The INA826S device is a low-cost instrumentation amplifier that offers extremely low power consumption along with shutdown and operates over a very wide single- or dual-supply range. A single external resistor sets any gain from 1 to 1000. The device offers excellent stability over temperature, even at G > 1, as a result of the low gain drift of only 35 ppm/°C (max).The INA826S is optimized to provide excellent common-mode rejection ratio of over 100 dB (G = 10) over frequencies up to 5 kHz. At G = 1, the common-mode rejection ratio exceeds 84 dB across the full input common-mode range from the negative supply all the way up to 1 V of the positive supply. Using a rail-to-rail output, the INA826S is well-suited for low voltage operation from a 3-V single supply as well as dual supplies up to ±18 V.Shutdown pins are provided to reduce supply current below 2 µA. Additional circuitry protects the inputs against overvoltage of up to ±40 V beyond the power supplies by limiting the input currents to less than 8 mA.The INA826S is available in a 10-pin, 3-mm × 3-mm VSON surface-mount package. The INA826S is specified over the –40°C to +125°C temperature range.
- Input Common-Mode Range: Includes V–
- Common-Mode Rejection:
- 104 dB (Min, G = 10)
- 100 dB (Min at 5 kHz, G = 10)
- Power-Supply Rejection: 100 dB (Min, G = 1)
- Low Offset Voltage: 150 µV, max
- Gain Drift: 1 ppm/°C (G = 1), 35 ppm/°C (G > 1)
- Noise: 18 nV/√Hz, G ≥ 100
- Bandwidth: 1 MHz (G = 1), 60 kHz (G = 100)
- Inputs Protected up to ±40 V
- Rail-to-Rail Output
- Supply Current: 200 µA
- Supply Range:
- Single Supply: 3 V to 36 V
- Dual Supply: ±1.5 V to ±18 V
- Specified Temperature Range:
–40°C to +125°C - Packages: 3-mm × 3-mm VSON
| Number of channels | 1 |
| Vs (max) (V) | 36 |
| Vs (min) (V) | 3 |
| Input offset (±) (max) (µV) | 150 |
| Voltage gain (min) (V/V) | 1 |
| Voltage gain (max) (V/V) | 1000 |
| Noise at 1 kHz (typ) (nV√Hz) | 18 |
| Features | Cost Optimized, Overvoltage protection, Shutdown, Small Size |
| CMRR (min) (dB) | 120 |
| Input offset drift (±) (max) (V/°C) | 0.000002 |
| Input bias current (±) (max) (nA) | 65 |
| Iq (typ) (mA) | 0.2 |
| Bandwidth at min gain (typ) (MHz) | 1 |
| Gain error (±) (max) (%) | 0.15 |
| Operating temperature range (°C) | -40 to 125 |
| Rating | Catalog |
| Type | Resistor |
| Gain nonlinearity (±) (max) (%) | 0.002 |
| Output swing headroom (to negative supply) (typ) (V) | 0.1 |
| Output swing headroom (to positive supply) (typ) (V) | -0.15 |
| Input common mode headroom (to negative supply) (typ) (V) | 0 |
| Input common mode headroom (to positive supply) (typ) (V) | -1 |
| Noise at 0.1 Hz to 10 Hz (typ) (µVPP) | 0.52 |