81
		f_IN = 370 MHz, A_IN = –1 dBFS			73
		f_IN = 470 MHz, A_IN = –3 dBFS			70
		f_IN = 720 MHz	A_IN = –6 dBFS		64
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		65
HD3	Third-order harmonic distortion	f_IN = 10 MHz, A_IN = –1 dBFS			98	dBc
		f_IN = 100 MHz, A_IN = –1 dBFS			85
		f_IN = 170 MHz, A_IN = –1 dBFS		76	85
		f_IN = 230 MHz, A_IN = –1 dBFS			80
		f_IN = 270 MHz, A_IN = –1 dBFS			84
		f_IN = 300 MHz, A_IN = –1 dBFS			84
		f_IN = 370 MHz, A_IN = –1 dBFS			80
		f_IN = 470 MHz, A_IN = –3 dBFS			69
		f_IN = 720 MHz	A_IN = –6 dBFS		75
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		77
Non HD2, HD3	Spurious-free dynamic range (excluding HD2, HD3, and IL spur)	f_IN = 10 MHz, A_IN = –1 dBFS			96	dBFS
		f_IN = 100 MHz, A_IN = –1 dBFS			97
		f_IN = 170 MHz, A_IN = –1 dBFS		79	96
		f_IN = 230 MHz, A_IN = –1 dBFS			94
		f_IN = 270 MHz, A_IN = –1 dBFS			94
		f_IN = 300 MHz, A_IN = –1 dBFS			93
		f_IN = 370 MHz, A_IN = –1 dBFS			88
		f_IN = 470 MHz, A_IN = –3 dBFS			90
		f_IN = 720 MHz	A_IN = –6 dBFS		82
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		83
ENOB	Effective number of bits	f_IN = 10 MHz, A_IN = –1 dBFS			11.6	Bits
		f_IN = 100 MHz, A_IN = –1 dBFS			11.6
		f_IN = 170 MHz, A_IN = –1 dBFS		10.8	11.5
		f_IN = 230 MHz, A_IN = –1 dBFS			11.3
		f_IN = 270 MHz, A_IN = –1 dBFS			11.3
		f_IN = 300 MHz, A_IN = –1 dBFS			11.2
		f_IN = 370 MHz, A_IN = –1 dBFS			11.0
		f_IN = 470 MHz, A_IN = –3 dBFS			10.7
		f_IN = 720 MHz	A_IN = –6 dBFS		10.6
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		9.8
THD	Total harmonic distortion	f_IN = 10 MHz, A_IN = –1 dBFS			89	dBc
		f_IN = 100 MHz, A_IN = –1 dBFS			84
		f_IN = 170 MHz, A_IN = –1 dBFS		73	84
		f_IN = 230 MHz, A_IN = –1 dBFS			79
		f_IN = 270 MHz, A_IN = –1 dBFS			81
		f_IN = 300 MHz, A_IN = –1 dBFS			79
		f_IN = 370 MHz, A_IN = –1 dBFS			72
		f_IN = 470 MHz, A_IN = –3 dBFS			67
		f_IN = 720 MHz	A_IN = –6 dBFS		63
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		64
SFDR_IL	Interleaving spur	f_IN = 10 MHz, A_IN = –1 dBFS			91	dBc
		f_IN = 100 MHz, A_IN = –1 dBFS			89.
		f_IN = 170 MHz, A_IN = –1 dBFS		69	86.
		f_IN = 230 MHz, A_IN = –1 dBFS			85
		f_IN = 270 MHz, A_IN = –1 dBFS			85
		f_IN = 300 MHz, A_IN = –1 dBFS			83
		f_IN = 370 MHz, A_IN = –1 dBFS			84
		f_IN = 470 MHz, A_IN = –3 dBFS			86
		f_IN = 720 MHz	A_IN = –6 dBFS		82
		f_IN = 720 MHz	A_IN = –6 dBFS, gain = 5 dB		83
IMD3	Two-tone, third-order intermodulation distortion	f_IN1 = 185 MHz, f_IN2 = 190 MHz, A_IN = –7 dBFS			93	dBFS
		f_IN1 = 365 MHz, f_IN2 = 370 MHz, A_IN = –7 dBFS			78
		f_IN1 = 465 MHz, f_IN2 = 470 MHz, A_IN = –7 dBFS			71
	Crosstalk isolation between channel A and B	Full-scale, 170-MHz signal on aggressor, idle channel is victim			100	dB

