Overview
The INA159AIDGKTG4, produced by Texas Instruments, is a high slew rate, precision difference amplifier. It is designed with a gain of 1/5, making it particularly useful for interfacing ±10V signals to single-supply analog-to-digital converters (ADCs), especially those operating on a single +5V supply. The device consists of a precision op amp integrated with a precision resistor network, which is laser-trimmed for accurate gain and high common-mode rejection. The INA159AIDGKTG4 operates on a single or split supply from +1.8V to +5.5V and is specified for operation over the extended industrial temperature range of −40°C to +125°C.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage | 5.5 | V | ||
| Signal Input Terminals Voltage | ±30 | V | ||
| Offset Voltage | ±100 | ±500 | µV | |
| Offset Voltage Drift | ±1.5 | µV/°C | ||
| Gain Accuracy | ±0.024% | |||
| Bandwidth | 1.5 | MHz | ||
| Slew Rate | 15 | V/µs | ||
| Operating Temperature | −40 | 125 | °C | |
| Storage Temperature | −65 | 150 | °C | |
| Junction Temperature | 150 | °C | ||
| ESD Rating (Human Body Model) | 4000 | V | ||
| ESD Rating (Charged Device Model) | 1000 | V |
Key Features
- High Slew Rate: 15V/µs, ensuring rapid response to input changes.
- Low Offset Voltage: ±100µV, and low offset drift of ±1.5µV/°C, providing high accuracy.
- Wide Bandwidth: 1.5MHz, suitable for high-frequency applications.
- Single-Supply Operation: Down to 1.8V, making it versatile for various power supply configurations.
- Precision Resistor Network: Laser-trimmed for accurate gain and high common-mode rejection.
- Rail-to-Rail Common-Mode Voltage Capability: Allows the use of ±10V inputs into a circuit biased to 1/2 of a 5V reference.
- Glitch- and Transition-Free Performance: Eliminates the input offset transition region typical of most rail-to-rail complementary stage operational amplifiers.
Applications
- Industrial Process Controls: Suitable for precision measurement and control in industrial environments.
- Instrumentation: Ideal for various instrumentation applications requiring high accuracy and precision.
- Differential to Single-Ended Conversion: Converts differential signals to single-ended signals efficiently.
- Audio Line Receivers: Used in audio applications where high fidelity and low distortion are critical.
Q & A
- What is the primary function of the INA159AIDGKTG4?
The INA159AIDGKTG4 is a precision difference amplifier designed to interface ±10V signals to single-supply analog-to-digital converters (ADCs).
- What is the gain of the INA159AIDGKTG4?
The gain of the INA159AIDGKTG4 is 1/5 or 0.2.
- What is the slew rate of the INA159AIDGKTG4?
The slew rate of the INA159AIDGKTG4 is 15V/µs.
- What is the operating temperature range of the INA159AIDGKTG4?
The operating temperature range is −40°C to +125°C.
- What is the typical bandwidth of the INA159AIDGKTG4?
The typical bandwidth is 1.5MHz.
- What is the offset voltage of the INA159AIDGKTG4?
The offset voltage is ±100µV.
- Can the INA159AIDGKTG4 operate on a single supply?
Yes, it can operate on a single supply from +1.8V to +5.5V.
- What is the common-mode rejection ratio (CMRR) of the INA159AIDGKTG4?
The CMRR is high due to the precision resistor network, but specific values vary with frequency.
- What are some typical applications of the INA159AIDGKTG4?
Industrial process controls, instrumentation, differential to single-ended conversion, and audio line receivers.
- What is the package type of the INA159AIDGKTG4?
The package type is VSSOP-8 (DGK).
