Packaging information
| Package | Pins VSSOP (DGK) | 8 |
| Operating temperature range (°C) -40 to 125 |
| Package qty | Carrier 2,500 | LARGE T&R |
Features for the INA310B
- Wide common-mode voltage:
- Operational voltage: −4 V to +110 V
- Survival voltage: −20 V to +120 V
- High signal bandwidth: 1.3 MHz
- Slew rate: 2.5 V/µs
- Excellent CMRR: 160 dB
- Accuracy
- Gain error (maximum)
- Version A: 0.15%, 10 ppm/°C drift
- Version B: 0.5%, 20 ppm/°C drift
- Offset voltage (maximum)
- Version A: ±20 µV, ±0.25 µV/°C drift
- Version B: ±150 µV, ±1 µV/°C drift
- Gain error (maximum)
- On-board open-drain comparator
- Internal comparator voltage reference: 0.6 V
- Propagation delay time: 1 µs
- Latching capability on comparator
- Available gains:
- INA310A1, INA310B1 : 20 V/V
- INA310A2, INA310B2 : 50 V/V
- INA310A3, INA310B3 : 100 V/V
- INA310A4, INA310B4 : 200 V/V
- INA310A5, INA310B5 : 500 V/V
- Package options: VSSOP-8
Description for the INA310B
The INA310x is an ultra-precise current sense amplifier that can measure voltage drops across shunt resistors over a wide common-mode range from –4 V to 110 V, independent of supply voltage with an integrated comparator. The high precision current measurement accuracy is achieved through a combination of low offset voltage (20 µV, maximum), small gain error (0.15%, maximum) and a high DC CMRR (160 dB, typical). The INA310x has a high signal bandwidth of 1.3 MHz designed for high voltage DC current measurements and high-speed applications like fast overcurrent protection.
The INA310x incorporates an open-drain comparator and internal reference that provides a 0.6 V threshold. An external resistive divider sets the current trip point. The comparator includes a latching capability that can be made transparent by grounding (or leaving open) the RESET pin.
The INA310x operates from a single 2.7 V to 20 V supply and draws 1.6 mA of supply current. The INA310x is available in five gain options: 20 V/V, 50 V/V, 100 V/V, 200 V/V, and 500 V/V. These gain options address a wide dynamic range of current-sensing applications.
The INA310x is specified over an operating temperature range of −40°C to +125°C and is offered in a space-saving 8-pin VSSOP package.