7.7 Digital Characteristics

typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = 85°C, ADC sampling rate = 625 MSPS, 50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, and –1-dBFS differential input (unless otherwise noted)

PARAMETER		TEST CONDITIONS	MIN	TYP	MAX	UNITS
DIGITAL INPUTS (RESET, SCLK, SEN, SDIN, SYNC, PDN)⁽¹⁾
V_IH	High-level input voltage	All digital inputs support 1.2-V and 1.8-V logic levels	0.8			V
V_IL	Low-level input voltage	All digital inputs support 1.2-V and 1.8-V logic levels			0.4	V
I_IH	High-level input current	SEN		0		µA
I_IH	High-level input current	RESET, SCLK, SDIN, PDN, SYNC		50		µA
I_IL	Low-level input current	SEN		50		µA
I_IL	Low-level input current	RESET, SCLK, SDIN, PDN, SYNC		0		µA
DIGITAL INPUTS (SYSREFP, SYSREFM)
V_D	Differential input voltage		0.35	0.45	1.4	V
V_{(CM_DIG)}	Common-mode voltage for SYSREF⁽³⁾			1.3		V
DIGITAL OUTPUTS (SDOUT, PDN⁽³⁾)
V_OH	High-level output voltage		DVDD – 0.1	DVDD		V
V_OL	Low-level output voltage				0.1	V
DIGITAL OUTPUTS (JESD204B Interface: DxP, DxM)⁽²⁾
V_OD	Output differential voltage	With default swing setting		700		mV_PP
V_OC	Output common-mode voltage			450		mV
	Transmitter short-circuit current	Transmitter pins shorted to any voltage between –0.25 V and 1.45 V	–100		100	mA
z_os	Single-ended output impedance			50		Ω
	Output capacitance	Output capacitance inside the device, from either output to ground		2		pF

(1) The RESET, SCLK, SDIN, and PDN pins have a 20-kΩ (typical) internal pulldown resistor to ground, and the SEN pin has a 20-kΩ (typical) pullup resistor to IOVDD.

(2) 100-Ω differential termination.

(3) When functioning as an OVR pin for channel B.

7.8 Timing Characteristics

typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = 85°C, ADC sampling rate = 625 MSPS, 50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, and –1-dBFS differential input (unless otherwise noted)

		MIN	TYP	MAX	UNITS
SAMPLE TIMING
	Aperture delay	0.75		1.6	ns
	Aperture delay matching between two channels on the same device		±70		ps
	Aperture delay matching between two devices at the same temperature and supply voltage		±270		ps
	Aperture jitter		120		f_S rms
WAKE-UP TIMING
	Wake-up time to valid data after coming out of global power-down		150		µs
LATENCY
	Data latency⁽¹⁾: ADC sample to digital output		134		Input clock cycles
	OVR latency: ADC sample to OVR bit		62		Input clock cycles
t_PD	Propagation delay: logic gates and output buffers delay (does not change with f_S)		4		ns
SYSREF TIMING
t_{SU_SYSREF}	Setup time for SYSREF, referenced to the input clock falling edge	300		900	ps
t_{H_SYSREF}	Hold time for SYSREF, referenced to the input clock falling edge	100			ps
JESD OUTPUT INTERFACE TIMING CHARACTERISTICS
	Unit interval	160		400	ps
	Serial output data rate	2.5		6.25	Gbps
	Total jitter for BER of 1E-15 and lane rate = 6.25 Gbps		26		ps
	Random jitter for BER of 1E-15 and lane rate = 6.25 Gbps		0.75		ps rms
	Deterministic jitter for BER of 1E-15 and lane rate = 6.25 Gbps		12		ps, pk-pk
t_R, t_F	Data rise time, data fall time: rise and fall times are measured from 20% to 80%, differential output waveform, 2.5 Gbps ≤ bit rate ≤ 6.25 Gbps		35		ps

(1) Overall ADC latency = data latency + t_PDI.

