Overview
The TLC272CDR is a precision dual operational amplifier manufactured by Texas Instruments. It utilizes Texas Instruments' silicon-gate LinCMOS technology, which offers superior offset voltage stability compared to conventional metal-gate processes. This device combines a wide range of input offset voltage grades with low offset voltage drift, high input impedance, low noise, and speeds similar to those of general-purpose BiFET devices. The TLC272CDR is ideal for applications requiring high precision and reliability, such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Product Type | Precision Amplifiers |
| Number of Channels | 2 Channel |
| Gain Bandwidth Product | 2.2 kHz |
| Slew Rate | 5.3 V/us |
| Input Offset Voltage | 1.1 mV |
| Input Bias Current | 0.7 pA |
| Supply Voltage Range | 3 ~ 16V |
| Operating Supply Current | 1.9 mA |
| Output Current per Channel | 30 mA |
| Common Mode Rejection Ratio | 80 dB |
| Input Voltage Noise Density | 25 nV/sqrt Hz |
| Operating Temperature | -40°C ~ +85°C |
| Amplifier Type | Low Offset Amplifier |
| Input Type | Rail-to-Rail |
| Power Dissipation | 725 mW |
| Common Mode Voltage | Negative Rail – 0.2V to Positive Rail -1V |
| Mounting Style | SMD/SMT |
| Package/Case | SOIC-8 |
Key Features
- Trimmed Offset Voltage: Low input offset voltage, with the TLC277 offering up to 500 µV max at 25°C.
- Low Offset Voltage Drift: Typically 0.1 µV/month, including the first 30 days.
- Wide Supply Voltage Range: Operates from 3 V to 16 V over various temperature ranges.
- Single-Supply Operation: Suitable for remote and inaccessible battery-powered applications.
- High Input Impedance: Typically 10^12 Ω.
- Low Noise: Typically 25 nV/Hz at f = 1 kHz.
- Output Voltage Range Includes Negative Rail: Extends to the negative rail.
- ESD-Protection Circuitry: Protects against functional failures up to 2000 V as tested under MIL-STD-883C, Method 3015.2.
- Designed-In Latch-Up Immunity: Inputs and outputs designed to withstand 100-mA surge currents without sustaining latch-up.
Applications
- Transducer Interfacing: Ideal for interfacing with various transducers due to its high input impedance and low noise.
- Analog Calculations: Suitable for analog calculations and amplifier blocks.
- Active Filters: Can be used in the design of active filters.
- Signal Buffering: Effective for signal buffering applications.
- Servo Amplifiers: Used in servo amplifier applications.
- Power Supplies: Can be integrated into power supply designs.
- Compact Disc and VCR Systems: Suitable for use in compact disc and VCR systems.
Q & A
- What is the input offset voltage of the TLC272CDR?
The input offset voltage of the TLC272CDR is typically 1.1 mV.
- What is the supply voltage range for the TLC272CDR?
The TLC272CDR operates from 3 V to 16 V over various temperature ranges.
- What is the slew rate of the TLC272CDR?
The slew rate of the TLC272CDR is 5.3 V/us.
- Does the TLC272CDR have ESD protection?
Yes, the TLC272CDR incorporates internal ESD-protection circuits that prevent functional failures up to 2000 V as tested under MIL-STD-883C, Method 3015.2.
- What is the common-mode input voltage range of the TLC272CDR?
The common-mode input voltage range includes the negative rail and extends from –0.2V to the positive rail –1V.
- What is the operating temperature range for the TLC272CDR?
The operating temperature range for the TLC272CDR is –40°C to +85°C.
- What type of packaging is available for the TLC272CDR?
The TLC272CDR is available in an SOIC-8 package.
- Is the TLC272CDR suitable for single-supply operation?
Yes, the TLC272CDR is suitable for single-supply operation, making it ideal for remote and inaccessible battery-powered applications.
- What are some common applications of the TLC272CDR?
Common applications include transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
- Does the TLC272CDR have latch-up immunity?
Yes, the TLC272CDR has designed-in latch-up immunity, with inputs and outputs designed to withstand 100-mA surge currents without sustaining latch-up.
