Overview
The TLC272CPSG4 is a precision dual operational amplifier produced by Texas Instruments. It is part of the TLC272 and TLC277 series, which combine a wide range of input offset voltage grades with low offset voltage drift, high input impedance, low noise, and speeds approaching those of general-purpose BiFET devices. These amplifiers utilize Texas Instruments' silicon-gate LinCMOS technology, providing offset voltage stability that exceeds conventional metal-gate processes.
The TLC272 series offers four offset voltage grades, ranging from the low-cost TLC272 (10 mV) to the high-precision TLC277 (500 µV). This makes them ideal for applications previously reserved for BiFET and NFET products, including transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Offset Voltage | 10 mV (TLC272), 500 µV (TLC277) | VDD = 5 V, 25°C |
| Input Offset Voltage Drift | Typically 0.1 µV/Month (first 30 days) | |
| Supply Voltage Range | 0°C to 70°C: 3 V to 16 V, 40°C to 85°C: 4 V to 16 V, 55°C to 125°C: 4 V to 16 V | |
| Common-Mode Input Voltage Range | Extends below the negative rail (C-suffix, I-suffix types) | |
| Noise | Typically 25 nV/Hz at f = 1 kHz | |
| Output Voltage Range | Includes negative rail | |
| Input Impedance | 10^12 Ω (Typical) | |
| Operating Temperature Range | C-suffix: 0°C to 70°C, I-suffix: 40°C to 85°C, M-suffix: 55°C to 125°C | |
| Package | PDIP (P), SOIC (D), etc. | |
| Pins | 8 | |
| ESD Protection | Up to 2000 V (MIL-STD-883C, Method 3015.2) |
Key Features
- Trimmed Offset Voltage: Available in various grades from 10 mV to 500 µV.
- Low Offset Voltage Drift: Typically 0.1 µV/Month.
- Wide Range of Supply Voltages: Operates from 3 V to 16 V over specified temperature ranges.
- Single-Supply Operation: Suitable for remote and inaccessible battery-powered applications.
- High Input Impedance: 10^12 Ω (Typical).
- Low Noise: Typically 25 nV/Hz at f = 1 kHz.
- Output Voltage Range Includes Negative Rail.
- ESD-Protection Circuitry: Up to 2000 V (MIL-STD-883C, Method 3015.2).
- Designed-In Latch-Up Immunity: Inputs and outputs can withstand 100-mA surge currents without sustaining latch-up.
- Small-Outline Package Option: Available in tape and reel for high-density system applications.
Applications
- Transducer Interfacing: Ideal for interfacing with various types of transducers.
- Analog Calculations: Suitable for analog computation and signal processing.
- Amplifier Blocks: Can be used in various amplifier configurations.
- Active Filters: Used in the design of active filters due to their high input impedance and low noise.
- Signal Buffering: Effective for buffering signals in analog circuits.
- Battery-Powered Applications: Suitable for remote and inaccessible battery-powered applications due to single-supply operation.
Q & A
- What is the input offset voltage range for the TLC272 and TLC277?
The input offset voltage ranges from 10 mV for the TLC272 to 500 µV for the TLC277.
- What is the typical input offset voltage drift for these amplifiers?
The typical input offset voltage drift is 0.1 µV/Month, including the first 30 days.
- What is the operating temperature range for the TLC272CPSG4?
The operating temperature range depends on the suffix: C-suffix (0°C to 70°C), I-suffix (40°C to 85°C), and M-suffix (55°C to 125°C).
- What is the supply voltage range for these operational amplifiers?
The supply voltage range is from 3 V to 16 V over specified temperature ranges.
- Do these amplifiers have ESD protection?
Yes, they have internal ESD-protection circuits that can withstand up to 2000 V (MIL-STD-883C, Method 3015.2).
- What is the typical noise level for these amplifiers?
The typical noise level is 25 nV/Hz at f = 1 kHz.
- What is the input impedance of the TLC272 and TLC277?
The input impedance is typically 10^12 Ω.
- Can these amplifiers operate on a single supply?
Yes, they are suitable for single-supply operation, making them ideal for battery-powered applications.
- What are some common applications for the TLC272 and TLC277?
Common applications include transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
- Are these amplifiers available in different package options?
Yes, they are available in various packages, including PDIP, SOIC, and others, with options for tape and reel for high-density applications.
- Do these amplifiers have latch-up immunity?
Yes, they are designed with latch-up immunity, and their inputs and outputs can withstand 100-mA surge currents without sustaining latch-up.
