Overview
The INA166UA/2K5G4, produced by Texas Instruments, is a low-noise, low-distortion, monolithic instrumentation amplifier. It is designed to provide high performance in amplifying low-level signals, making it ideal for various industrial, instrumentation, and medical applications. The amplifier features current-feedback circuitry, which achieves a very wide bandwidth and excellent dynamic response over a wide range of gain settings.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Gain Error | ±0.3 | ±1 | % | ||
| Gain Temp Drift Coefficient | ±10 | ppm/°C | |||
| Nonlinearity | ±0.005 | % of FS | |||
| Voltage Noise (RSOURCE = 0Ω, fO = 1kHz) | 1.3 | nV/√Hz | |||
| Current Noise (fO = 1kHz) | 0.8 | pA/√Hz | |||
| Input Offset Voltage (VCM = VOUT = 0V) | ±50 | ±250 | µV | ||
| Common-Mode Voltage Range | (V–) – 0.5V to (V+) + 0.5V | V | |||
| Power Supply Voltage | ±4.5V to ±18V | V | |||
| Bandwidth | 450kHz | ||||
| Package | SO-14 Surface Mount |
Key Features
- Low Noise: 1.3nV/√Hz at 1kHz
- Low THD+N: 0.09% at 1kHz
- Wide Bandwidth: 450kHz
- Wide Supply Range: ±4.5V to ±18V
- High CMR: > 100dB
- Gain Set with External Resistor: Allows for flexible gain settings
- SO-14 Surface-Mount Package: Space-saving and suitable for various applications
- Unique Distortion Cancellation Circuitry: Reduces distortion to extremely low levels, even in high gain
Applications
- Moving-Coil Transducer Amplifiers: Ideal for amplifying signals from moving-coil transducers
- Differential Receivers: Suitable for receiving and amplifying differential signals
- Bridge Transducer Amplifiers: Used in bridge transducer applications requiring low noise and high accuracy
- Microphone and Hydrophone Preamplifiers: Excellent for amplifying low-level signals from microphones and hydrophones
Q & A
- What is the typical voltage noise of the INA166UA/2K5G4 at 1kHz?
The typical voltage noise is 1.3nV/√Hz at 1kHz
- What is the bandwidth of the INA166UA/2K5G4?
The bandwidth is 450kHz
- What is the supply voltage range for the INA166UA/2K5G4?
The supply voltage range is ±4.5V to ±18V
- How is the gain of the INA166UA/2K5G4 set?
The gain is set with an external resistor
- What is the package type of the INA166UA/2K5G4?
The package type is SO-14 Surface Mount
- What are some common applications of the INA166UA/2K5G4?
Common applications include moving-coil transducer amplifiers, differential receivers, bridge transducer amplifiers, and microphone and hydrophone preamplifiers
- What is the typical THD+N of the INA166UA/2K5G4 at 1kHz?
The typical THD+N is 0.09% at 1kHz
- What is the common-mode rejection ratio (CMRR) of the INA166UA/2K5G4?
The CMRR is greater than 100dB
- What is the operating temperature range of the INA166UA/2K5G4?
The operating temperature range is –40°C to +85°C
- How does the INA166UA/2K5G4 handle distortion?
The INA166UA/2K5G4 features unique distortion cancellation circuitry that reduces distortion to extremely low levels, even in high gain
