THS4551 (ACTIVE)

Low Noise, Precision, 150MHz, Fully Differential Amplifier

 

Description

The THS4551 fully differential amplifier offers an easy interface from single-ended sources to the differential output required by high-precision analog-to-digital converters (ADCs). Designed for exceptional dc accuracy, low noise, and robust capacitive load driving, this device is well suited for data acquisition systems where high precision is required along with the best signal-to-noise ratio (SNR) and spurious-free dynamic range (SFDR) through the amplifier and ADC combination.

The THS4551 features the negative rail input required when interfacing a dc-coupled, ground-centered, source signal to a single-supply differential input ADC. Very low dc error and drift terms support the emerging 16- to 20-bit successive-approximation register (SAR) input requirements. A wide-range output common-mode control supports the ADC running from 1.8-V to 5-V supplies with ADC common-mode input requirements from 0.7 V to greater than 3.0 V.

The THS4551 device is characterized for operation over the wide temperature range of –40°C to +125°C, and is available in 8-pin VSSOP, 16-pin VQFN, and 10-pin WQFN packages.



Features

  • Bandwidth: 150 MHz (G = 1 V/V)
  • Differential Output Slew Rate: 220 V/µs
  • Gain Bandwidth Product: 135 MHz
  • Negative Rail Input (NRI),
    Rail-to-Rail Output (RRO)
  • Wide Output Common-Mode Control Range
  • Single-Supply Operating Range: 2.7 V to 5.4 V
  • Trimmed-Supply Current: 1.37 mA at 5 V
  • 25°C Input Offset: ±175 µV (max)
  • Input Offset Voltage Drift: ±1.8 µV/°C (max)
  • Differential Input Voltage Noise: 3.3 nV/√Hz
  • HD2: –128 dBc at 2 VPP, 100 kHz
  • HD3: –139 dBc at 2 VPP, 100 kHz
  • < 50-ns Settling Time: 4-V Step to 0.01%
  • 18-Bit Settling Time: 4-V Step, < 500 ns

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Parametrics Compare all products in High-Speed Op Amps (GBW>=50MHz)

 
Architecture
Number of Channels (#)
Total Supply Voltage (Min) (+5V=5, +/-5V=10)
Total Supply Voltage (Max) (+5V=5, +/-5V=10)
BW @ Acl (MHz)
Acl, min spec gain (V/V)
Slew Rate (Typ) (V/us)
Vn at Flatband (Typ) (nV/rtHz)
Vn at 1kHz (Typ) (nV/rtHz)
Iq per channel (Typ) (mA)
Vos (Offset Voltage @ 25C) (Max) (mV)
Rail-to-Rail
Features
Rating
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
CMRR (Typ) (dB)
Input Bias Current (Max) (pA)
Offset Drift (Typ) (uV/C)
GBW (Typ) (MHz)
Output Current (Typ) (mA)
2nd Harmonic (dBc)
3rd Harmonic (dBc)
@ MHz
THS4551 THS4521 THS4522 THS4531A THS4532 THS4541 THS4552 THS4561
Bipolar
Fully Differential
Voltage FB   
Voltage FB    Voltage FB    Fully Differential
Voltage FB   
Fully Differential
Voltage FB   
Fully Differential
Voltage FB   
Bipolar
Fully Differential
Voltage FB   
Fully Differential   
1    1    2    1    2    1    2    1   
2.7    2.5    2.5    2.5    2.5    2.7    2.7    2.85   
5.4    5.5    5.5    5.5    5.5    5.4    5.4    12.6   
150    145    145    36    36    620    150    70   
1    1    1    1    1    1    1    1   
220    490    490    220    220    1500    220    130   
3.3    4.6    4.6    10    10    2.2    3.3    5   
3.3    5.2    5.2    10    10    33    3.3    5   
1.35    1.14    1.14    0.25    0.25    10.1    1.37    0.82   
0.175    2    2    0.4    0.4    0.45    0.265    0.2   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
In to V-
Out   
Small Size
Shutdown   
Shutdown    Shutdown    Small Size
Shutdown   
Shutdown    Small Size
Shutdown   
Shutdown    Shutdown   
Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog    Catalog   
-40 to 125    -40 to 85    -40 to 85    -40 to 125    -40 to 125    -40 to 125    -40 to 125    -40 to 125
-40 to 85   
QFN
VQFN
VSSOP   
SOIC
VSSOP   
TSSOP    QFN
SOIC
VSSOP   
TSSOP    QFN
VQFN   
TSSOP
WQFN   
VSSOP   
10QFN: 4 mm2: 2 x 2(QFN)
16VQFN: 9 mm2: 3 x 3(VQFN)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)    10QFN: 4 mm2: 2 x 2(QFN)
8SOIC: 29 mm2: 6 x 4.9(SOIC)
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)    10QFN: 4 mm2: 2 x 2(QFN)
16VQFN: 9 mm2: 3 x 3(VQFN)   
16TSSOP: 32 mm2: 6.4 x 5(TSSOP)
24WQFN: 16 mm2: 4 x 4(WQFN)   
8VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
110    102    102    116    116    100    110    110   
1500000    900000    900000    250000    250000    13000000    1500000    200000   
0.45    2    2    3    3    0.5    0.45    0.3   
135    95    95    27    27    850    135    60   
45    55    55    26    26    100    65    35   
128    133    133    129    128    140    128    110   
139    141    141    138    137    140    139    115   
0.1    0.001    0.001    0.001    0.01    0.1    0.1