INA117P-OPTECH CO.,LIMITED

Model:INA117P

Model:INA117P
Manufacturer： Texas Instruments
Stocks：2000
Describe：

Precision unit gain differential amplifier with ultra-wide common-mode input voltage range. This device is a single-chip precision differential amplifier composed of a precision operational amplifier and an integrated thin-film resistor network. It can accurately measure tiny differential voltages even in the presence of up to ±200V common-mode signals, and can replace isolated amplifiers in applications without electrical isolation, eliminating expensive isolated power supplies and the associated ripple, noise, and static current. The input can withstand up to ±500V instantaneous common-mode or differential overload, with a common-mode rejection ratio (CMRR) of at least 70dB (typical value 86dB). Non-linearity is as low as 0.001% (maximum), and the bandwidth is 200kHz. It is packaged in an 8-pin PDIP, operates within a temperature range of -40°C to +85°C, and is suitable for industrial automation, power monitoring, and other applications requiring high common-mode voltage differential measurements.

Features ：

• Common-mode input voltage range: ±200V (VS = ±15V)

• Input overload protection: ±500V (common mode/differential mode, instantaneous)

• Gain: Unit gain, maximum gain error 0.05%

• Nonlinearity: Maximum 0.001%

• Common Mode Rejection Ratio (CMRR): Minimum 70dB, Typical value 86dB

• Bandwidth: 200 kHz (-3dB)

• Compression rate: 2.6V/µs

• Unbalanced voltage: 120 µV (typical value)

• Power supply voltage range: Single power supply 10V to 36V, Dual power supply ±5V to ±18V

• Static current: 1.5mA

• Output current capacity: 20mA

• Operating temperature range: -40°C to +85°C

• Package type: PDIP-8 (8-pin plastic DIP), size 6.35mm × 9.81mm

• Environmental compliance: Obtained lead-free certification and complies with RoHS standards

Application：

• Current monitoring: High-side current detection

• Battery cell voltage monitoring: Voltage detection of each cell in the power battery pack

• Ground potential breaker / Ground fault detection: Common-mode voltage isolation measurement

• Factory Automation: Signal Acquisition in Industrial Sites

• Signal acquisition in noisy environments: Differential measurement in highly interfered conditions

• Input protection circuit: High-voltage input protection