Overview
The INA159AIDGKR is a high-speed, precision difference amplifier manufactured by Texas Instruments. This component is designed to interface ±10V signals to single-supply analog-to-digital converters (ADCs), particularly those operating on a single +5V supply. The INA159 features a gain of 1/5, achieved through a precision op amp and a laser-trimmed resistor network, ensuring accurate gain and high common-mode rejection. It operates over an extended industrial temperature range of -40°C to +125°C and is available in an MSOP-8 surface-mount package.
Key Specifications
| Parameter | Min | Max | Unit | |
|---|---|---|---|---|
| Supply Voltage | - | - | 5.5 | V |
| Operating Voltage Range | 1.8 | - | 5.5 | V |
| Gain Accuracy | - | - | ±0.024% | % |
| Bandwidth | - | 1.5 | - | MHz |
| Slew Rate | - | 15 | - | V/µs |
| Offset Voltage | - | - | ±100µV | µV |
| Offset Drift | - | - | ±1.5µV/°C | µV/°C |
| Input Common-Mode Voltage Range | Beyond supply rails | - | - | - |
| Quiescent Current | 1.1 | 1.5 | - | mA |
| Operating Temperature Range | -40 | - | 125 | °C |
| Package Type | - | - | MSOP-8 | - |
Key Features
- Gain of 0.2: Interfaces ±10V signals to single-supply ADCs.
- Gain Accuracy: ±0.024% (max).
- Wide Bandwidth: 1.5MHz.
- High Slew Rate: 15V/µs.
- Low Offset Voltage: ±100µV.
- Low Offset Drift: ±1.5µV/°C.
- Single-Supply Operation: Down to 1.8V.
- Extended Industrial Temperature Range: -40°C to +125°C.
- On-Chip Resistors: Laser-trimmed for accurate gain and high common-mode rejection.
Applications
- Industrial Process Controls: Suitable for precision measurement and control in industrial environments.
- Instrumentation: Ideal for various instrumentation applications requiring high accuracy and stability.
- Differential to Single-Ended Conversion: Converts differential signals to single-ended signals efficiently.
- Audio Line Receivers: Used in audio applications where signal integrity and low noise are critical.
Q & A
- What is the primary function of the INA159AIDGKR?
The INA159AIDGKR is a difference amplifier designed to interface ±10V signals to single-supply analog-to-digital converters (ADCs).
- What is the gain accuracy of the INA159AIDGKR?
The gain accuracy is ±0.024% (max).
- What is the bandwidth of the INA159AIDGKR?
The bandwidth is 1.5MHz.
- What is the slew rate of the INA159AIDGKR?
The slew rate is 15V/µs.
- What is the operating voltage range of the INA159AIDGKR?
The operating voltage range is from 1.8V to 5.5V.
- What is the operating temperature range of the INA159AIDGKR?
The operating temperature range is -40°C to +125°C.
- What package type is the INA159AIDGKR available in?
The INA159AIDGKR is available in an MSOP-8 surface-mount package.
- What are some common applications of the INA159AIDGKR?
Common applications include industrial process controls, instrumentation, differential to single-ended conversion, and audio line receivers.
- How does the INA159AIDGKR handle input common-mode voltage?
The input common-mode voltage range extends beyond the positive and negative supply rails.
- What is the quiescent current of the INA159AIDGKR?
The quiescent current is 1.1mA to 1.5mA.
