Overview
The TLV172IDR, part of the TLVx172 family, is a 36-V, single-supply, low-noise operational amplifier (op amp) produced by Texas Instruments. This EMI-hardened device is designed for a wide range of general-purpose applications, offering high overall performance and stability across various operating conditions. The TLV172IDR operates on supplies ranging from 4.5 V to 36 V and is specified from –40°C to +125°C, making it suitable for diverse environments. Key features include low noise, low offset drift, and high common-mode rejection ratio (CMRR) and power-supply rejection ratio (PSRR), enabling the amplification of microvolt-level signals with high accuracy.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Offset Voltage (VOS) | 1.7 mV | mV |
| Input Offset Voltage Drift (dVOS/dT) | 1 μV/°C | μV/°C |
| Common-Mode Rejection Ratio (CMRR) | 116 dB | dB |
| Power-Supply Rejection Ratio (PSRR) | High | dB |
| Gain Bandwidth Product | 10 MHz | MHz |
| Slew Rate | 10 V/μs | V/μs |
| Quiescent Current per Amplifier | 1.6 mA | mA |
| Input Bias Current | 10 pA | pA |
| Noise Voltage | 9 nV/√Hz | nV/√Hz |
| Operating Supply Voltage Range | 4.5 V to 36 V (±2.25 V to ±18 V) | V |
| Operating Temperature Range | –40°C to +125°C | °C |
Key Features
- Low Noise: 9 nV/√Hz, making it suitable for applications requiring high signal integrity.
- Low Offset Drift: ±1 μV/°C, ensuring stable operation over a wide temperature range.
- EMI-Hardened: Designed to withstand electromagnetic interference, enhancing reliability in noisy environments.
- Rail-to-Rail Output: Allows the output to swing to the supply rails, maximizing dynamic range.
- High CMRR and PSRR: High common-mode rejection ratio and power-supply rejection ratio for accurate signal amplification.
- Low Quiescent Current: 1.6 mA per amplifier, contributing to power efficiency.
- Phase-Reversal Protection: Internal protection against phase reversal when inputs exceed the linear common-mode range.
- Stable with Capacitive Loads: Stable operation with capacitive loads up to 300 pF.
Applications
- TFT-LCD Drive Circuits: Suitable for driving LCD displays due to its high accuracy and stability.
- Touch-Screen Displays: Used in touch-screen applications requiring precise signal handling.
- Wireless LANs: Applicable in wireless communication systems for signal amplification.
- Portable Instrumentation: Ideal for portable instruments due to its low power consumption and high performance.
- Analog-to-Digital Converter (ADC) Buffers: Used as buffers in ADC applications to improve signal quality.
- Active Filters: Employed in active filter circuits for precise signal filtering.
- Line Drivers or Line Receivers: Suitable for driving and receiving signals over long lines.
- Ultrasound: Used in medical ultrasound equipment for signal amplification.
- Currency Counters: Applied in financial equipment for accurate signal processing.
- Transducer Amplifiers: Used to amplify signals from transducers in various applications.
Q & A
- What is the operating supply voltage range of the TLV172IDR?
The TLV172IDR operates on supplies ranging from 4.5 V to 36 V (±2.25 V to ±18 V).
- What is the typical input offset voltage of the TLV172IDR?
The typical input offset voltage is 1.7 mV.
- What is the slew rate of the TLV172IDR?
The slew rate is 10 V/μs.
- Is the TLV172IDR EMI-hardened?
- What is the common-mode rejection ratio (CMRR) of the TLV172IDR?
The CMRR is typically 116 dB.
- What are the typical applications of the TLV172IDR?
Applications include TFT-LCD drive circuits, touch-screen displays, wireless LANs, portable instrumentation, ADC buffers, active filters, line drivers or line receivers, ultrasound, currency counters, and transducer amplifiers.
- What is the quiescent current per amplifier for the TLV172IDR?
The quiescent current per amplifier is 1.6 mA.
- Does the TLV172IDR have phase-reversal protection?
- What is the gain bandwidth product of the TLV172IDR?
The gain bandwidth product is 10 MHz.
- What is the operating temperature range of the TLV172IDR?
The operating temperature range is from –40°C to +125°C.
