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THS4503ID

TITHS4503ID

Texas Instruments
Differential Amplifier 1 Circuit Differential 8-SOIC
Active285 in stock

Overview

The THS4503ID is a high-performance, fully differential amplifier designed for high-speed signal conditioning. It features a wide 370 MHz bandwidth and an exceptionally high slew rate of 2800 V/us, making it ideal for driving high-resolution analog-to-digital converters (ADCs). The device operates on a supply range of 4.5V to 16.5V and includes independent output common-mode control.

Why Choose This Part

The component offers a massive 2800 V/us slew rate which minimizes large-signal distortion in pulse-based applications. Its fully differential architecture provides superior rejection of common-mode noise and harmonic distortion compared to traditional operational amplifiers. Additionally, the separate VOCM pin allows for easy level-shifting of the output signal to match ADC input requirements.

Applications

ADC Preamplifier
Driving high-linearity differential ADCs in data acquisition systems where low distortion is critical.
Single-Ended to Differential Conversion
Converting single-ended signals from sensors or RF stages into differential signals for improved noise immunity.
Differential Line Driver
Transmitting high-speed signals over twisted-pair cabling with high common-mode rejection.
Active Filtering
Implementing high-order differential low-pass or band-pass filters in wireless communication receiver chains.

Key Specifications

Slew Rate 2800V/us
Output Type Differential
Mounting Type Surface Mount
-3db Bandwidth 370 MHz
Amplifier Type Differential
Package / Case 8-SOIC (0.154", 3.90mm Width)
Current - Supply 23mA
Number of Circuits 1
Current - Input Bias 4 uA
Operating Temperature -40degC ~ 85degC
Gain Bandwidth Product 300 MHz
Voltage - Input Offset 1 mV
Supplier Device Package 8-SOIC
Current - Output / Channel 120 mA
Voltage - Supply Span (Max) 15 V
Voltage - Supply Span (Min) 4.5 V

Getting Started

To evaluate this amplifier, engineers can use the THS4503EVM evaluation module which provides BNC connectors for high-speed signal testing. Ensure high-frequency PCB layout techniques are followed, including the use of a solid ground plane and decoupling capacitors placed as close as possible to the 8-SOIC package pins. Thermal management is important as the device draws up to 34mA of supply current.

Also Consider

ADA4932-1 Analog Devices - A high-performance differential amplifier with lower power requirements for 12-bit to 16-bit ADC driving.