Overview
The TLC277IP 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 TLC277IP is particularly noted for its high precision, with a trimmed offset voltage of 500 µV maximum at 25°C and a supply voltage range of 4 V to 16 V over a temperature range of -40°C to 85°C. This makes it suitable for a variety of applications, including transducer interfacing, analog calculations, amplifier blocks, active filters, and signal buffering.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Input Offset Voltage | 500 µV Max | At 25°C, VDD = 5 V |
| Input Offset Voltage Drift | Typically 0.1 µV/Month | Including the first 30 days |
| Supply Voltage Range | 4 V to 16 V | -40°C to 85°C |
| Operating Temperature Range | -40°C to 85°C | I-Suffix devices |
| Input Impedance | 10^12 Ω Typ | |
| Noise | Typically 25 nV/√Hz at f = 1 kHz | |
| Common-Mode Input Voltage Range | Extends below the negative rail | C-Suffix and I-Suffix types |
| Output Voltage Range | Includes negative rail | |
| ESD Protection | Up to 2000 V as tested under MIL-STD-883C, Method 3015.2 | |
| Package | 8-pin SOIC (D) |
Key Features
- Trimmed Offset Voltage: 500 µV maximum at 25°C, VDD = 5 V.
- Low Offset Voltage Drift: Typically 0.1 µV/month, including the first 30 days.
- Wide Supply Voltage Range: 4 V to 16 V over the specified temperature range.
- 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.
- Common-Mode Input Voltage Range: Extends below the negative rail (C-Suffix and I-Suffix types).
- Output Voltage Range: Includes the negative rail.
- ESD-Protection Circuitry: Up to 2000 V as tested under MIL-STD-883C, Method 3015.2.
- Latch-Up Immunity: Designed to withstand 100-mA surge currents without sustaining latch-up.
- Packaging Options: Available in small-outline and chip carrier versions for high-density system applications.
Applications
The TLC277IP is versatile and can be used in a variety of applications, including:
- Transducer Interfacing: Ideal for interfacing with sensors and transducers due to its high precision and low noise.
- Analog Calculations: Suitable for analog computation and signal processing.
- Amplifier Blocks: Can be used as building blocks for more complex amplifier circuits.
- Active Filters: Used in the design of active filters due to its high input impedance and low noise.
- Signal Buffering: Effective for buffering signals in various analog circuits.
- Battery-Powered Applications: Suitable for remote and inaccessible battery-powered applications due to its single-supply operation.
Q & A
- What is the maximum input offset voltage of the TLC277IP at 25°C?
500 µV maximum at 25°C, VDD = 5 V.
- What is the typical input offset voltage drift of the TLC277IP?
Typically 0.1 µV/month, including the first 30 days.
- What is the operating temperature range for the TLC277IP?
-40°C to 85°C for I-Suffix devices.
- What is the input impedance of the TLC277IP?
10^12 Ω typical.
- Does the TLC277IP have ESD protection?
- What are the packaging options for the TLC277IP?
Available in small-outline and chip carrier versions for high-density system applications.
- Can the TLC277IP operate on a single supply?
- What is the common-mode input voltage range for the TLC277IP?
Extends below the negative rail (C-Suffix and I-Suffix types).
- What are some typical applications for the TLC277IP?
Transducer interfacing, analog calculations, amplifier blocks, active filters, signal buffering, and battery-powered applications.
- How does the TLC277IP handle latch-up?
Designed to withstand 100-mA surge currents without sustaining latch-up.