7.9 Typical Characteristics

typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = 85°C, ADC sampling rate = 625 MSPS, 50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, –1-dBFS differential input, and 0-dB digital gain (unless otherwise noted)

SNR = 71.9 dBFS, SINAD = 71.86 dBFS,
THD = 93 dBc, IL spur = 94 dBc, SFDR = 94 dBc,
non HD2, HD3 spur = 94 dBc

Figure 3. FFT for 10-MHz Input Signal

SNR = 71 dBFS, SINAD = 70.9 dBFS,
SFDR = 85 dBc, THD = 84 dBc, IL spur = 87 dBc,
non HD2, HD3 spur = 93 dBc

Figure 5. FFT for 170-MHz Input Signal

SNR = 69.5 dBFS, SINAD = 69.1 dBFS,
IL spur = 81 dBc, SFDR = 80 dBc, THD = 79 dBc,
non HD2, HD3 spur = 90 dBc

Figure 7. FFT for 300-MHz Input Signal

Fundamental amplitude = –3 dBFS, SNR = 68.4 dBFS,
SINAD = 66.1 dBFS, SFDR = 68 dBc, THD = 67 dBc,
IL spur = 89 dBc, non HD2, HD3 spur = 85 dBc

Figure 9. FFT for 470-MHz Input Signal

f_IN1 = 185 MHz, f_IN2 = 190 MHz, each tone at –36 dBFS,
IMD = 107 dBFS

Figure 11. FFT for Two-Tone Input Signal (–36 dBFS)

f_IN1 = 370 MHz, f_IN2 = 365 MHz, each tone at –36 dBFS,
IMD = 109 dBFS

Figure 13. FFT for Two-Tone Input Signal (–36 dBFS)

f_IN1 = 470 MHz, f_IN2 = 465 MHz, each tone at –36 dBFS,
IMD = 107 dBFS

Figure 15. FFT for Two-Tone Input Signal
(–36 dBFS)

f_IN1 = 365 MHz, f_IN2 = 370 MHz

Figure 17. Intermodulation Distortion vs Input Amplitude
(365 MHz and 370 MHz)

Figure 19. Spurious-Free Dynamic Range vs
Input Frequency

Figure 21. Signal-to-Noise Ratio vs Input Frequency

f_IN = 170 MHz

Figure 23. Spurious-Free Dynamic Range vs
AVDD Supply and Temperature

f_IN = 350 MHz

Figure 25. Spurious-Free Dynamic Range vs
AVDD Supply and Temperature

f_IN = 170 MHz

Figure 27. Spurious-Free Dynamic Range vs
DVDD Supply and Temperature

f_IN = 350 MHz

Figure 29. Spurious-Free Dynamic Range vs
DVDD Supply and Temperature

f_IN = 170 MHz

Figure 31. Spurious-Free Dynamic Range vs
AVDD3V Supply and Temperature

f_IN = 350 MHz

Figure 33. Spurious-Free Dynamic Range vs
AVDD3V Supply and Temperature

f_IN = 350 MHz

Figure 35. Performance vs Amplitude

f_IN = 350 MHz

Figure 37. Performance vs Differential Clock Amplitude

f_IN = 350 MHz

Figure 39. Performance vs Input Clock Duty Cycle

f_IN = 170 MHz, A_IN = –1 dBFS,
f_PSRR = 5 MHz, A_PSRR= 50 mV_PP, PSRR (AVDD supply) = 51 dB

Figure 41. Power-Supply Rejection Ratio FFT
for Test Signal on the AVDD Supply

f_IN = 170 MHz, A_IN = –1 dBFS,
f_CMRR = 5 MHz, A_CMRR= 50 mV_PP, CMRR = 40 dB

Figure 43. Common-Mode Rejection Ratio FFT

NOTE: ADC output amplitude is –1 dBFS, input amplitude is scaled down by the amount of programmed digital gain.

Figure 45. Signal-to-Noise Ratio vs
Gain and Input Frequency

Figure 47. Power Consumption vs Sampling Speed

SNR = 72 dBFS, SINAD = 71.8 dBFS,
SFDR = 84 dBc, THD = 83 dBc, non HD2, HD3 spur = 98 dBc

Figure 49. FFT for 350-MHz Input Signal in
Decimate-by-2 Mode

SNR = 77.4 dBFS, SINAD = 77.3 dBFS,
SFDR = 105 dBc, THD = 102 dBc, non HD2, HD3 spur = 105 dBc

Figure 51. FFT for 70-MHz Input Signal in
Decimate-by-4 Mode

SNR = 74.9 dBFS, SINAD = 74.8 dBFS,
SFDR = 93 dBc, THD = 92 dBc,
non HD2, HD3 spur = 93 dBc

