Overview
The INA166UA/2K5 is a very low-noise, low-distortion, monolithic instrumentation amplifier produced by Texas Instruments. It features current-feedback circuitry that achieves very wide bandwidth and excellent dynamic response over a wide range of gain. This amplifier is ideal for low-level signals such as those from microphones or hydrophones and is also beneficial in various industrial, instrumentation, and medical applications due to its low noise and wide bandwidth.
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 | VIN – VIN = 0V | V | |||
| Power Supply Voltage | ±18V | V | |||
| Operating Temperature Range | –40°C | +85°C | |||
| 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
- SO-14 Surface-Mount Package
- Unique distortion cancellation circuitry
Applications
- Moving-Coil Transducer Amplifiers
- Differential Receivers
- Bridge Transducer Amplifiers
- Microphone and Hydrophone Preamplifiers
- Industrial, Instrumentation, and Medical Applications
Q & A
- What is the primary application of the INA166UA/2K5? The INA166UA/2K5 is primarily used for amplifying low-level signals such as those from microphones or hydrophones, and it is also used in various industrial, instrumentation, and medical applications.
- What is the noise performance of the INA166UA/2K5? The INA166UA/2K5 has a voltage noise of 1.3nV/√Hz at 1kHz and a current noise of 0.8pA/√Hz at 1kHz.
- What is the bandwidth of the INA166UA/2K5? The INA166UA/2K5 has a wide bandwidth of 450kHz.
- How is the gain set for the INA166UA/2K5? The gain of the INA166UA/2K5 is set using an external resistor.
- What is the supply voltage range for the INA166UA/2K5? The INA166UA/2K5 operates over a wide supply voltage range of ±4.5V to ±18V.
- What is the common-mode rejection ratio (CMRR) of the INA166UA/2K5? The INA166UA/2K5 has a high CMRR of greater than 100dB.
- In what package is the INA166UA/2K5 available? The INA166UA/2K5 is available in a SO-14 surface-mount package.
- What is the operating temperature range of the INA166UA/2K5? The INA166UA/2K5 operates over a temperature range of –40°C to +85°C.
- How does the INA166UA/2K5 reduce distortion? The INA166UA/2K5 features unique distortion cancellation circuitry that reduces distortion to extremely low levels, even in high gain.
- Is the INA166UA/2K5 sensitive to electrostatic discharge (ESD)? Yes, the INA166UA/2K5 is sensitive to ESD and requires appropriate handling precautions to avoid damage.
