INA849DGKR
INST Amp Single ±18V/36V 8-Pin VSSOP T/R
Inventory:5,893
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Part Number : INA849DGKR
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Package/Case : VSSOP-8
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Brands : TI
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Components Categories : Instrumentation amplifiers
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Datesheet : INA849DGKR DataSheet (PDF)
Overview of INA849DGKR
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).
Key Features
- Ultra-low noise: 1-nV/√Hz input voltage noise (typical)
- Precision super-beta input performance:
- Low offset voltage: 35 µV (maximum)
- Low offset voltage drift: 0.4 µV/°C (maximum)
- Low input bias current: 20 nA (maximum)
- Low gain drift: 5 ppm/°C for G = 1 (maximum)
- Bandwidth: 28 MHz (G = 1), 8 MHz (G = 100)
- Slew rate: 35 V/µs
- Common-mode rejection: 120 dB (minimum) for maximum gain
- Supply range:
- Single supply: 8 V to 36 V
- Dual supply: ±4 V to ±18 V
- Specified temperature range: –40°C to +125°C
- Packages: 8-pin SOIC and VSSOP
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
Number of channels | 1 | 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 | Features | Current Feedback, High speed, Super-beta, Ultra-low noise |
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 | Gain error (±) (max) (%) | 0.1 |
Operating temperature range (°C) | -40 to 125 | Rating | Catalog |
Type | Resistor | Gain nonlinearity (±) (max) (%) | 0.001 |
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 |
Warranty & Returns
Warranty, Returns, and Additional Information
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QA & Return Policy
Parts Quality Guarantee: 365 days
Returns for refund: within 90 days
Returns for Exchange: within 90 days
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