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INA821IDGKR
High bandwidth (4.7MHz), low noise (7nV/√Hz), precision (35μV), low-power, instrumentation amp
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Manufacturer:
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Mfr.Part #:
INA821IDGKR
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Datasheet:
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Number of channels:
1
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Vs (max) (V):
36
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Vs (min) (V):
4.5
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Input offset (±) (max) (µV):
35
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EDA/CAD Models:
Availability: 6116 PCS
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INA821IDGKR General Description
The INA821 is a high-precision instrumentation amplifier that offers low power consumption and operates over a wide single-supply or dual-supply range. A single external resistor sets any gain from 1 to 10,000. The device has high precision as a result of super-beta input transistors, which provide low input offset voltage, offset voltage drift, input bias current, and input voltage and current noise. Additional circuitry protects the inputs against overvoltage up to ±40 V.
The INA821 is optimized to provide a high common-mode rejection ratio. At G = 1, the common-mode rejection ratio exceeds 92 dB across the full input common-mode range. The device is designed for low-voltage operation from a 4.5-V single supply, and dual supplies up to ±18 V.
The INA821 is available in 8-pin SOIC, VSSOP, and WSON packages, and is specified over the –40°C to +125°C temperature range.
Key Features
- Low offset voltage: 10 µV (typ), 35 µV (max)
- Gain drift: 5 ppm/°C (G = 1),
35 ppm/°C (G > 1) (max) - Noise: 7 nV/√Hz
- Bandwidth: 4.7 MHz (G = 1), 290 kHz (G = 100)
- Stable with 1-nF capacitive loads
- Inputs protected up to ±40 V
- Common-mode rejection: 112 dB, G = 10 (min)
- Power supply rejection: 110 dB, G = 1 (min)
- Supply current: 650 µA (max)
- Supply range:
- Single-supply: 4.5 V to 36 V
- Dual-supply: ±2.25 V to ±18 V
- Specified temperature range: –40°C to +125°C
- Packages: 8-pin SOIC, VSSOP, and WSON
Specifications
Number of channels | 1 | Vs (max) (V) | 36 |
Vs (min) (V) | 4.5 | Input offset (±) (max) (µV) | 35 |
Voltage gain (min) (V/V) | 1 | Voltage gain (max) (V/V) | 10000 |
Noise at 1 kHz (typ) (nV√Hz) | 7 | Features | Overvoltage protection, Small Size, Super-beta |
CMRR (min) (dB) | 136 | Input offset drift (±) (max) (V/°C) | 0.0000004 |
Input bias current (±) (max) (nA) | 0.5 | Iq (typ) (mA) | 0.6 |
Bandwidth at min gain (typ) (MHz) | 4.7 | Gain error (±) (max) (%) | 0.15 |
Operating temperature range (°C) | -40 to 125 | Rating | Catalog |
Type | Resistor | Gain nonlinearity (±) (max) (%) | 0.0015 |
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 | Input common mode headroom (to positive supply) (typ) (V) | -2 |
Noise at 0.1 Hz to 10 Hz (typ) (µVPP) | 0.14 | feature-number-of-channels-per-chip | 1 |
feature-rail-to-rail | feature-typical-gain-bandwidth-product-mhz | ||
feature-maximum-input-offset-voltage-mv | 0.04@±15V | feature-maximum-operating-supply-voltage-v | 36|±18 |
feature-maximum-input-bias-current-ua | 0.0005@±15V | feature-packaging | Tape and Reel |
feature-rad-hard | feature-pin-count | 8 | |
feature-cecc-qualified | feature-esd-protection | Yes | |
feature-military | No | feature-aec-qualified | No |
feature-aec-qualified-number | feature-auto-motive | No | |
feature-p-pap | No | feature-eccn-code | EAR99 |
feature-svhc | feature-svhc-exceeds-threshold | No |
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AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.
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Availability: 6116 PCS
+BOMQty. | Unit Price | Ext. Price |
---|---|---|
1+ | $3.189 | $3.19 |
10+ | $2.800 | $28.00 |
30+ | $2.570 | $77.10 |
100+ | $2.339 | $233.90 |
500+ | $2.230 | $1,115.00 |
1000+ | $2.182 | $2,182.00 |
The prices below are for reference only.
All bill of materials (BOM) can be sent via email to [email protected], or fill below form to Quote for INA821IDGKR, guaranteed quotes back within 12hr.