OPA2625

ACTIVO

Controladores ADC de 16 y 18 bits de gran ancho de banda, alta precisión y baja THD+N con desconexió

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Hoja de datos

document-pdfAcrobat OPAx625 High-Bandwidth, High-Precision, Low THD+N, 16-Bit and 18-Bit Analog-to-Digital Converter (ADC) Drivers datasheet (Rev. A) (Inglés) PDF | HTML

OPA2625

ACTIVO

Hoja de datos

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Detalles del producto

Architecture

Voltage FB

Number of channels

2

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

2.7

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

5.5

GBW (typ) (MHz)

120

BW at Acl (MHz)

120

Acl, min spec gain (V/V)

1

Slew rate (typ) (V/µs)

115

Vn at flatband (typ) (nV√Hz)

2.5

Vn at 1 kHz (typ) (nV√Hz)

3.2

Iq per channel (typ) (mA)

2

Vos (offset voltage at 25°C) (max) (mV)

0.1

Rail-to-rail

In to V-, Out

Features

Adjustable BW/IQ/IOUT, C-Load Drive, Shutdown

Rating

Catalog

Operating temperature range (°C)

-40 to 125

CMRR (typ) (dB)

117

Input bias current (max) (pA)

4000000

Offset drift (typ) (µV/°C)

0.5

Iout (typ) (mA)

100

2nd harmonic (dBc)

144

3rd harmonic (dBc)

155

Frequency of harmonic distortion measurement (MHz)

0.01

Architecture

Voltage FB

Number of channels

2

Total supply voltage (+5 V = 5, ±5 V = 10) (min) (V)

2.7

Total supply voltage (+5 V = 5, ±5 V = 10) (max) (V)

5.5

GBW (typ) (MHz)

120

BW at Acl (MHz)

120

Acl, min spec gain (V/V)

1

Slew rate (typ) (V/µs)

115

Vn at flatband (typ) (nV√Hz)

2.5

Vn at 1 kHz (typ) (nV√Hz)

3.2

Iq per channel (typ) (mA)

2

Vos (offset voltage at 25°C) (max) (mV)

0.1

Rail-to-rail

In to V-, Out

Features

Adjustable BW/IQ/IOUT, C-Load Drive, Shutdown

Rating

Catalog

Operating temperature range (°C)

-40 to 125

CMRR (typ) (dB)

117

Input bias current (max) (pA)

4000000

Offset drift (typ) (µV/°C)

0.5

Iout (typ) (mA)

100

2nd harmonic (dBc)

144

3rd harmonic (dBc)

155

Frequency of harmonic distortion measurement (MHz)

0.01

VSSOP (DGS)

10

14.7 mm² (3 mm × 4.9 mm)

High-Drive Mode:
- GBW (G = 100): 120 MHz
- Slew Rate: 115 V/µs
- 16-Bit Settling at 4-V Step: 280 ns
- Low Voltage Noise: 2.5 nV/√Hz at 10 kHz
- Low Output Impedance: 1 Ω at 1 MHz
- Offset Voltage: ±100 µV (max)
- Offset Voltage Drift: ±3 µV/ºC (max)
- LowQuiescent Current: 2 mA (typ)
Low-Power Mode:
- GBW: 1 MHz
- Low Quiescent Current: 270 µA (typ)
Power-Scalable Features:
- Ultrafast Transition from Low-Power to High-Drive Mode: 170 ns
High AC and DC Precision:
- Low Distortion: –122 dBc for HD2 and –140 dBc for HD3 at 100 kHz
- Input Common-Mode Range Includes Negative Rail
- Rail-to-Rail Output
- Wide Temperature Range: Fully Specified from –40°C to +125°C

High-Drive Mode:
- GBW (G = 100): 120 MHz
- Slew Rate: 115 V/µs
- 16-Bit Settling at 4-V Step: 280 ns
- Low Voltage Noise: 2.5 nV/√Hz at 10 kHz
- Low Output Impedance: 1 Ω at 1 MHz
- Offset Voltage: ±100 µV (max)
- Offset Voltage Drift: ±3 µV/ºC (max)
- LowQuiescent Current: 2 mA (typ)
Low-Power Mode:
- GBW: 1 MHz
- Low Quiescent Current: 270 µA (typ)
Power-Scalable Features:
- Ultrafast Transition from Low-Power to High-Drive Mode: 170 ns
High AC and DC Precision:
- Low Distortion: –122 dBc for HD2 and –140 dBc for HD3 at 100 kHz
- Input Common-Mode Range Includes Negative Rail
- Rail-to-Rail Output
- Wide Temperature Range: Fully Specified from –40°C to +125°C

The OPAx625 family of operational amplifiers are excellent 16-bit and 18-bit, SAR ADC drivers that are high precision with low THD and noise allow for a unique power-scalable solution. This family of devices is fully characterized and specified with a 16-bit settling time of 280 ns that enables a true 16-bit effective number of bits (ENOB). Along with a high dc precision of only 100 µV offset voltage, a wide gain-bandwidth product of 120 MHz, a low wideband noise of 2.5 nV/√Hz, this family is optimized for driving high-throughput, high-resolution SAR ADCs, such as the ADS88xx family of SAR ADCs.

The OPAx625 features two operating modes: high-drive and low-power. In the innovative low-power mode, the OPAx625 tracks the input signal allowing the OPAx625 to transition from low-power mode to high-drive mode at 16-bit ENOB within 170 ns.

The OPAx625 family is available in 6-pin SOT and 10-pin VSSOP packages and is specified for operation from –40°C to +125°C.

The OPAx625 family of operational amplifiers are excellent 16-bit and 18-bit, SAR ADC drivers that are high precision with low THD and noise allow for a unique power-scalable solution. This family of devices is fully characterized and specified with a 16-bit settling time of 280 ns that enables a true 16-bit effective number of bits (ENOB). Along with a high dc precision of only 100 µV offset voltage, a wide gain-bandwidth product of 120 MHz, a low wideband noise of 2.5 nV/√Hz, this family is optimized for driving high-throughput, high-resolution SAR ADCs, such as the ADS88xx family of SAR ADCs.

The OPAx625 features two operating modes: high-drive and low-power. In the innovative low-power mode, the OPAx625 tracks the input signal allowing the OPAx625 to transition from low-power mode to high-drive mode at 16-bit ENOB within 170 ns.

The OPAx625 family is available in 6-pin SOT and 10-pin VSSOP packages and is specified for operation from –40°C to +125°C.

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	OPAx625 High-Bandwidth, High-Precision, Low THD+N, 16-Bit and 18-Bit Analog-to-Digital Converter (ADC) Drivers datasheet (Rev. A)	PDF \| HTML	20/04/2015
	Libro electrónico	The Signal e-book: A compendium of blog posts on op amp design topics	PDF \| HTML	28/03/2017
	Libro electrónico	Analog Engineer’s Pocket Reference Guide Fifth Edition (Rev. D)	PDF \| HTML	30/09/2014

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