Overview
The TLC4502ACD is a high-precision, self-calibrating, dual operational amplifier produced by Texas Instruments. It is part of the TLC4502 family, known for its exceptional precision and performance. This CMOS operational amplifier features a single supply rail-to-rail output and is designed for applications requiring high accuracy and stability. The device self-calibrates its input offset voltage to less than 40 µV within the first 300 ms of operation, eliminating the need for noisy and expensive chopper techniques or laser trimming.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package | SOIC (D) | - |
| Pins | 8 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Input Offset Voltage | 10 µV (typ), 40 µV (max) | µV |
| Input Bias Current | 1 pA | pA |
| Open Loop Gain | 120 dB | dB |
| Gain Bandwidth Product | 4.7 MHz | MHz |
| Slew Rate | 2.5 V/µs | V/µs |
| Output Drive Capability | ±50 mA | mA |
| Supply Voltage | 4 V to 6 V, ±2 V to 3 V | V |
| Calibration Time | 300 ms | ms |
Key Features
- Self-calibrating circuitry that digitally trims the input offset voltage to less than 40 µV within the first 300 ms of operation.
- Low input offset voltage drift of 1 µV/°C.
- Low input bias current of 1 pA.
- Rail-to-rail output voltage swing.
- Stable driving of 1000 pF capacitive loads.
- High output drive capability of ±50 mA.
- Lead-free and RoHS compliant.
- Characterized from -55°C to 125°C.
- Available in Q-Temp Automotive and HighRel Automotive applications.
Applications
The TLC4502ACD is ideal for various high-precision applications, including:
- Data acquisition systems.
- Measurement equipment.
- Industrial control applications.
- Portable digital scales.
Q & A
- What is the input offset voltage of the TLC4502ACD?
The input offset voltage is 10 µV typical and 40 µV maximum.
- How does the self-calibration feature work?
The device self-calibrates its input offset voltage to less than 40 µV within the first 300 ms of operation using digital trimming and storing the offset in an integrated successive approximation register (SAR).
- What is the gain bandwidth product of the TLC4502ACD?
The gain bandwidth product is 4.7 MHz.
- What is the slew rate of the TLC4502ACD?
The slew rate is 2.5 V/µs.
- What is the output drive capability of the TLC4502ACD?
The output drive capability is ±50 mA.
- What are the typical applications of the TLC4502ACD?
Typical applications include data acquisition systems, measurement equipment, industrial control applications, and portable digital scales.
- Is the TLC4502ACD lead-free and RoHS compliant?
Yes, the TLC4502ACD is lead-free and RoHS compliant.
- What is the operating temperature range of the TLC4502ACD?
The operating temperature range is 0°C to 70°C.
- Is the TLC4502ACD suitable for automotive applications?
Yes, it is available in Q-Temp Automotive and HighRel Automotive applications.
- What is the calibration time for the TLC4502ACD?
The calibration time is 300 ms.
