Texas Instruments INA849DR
- Part Number:
- INA849DR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 6374670-INA849DR
- Description:
- Ultra-low noise (1 nV/√Hz), high-speed (28 MHz, 35 V/μ), precision (35 μV) instrumentation amplifier
- Datasheet:
- ina849
- Number of channels1
- Vs (max) (V)36
- Vs (min) (V)8
- Input offset (±) (max) (μV)35
- Voltage gain (min) (V/V)1
- Voltage gain (max) (V/V)10000
- Noise at 1 kHz (typ) (nV√Hz)1
- FeaturesCurrent Feedback
- CMRR (min) (dB)120
- Input offset drift (±) (max) (V/°C)0.0000004
- Input bias current (±) (max) (nA)20
- Iq (typ) (mA)6.2
- Bandwidth at min gain (typ) (MHz)28
- Operating temperature range (°C)-40 to 125
- RatingCatalog
- TypeResistor
- Output swing headroom (to negative supply) (typ) (V)0.15
- Output swing headroom (to positive supply) (typ) (V)-0.15
- 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)0.06
The INA849 is an ultra-low noise instrumentation amplifier optimized for maximum accuracy in high-resolution systems and operation over a wide single-supply or dual-supply range. The device offers significantly lower input bias current than competitors 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.
Precisely matched integrated resistors provide a high, 92-dB (G = 1) common-mode rejection across the full input common-mode range. A single external resistor sets any gain from 1 to 10,000. The current-feedback topology of the INA849 provides wide bandwidth at higher gains for very-small, fast-moving signals. For example, the device provides 8 MHz of bandwidth at G = 100, and 28 MHz at a G = 1, with a fast 0.4-µs settling time (0.01%) for directly driving high-resolution, analog-to-digital converters (ADCs).
Ultra-low noise (1 nV/√Hz), high-speed (28 MHz, 35 V/μs) precision (35 μV) instrumentation amplifier 8-SOIC -40 to 125
INST Amp Single ±18V/36V 8-Pin SOIC T/R
-
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
-
INA849DR1368351100001Current Feedback1200.0000004206.228-40 to 125CatalogResistor0.15-0.152.5-2.50.06-
-
1368351100001Current Feedback1200.0000004206.228-40 to 125CatalogResistor0.15-0.152.5-2.50.06
-
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
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