Overview
The TLV2172IDR from Texas Instruments is a dual, 36-V, 10-MHz, low-power operational amplifier designed for cost-sensitive applications. This device is part of the TLVx172 family, which features electromagnetic interference (EMI)-hardened, single-supply, low-noise operational amplifiers. The TLV2172IDR is known for its high performance, low power consumption, and robust specifications, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Supply Voltage Range | 4.5 V to 36 V (±2.25 V to ±18 V) | V |
| Gain Bandwidth | 10 MHz | Hz |
| Slew Rate | 10 V/μs | V/μs |
| Input Offset Voltage | 1.7 mV | mV |
| Input Offset Voltage Drift | ±1 μV/°C | μV/°C |
| Quiescent Current per Amplifier | 1.6 mA | mA |
| Common-Mode Rejection Ratio (CMRR) | 116 dB | dB |
| Input Bias Current | 10 pA | pA |
| Operating Temperature Range | –40°C to +125°C | °C |
| Noise Voltage | 9 nV/√Hz | nV/√Hz |
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.
- Input Range Includes Negative Supply: The input can operate 100 mV below the negative rail and within 2 V of the positive rail.
- Rail-to-Rail Output: Provides full output swing, maximizing dynamic range.
- High Common-Mode Rejection Ratio (CMRR): 116 dB, ensuring minimal common-mode noise.
- Low Input Bias Current: 10 pA, reducing the impact on input signals.
- Phase-Reversal Protection: Internal protection against phase reversal when inputs are driven beyond the linear common-mode range.
Applications
- TFT-LCD Drive Circuits: Suitable for driving LCD displays due to its rail-to-rail output and low noise.
- Touch-Screen Displays: Ideal for touch-screen applications requiring high signal integrity.
- Wireless LANs: Used in wireless communication systems for signal amplification and filtering.
- Portable Instrumentation: Suitable for battery-powered instruments due to its low power consumption.
- Analog-to-Digital Converter (ADC) Buffers: Acts as a buffer to improve the performance of ADCs.
- Active Filters: Used in active filter circuits to enhance signal quality.
- Line Drivers or Line Receivers: Employed in communication systems for driving and receiving signals.
- Ultrasound: Used in medical ultrasound equipment for signal amplification.
- Currency Counters: Applied in financial equipment for accurate signal processing.
- Transducer Amplifiers: Suitable for amplifying signals from various transducers.
Q & A
- What is the supply voltage range of the TLV2172IDR?
The TLV2172IDR can operate on supplies ranging from 4.5 V (±2.25 V) to 36 V (±18 V).
- What is the gain bandwidth of the TLV2172IDR?
The gain bandwidth of the TLV2172IDR is 10 MHz.
- What is the slew rate of the TLV2172IDR?
The slew rate of the TLV2172IDR is 10 V/μs.
- What is the typical input offset voltage of the TLV2172IDR?
The typical input offset voltage is 1.7 mV.
- Is the TLV2172IDR EMI-hardened?
Yes, the TLV2172IDR is designed to be EMI-hardened, making it robust against electromagnetic interference.
- What is the common-mode rejection ratio (CMRR) of the TLV2172IDR?
The CMRR is typically 116 dB.
- What is the quiescent current per amplifier for the TLV2172IDR?
The quiescent current per amplifier is 1.6 mA.
- What are some common applications of the TLV2172IDR?
Common 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.
- Does the TLV2172IDR have phase-reversal protection?
Yes, the TLV2172IDR has internal phase-reversal protection.
- What is the operating temperature range of the TLV2172IDR?
The operating temperature range is from –40°C to +125°C.
