Texas Instruments INA851RGTR
- Part Number:
- INA851RGTR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6374671-INA851RGTR
- Description:
- Low-noise (3.2 nV/√Hz) high-speed (22 MHz) fully-differential instrumentation amp with OVP (±40 V)
- Datasheet:
- ina851
- Number of channels1
- Vs (max) (V)36
- Vs (min) (V)8
- Input offset (±) (max) (μV)35
- Voltage gain (min) (V/V)0.2
- Voltage gain (max) (V/V)1000
- Noise at 1 kHz (typ) (nV√Hz)3.2
- FeaturesFully Differential
- CMRR (min) (dB)120
- Input offset drift (±) (max) (V/°C)0.0000004
- Input bias current (±) (max) (nA)20
- Iq (typ) (mA)6
- Bandwidth at min gain (typ) (MHz)22
- Operating temperature range (°C)-40 to 125
- RatingCatalog
- TypeResistor
- Output swing headroom (to negative supply) (typ) (V)1.4
- Output swing headroom (to positive supply) (typ) (V)-1.4
- Input common mode headroom (to negative supply) (typ) (V)2.5
- Input common mode headroom (to positive supply) (typ) (V)-2.5
- Noise at 0.1 Hz to 10 Hz (typ) (μVPP)0.1
The INA851 is the industrys first high-precision instrumentation amplifier with fully differential outputs. This device is optimized to drive inputs of modern high performance analog-to-digital converters (ADCs) with fully differential inputs. The INA851 operates over a very-wide, single-supply or dual-supply range. The output stage gain can be set to either 0.2 or to 1 by shorting or floating two pins. A single external resistor sets any input stage gain from 1 to 10,000.
Compared to other amplifiers in the same class, the INA851 offers very-low input bias current and low input-referred current noise as a result of super-beta input transistors. A state-of-the-art manufacturing process provides exceptionally low voltage noise, input offset voltage, and offset voltage drift. Additional circuitry protects the device inputs against overvoltage up to ±40 V beyond the power-supply voltages.The device outputs feature built-in clamping circuitry to protect the ADC or downstream device against overdrive damage.
The device is designed for operation from either an 8-V minimum single or ±4-V dual supply, and a maximum of 36-V single or ±18 V dual supply.
FULLY DIFFERENTIAL INSTRUMENTATI
-
ImagePart NumberManufacturerNumber of channelsVs (max) (V)Vs (min) (V)Input offset (±) (max) (μV)Voltage gain (min) (V/V)Voltage gain (max) (V/V)Noise at 1 kHz (typ) (nV√Hz)FeaturesCMRR (min) (dB)Input offset drift (±) (max) (V/°C)Input bias current (±) (max) (nA)Iq (typ) (mA)Bandwidth at min gain (typ) (MHz)Operating temperature range (°C)RatingTypeOutput swing headroom (to negative supply) (typ) (V)Output swing headroom (to positive supply) (typ) (V)Input common mode headroom (to negative supply) (typ) (V)Input common mode headroom (to positive supply) (typ) (V)Noise at 0.1 Hz to 10 Hz (typ) (μVPP)View Compare
-
INA851RGTR1368350.210003.2Fully Differential1200.000000420622-40 to 125CatalogResistor1.4-1.42.5-2.50.1-
-
136835200020001.5Current Feedback1320.00000045506.22.8-40 to 125CatalogFixed Gain0.15-0.152.5-2.50.055
-
1364.550110007Overvoltage protection1400.00000050.60.62-40 to 125CatalogResistor0.15-0.152-20.14
-
13631501100018Cost Optimized1200.000002650.21-40 to 125CatalogResistor0.1-0.150-10.52
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