Overview
The TLC2252AQDRQ1 is a dual operational amplifier from Texas Instruments, part of the TLC2252A-Q1 series. These devices are known for their high input impedance, low noise, and rail-to-rail output performance, making them ideal for small-signal conditioning in high-impedance sources such as piezoelectric transducers. The TLC2252A-Q1 family is characterized by its micropower operation, consuming only 35 µA of supply current per channel, which is suitable for battery-powered applications. The amplifiers are fully specified for both single-supply and split-supply operation and offer improved noise performance compared to previous generations of CMOS amplifiers.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit |
|---|---|---|---|
| Number of Channels | 2 | ||
| Input Bias Current | 1 pA | 60 pA | pA |
| Input Offset Voltage at 25°C | 200 µV | 850 µV | µV |
| Input Offset Voltage Drift | 0.5 µV/°C | µV/°C | |
| Common-Mode Rejection Ratio (CMRR) | 83 dB | 70 dB | dB |
| Gain-Bandwidth Product (GBW) | 0.2 MHz | MHz | |
| Slew Rate | 0.12 V/µs | V/µs | |
| Supply Current per Channel | 35 µA | 62.5 µA | µA |
| Operating Temperature Range | -40 to 125 °C | °C | |
| Total Supply Voltage | 4.4 V to 16 V | V | |
| Noise Voltage at 1 kHz | 19 nV/√Hz | nV/√Hz |
Key Features
- Qualified for Automotive Applications
- ESD Protection exceeds 2000 V per MIL-STD-883, Method 3015, and 150 V using Machine Model (C = 200 pF, R = 0)
- Rail-to-Rail Output Performance
- Low Noise: 19 nV/Hz at f = 1 kHz
- Low Input Bias Current: 1 pA typical
- Very Low Power Consumption: 35 µA per channel typical
- Common-Mode Input Voltage Range Includes Negative Rail
- Low Input Offset Voltage: 850 µV maximum at 25°C
- Macromodel Included
- Performance Upgrades for the TS27L2/L4 and TLC27L2/L4
Applications
The TLC2252AQDRQ1 is suitable for a variety of applications due to its low power consumption and high performance characteristics. These include:
- Small-signal conditioning for high-impedance sources such as piezoelectric transducers.
- Battery-powered applications, including hand-held monitoring and remote-sensing devices.
- Interfacing with analog-to-digital converters (ADCs) due to its rail-to-rail output feature.
- Precision applications requiring low input offset voltage and low noise.
- Upgrades to the TLC27L2/L4 or TS27L2/L4 in standard designs.
Q & A
- What is the typical input bias current of the TLC2252AQDRQ1?
The typical input bias current is 1 pA.
- What is the maximum input offset voltage at 25°C for the TLC2252AQDRQ1?
The maximum input offset voltage at 25°C is 850 µV.
- What is the gain-bandwidth product (GBW) of the TLC2252AQDRQ1?
The gain-bandwidth product (GBW) is 0.2 MHz.
- What is the operating temperature range of the TLC2252AQDRQ1?
The operating temperature range is -40 to 125 °C.
- What is the typical supply current per channel for the TLC2252AQDRQ1?
The typical supply current per channel is 35 µA.
- Does the TLC2252AQDRQ1 have ESD protection?
Yes, it exceeds 2000 V per MIL-STD-883, Method 3015, and 150 V using Machine Model (C = 200 pF, R = 0).
- What is the noise voltage at 1 kHz for the TLC2252AQDRQ1?
The noise voltage at 1 kHz is 19 nV/√Hz.
- Is the TLC2252AQDRQ1 suitable for automotive applications?
Yes, it is qualified for automotive applications.
- What is the slew rate of the TLC2252AQDRQ1?
The slew rate is 0.12 V/µs.
- Can the TLC2252AQDRQ1 be used in battery-powered devices?
Yes, it is suitable for battery-powered applications due to its low power consumption.