Figure 53. FFT for 270-MHz Input Signal in
Decimate-by-4 Mode

SNR = 71.3 dBFS, SINAD = 71.1 dBFS,
SFDR = 86 dBc, THD = 85 dBc, IL spur = 87 dBc,
non HD2, HD3 spur = 95 dBc

Figure 4. FFT for 140-MHz Input Signal

SNR = 70.4 dBFS, SINAD = 69.9 dBFS,
IL spur = 89 dBc, SFDR = 80 dBc, THD = 79 dBc,
non HD2, HD3 spur = 91 dBc

Figure 6. FFT for 230-MHz Input Signal

SNR = 68.8 dBFS, SINAD = 67.3 dBFS,
SFDR = 73 dBc, THD = 72 dBc,
IL spur = 81 dBc, non HD2, HD3 spur = 89 dBc

Figure 8. FFT for 370-MHz Input Signal

f_IN1 = 185 MHz, f_IN2 = 190 MHz, each tone at –7 dBFS, IMD = 89 dBFS

Figure 10. FFT for Two-Tone Input Signal (–7 dBFS)

f_IN1 = 370 MHz, f_IN2 = 365 MHz, each tone at –7 dBFS,
IMD = 78 dBFS

Figure 12. FFT for Two-Tone Input Signal (–7 dBFS)

f_IN1 = 470 MHz, f_IN2 = 465 MHz, each tone at –7 dBFS,
IMD = 71 dBFS

Figure 14. FFT for Two-Tone Input Signal (–7 dBFS)

f_IN1 = 185 MHz, f_IN2 = 190 MHz

Figure 16. Intermodulation Distortion vs Input Amplitude
(185 MHz and 190 MHz)

f_IN1 = 465 MHz, f_IN2 = 470 MHz

Figure 18. Intermodulation Distortion vs Input Amplitude
(465 MHz and 470 MHz)

Figure 20. Interleaving Spur vs Input Frequency

f_IN = 170 MHz

Figure 22. Signal-to-Noise Ratio vs
AVDD Supply and Temperature

f_IN = 350 MHz

Figure 24. Signal-to-Noise Ratio vs
AVDD Supply and Temperature

f_IN = 170 MHz

Figure 26. Signal-to-Noise Ratio vs
DVDD Supply and Temperature

f_IN = 350 MHz

Figure 28. Signal-to-Noise Ratio vs
DVDD Supply and Temperature

f_IN = 170 MHz

Figure 30. Signal-to-Noise Ratio vs
AVDD3V Supply and Temperature

f_IN = 350 MHz

Figure 32. Signal-to-Noise Ratio vs
AVDD3V Supply and Temperature

f_IN = 170 MHz

Figure 34. Performance vs Amplitude

f_IN = 170 MHz

Figure 36. Performance vs Differential Clock Amplitude

f_IN = 170 MHz

Figure 38. Performance vs Input Clock Duty Cycle

Figure 40. Power-Supply Rejection Ratio vs
Test Signal on AVDD

Figure 42. Common-Mode Rejection Ratio vs
Common-Mode Signal

Figure 44. Maximum-Supported Amplitude vs
Input Frequency

NOTE: ADC output amplitude is –1 dBFS, input amplitude is scaled down by the amount of programmed digital gain.

Figure 46. Spurious-Free Dynamic Range vs
Gain and Input Frequency

SNR = 74.1 dBFS, SINAD = 74.09 dBFS,
SFDR = 98 dBc, THD = 93 dBc, non HD2, HD3 spur = 99 dBc

Figure 48. FFT for 185-MHz Input Signal in
Decimate-by-2 Mode

SNR = 77.6 dBFS, SINAD = 77.5 dBFS,
SFDR = 93 dBc, THD = 92 dBc, non HD2, HD3 spur = 106 dBc

Figure 50. FFT for 10-MHz Input Signal in
Decimate-by-4 Mode

SNR = 76.7 dBFS, SINAD = 76.6 dBFS,
SFDR = 96 dBc, THD = 98 dBc, non HD2, HD3 spur = 96 dBc

Figure 52. FFT for 170-MHz Input Signal in
Decimate-by-4 Mode

7.10 Typical Characteristics: Contour

typical values are at T_A = 25°C, full temperature range is from T_MIN = –40°C to T_MAX = 85°C, ADC sampling rate = 625 MSPS, 50% clock duty cycle, AVDD3V = 3.0 V, AVDD = DVDD = 1.9 V, IOVDD = 1.15 V, –1-dBFS differential input, and 0-dB digital gain (unless otherwise noted)