Overview
The OPA277P from Texas Instruments is a high-precision operational amplifier designed for demanding applications that require high accuracy and low parametric drift. This device is part of the OPAx277 series, which replaces industry standards like the OP-177, offering improved noise performance, wider output voltage swing, and twice the speed with half the quiescent current.
Key Specifications
| Parameter | Value |
|---|---|
| Brand | Texas Instruments |
| Amplifier Type | Precision |
| Mounting Type | Through Hole |
| Package Type | PDIP |
| Power Supply Type | Dual |
| Number of Channels per Chip | 1 |
| Pin Count | 8 |
| Typical Gain Bandwidth Product | 1 MHz |
| Typical Dual Supply Voltage | ±12 V, ±15 V, ±3 V, ±5 V, ±9 V |
| Typical Slew Rate | 0.8 V/µs |
| Maximum Operating Temperature | +85 °C |
| Minimum Operating Temperature | -40 °C |
| Rail to Rail | No |
| Typical Voltage Gain | 140 dB |
| Dimensions | 9.81 x 6.35 x 4.57 mm |
| Typical Input Voltage Noise Density | 12 nV/√Hz |
Key Features
- Ultra-low offset voltage: 10 µV
- Ultra-low drift: ±0.1 µV/°C
- High open-loop gain: 134 dB
- High common-mode rejection: 140 dB
- High power-supply rejection: 130 dB
- Low bias current: 1-nA maximum
- Wide supply range: ±2 V to ±18 V
- Low quiescent current: 800 µA/amplifier
- Single, dual, and quad versions available
- Provides external trim pins for special applications
- Unity-gain stable and free from phase inversion and overload problems
Applications
The OPA277P is suitable for a wide range of applications that demand high precision and low noise, including:
- Precision instrumentation and measurement systems
- Medical equipment and diagnostic devices
- Aerospace and defense systems
- High-end audio equipment
- Industrial control and automation systems
Q & A
- What is the typical gain bandwidth product of the OPA277P?
The typical gain bandwidth product of the OPA277P is 1 MHz.
- What are the typical dual supply voltages for the OPA277P?
The typical dual supply voltages for the OPA277P are ±12 V, ±15 V, ±3 V, ±5 V, and ±9 V.
- What is the maximum operating temperature of the OPA277P?
The maximum operating temperature of the OPA277P is +85 °C.
- Does the OPA277P have rail-to-rail output capability?
No, the OPA277P does not have rail-to-rail output capability.
- What is the typical input voltage noise density of the OPA277P?
The typical input voltage noise density of the OPA277P is 12 nV/√Hz.
- What are the key features of the OPA277P in terms of offset voltage and drift?
The OPA277P features ultra-low offset voltage (10 µV) and ultra-low drift (±0.1 µV/°C).
- Is the OPA277P available in single, dual, and quad versions?
- What is the quiescent current of the OPA277P?
The quiescent current of the OPA277P is 800 µA per amplifier.
- Does the OPA277P provide external trim pins?
- What are some common applications of the OPA277P?
The OPA277P is commonly used in precision instrumentation, medical equipment, aerospace and defense systems, high-end audio equipment, and industrial control systems.
