Product Details

describe:

The INA823 is an integrated instrumentation BAT54A amplifier with low power consumption and can operate over a wide single or dual supply range. A single external resistor can set any gain from 1 to 10,000. The device offers low input offset voltage, low offset voltage drift, low input bias current, and low current noise while remaining cost-effective. Additional circuitry protects the input from overvoltages up to ±60 V.

The INA823 is optimized to provide a high common mode rejection ratio. With G = 1, the CMRR exceeds 84 dB over the entire input common-mode range. The INA823 has a wide common-mode voltage range down to 150mV below the negative supply. The device is designed for low voltage operation from a single 2.7V supply and dual supplies up to ±18V. Low power consumption and single-supply operation support handheld battery-powered systems.

characteristic:

● Input overvoltage protection up to ±60 V

●The input voltage is 150 mV lower than the negative supply

●Low supply current: 180 μA (typ.)

●Precision performance:

○ Low offset voltage: 20 μV (typ.), 100 μV (max.)

○ Low input bias current: 8nA (max)

○Common mode rejection:

◆84 dB, G = 1 (minimum)

◆104 dB, G = 10 (minutes)

◆120 dB, G ≥ 100 (minutes)

○ Power Rejection: 100 dB, G = 1 (minimum)

●Input voltage noise: 21 nV/√Hz

Bandwidth: 1.9 MHz (G = 1), 60 kHz (G = 100)

●Stable under 1nF capacitive load

●Scope of supply:

○Single power supply: 2.7V to 36V

○Dual power supply: ±1.35V to ±18V

●Specified temperature range: –40°C to +125°C

●Package: 8-pin SOIC and 8-pin VSSOP

parameter:

Number of channels (#): 1

Vs (max) (V): 36

Vs (min) (V): 2.7

Input Offset (+/-) (Max) (uV): 100

Gain (Min) (V/V): 1

Gain (Max) (V/V): 1000

Noise at 1 kHz (typ.) (nV/rt (Hz)): 21

Features: Cost optimization, low power consumption, overvoltage protection

CMRR (minimum) (dB): 120

Input Offset Drift (+/-) (Max) (uV/C): 1.2

Input Bias Current (+/-) (Max) (nA) :8

Iq (typ) (mA): 0.18

Minimum Gain Bandwidth (Typ) (MHz): 1.9

Gain Error (+/-) (Max) (%): 0.2

Operating temperature range (°C): -40 to 125

Type: Resistor

Output Swing Margin (to Negative Supply) (typ) (V): 0.15

Output Swing Margin (to positive supply) (typ) (V): -0.15

Input Common Mode Headroom (to Negative Supply) (typ) (V): -0.15

Input Common Mode Headroom (to positive supply) (typ) (V): -1

Noise (typ) at 0.1 Hz-10 Hz (uVpp) : 0.4

Gain Nonlinearity (+/-) (Max) (%): 0.001