Overview
The INA217AIP, produced by Texas Instruments, is a low-noise, low-distortion, monolithic instrumentation amplifier. It is designed to replace the SSM2017 and is ideal for applications involving low-level audio signals, such as balanced low-impedance microphones. The device utilizes current-feedback circuitry, enabling it to achieve wide bandwidth and excellent dynamic response over a wide range of gain. It is particularly suited for professional microphone preamps, moving-coil transducer amplifiers, differential receivers, and bridge transducer amplifiers due to its superior noise performance and low distortion characteristics.
Key Specifications
| Parameter | Test Conditions | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Supply Voltage, V+ to V– | V | ±4.5 | ±18 | ||
| Input Voltage Range | (V–) – 0.5V to (V+) + 0.5V | V | |||
| Operating Temperature | °C | –40 | 85 | ||
| Gain Range | V/V | 1 | 10000 | ||
| Gain Error (G = 100) | % | ±0.2 | |||
| Bandwidth (G = 100) | kHz | 800 | |||
| THD+N (G = 100, f = 1 kHz) | % | 0.004 | |||
| Voltage Noise (RSOURCE = 0Ω, fO = 1kHz) | nV/√Hz | 1.3 | |||
| Common-Mode Rejection Ratio (CMRR) | dB | 100 | 116 |
Key Features
- Low Noise: 1.3 nV/√Hz at 1 kHz
- Low THD+N: 0.004% at 1 kHz, G = 100
- Wide Bandwidth: 800 kHz at G = 100
- Wide Supply Range: ±4.5V to ±18V
- High CMR: > 100 dB
- Gain Set With External Resistor: Gain equation G = 1 + 10k/RG
- DIP-8 and SOL-16 Widebody Packages: Compatible with SSM2017 pinouts
Applications
- Professional Microphone Preamps: Ideal for low-level audio signals from balanced low-impedance microphones
- Moving-coil Transducer Amplifiers: Suitable for amplifying signals from moving-coil transducers
- Differential Receivers: Used in applications requiring differential signal reception
- Bridge Transducer Amplifiers: Applicable in bridge transducer circuits for precise measurement
Q & A
- What is the primary application of the INA217AIP?
The INA217AIP is primarily used in professional microphone preamps, moving-coil transducer amplifiers, differential receivers, and bridge transducer amplifiers due to its low noise and wide bandwidth characteristics.
- What is the gain range of the INA217AIP?
The gain range of the INA217AIP is from 1 to 10,000, set by an external resistor using the gain equation G = 1 + 10k/RG.
- What is the typical voltage noise of the INA217AIP at 1 kHz?
The typical voltage noise of the INA217AIP at 1 kHz is 1.3 nV/√Hz.
- What is the common-mode rejection ratio (CMRR) of the INA217AIP?
The CMRR of the INA217AIP is greater than 100 dB.
- What are the available package options for the INA217AIP?
The INA217AIP is available in DIP-8 and SOL-16 widebody packages, compatible with the SSM2017 pinouts.
- What is the operating temperature range of the INA217AIP?
The operating temperature range of the INA217AIP is from –40°C to 85°C.
- What is the typical THD+N of the INA217AIP at G = 100 and f = 1 kHz?
The typical THD+N of the INA217AIP at G = 100 and f = 1 kHz is 0.004%.
- How is the gain of the INA217AIP set?
The gain of the INA217AIP is set using an external resistor, RG, according to the gain equation G = 1 + 10k/RG.
- What is the bandwidth of the INA217AIP at G = 100?
The bandwidth of the INA217AIP at G = 100 is 800 kHz.
- Is the INA217AIP still in production?
No, the INA217AIP is obsolete and no longer manufactured.
