ADI LTC1668IG

Current - Unbuffered并联±5V-40°C ~ 85°C

Overview

The LTC®1666/LTC1667/LTC1668IG are 12-/14-/16-bit, 50Msps differential current output DACs implemented on a high performance BiCMOS process with laser trimmed, thin-film resistors. The combination of a novel currentsteering architecture and a high performance process produces DACs with exceptional AC and DC performance. The LTC1668IG is the first 16-bit DAC in the marketplace to exhibit an SFDR (spurious free dynamic range) of 87dB for an output signal frequency of 1MHz. Operating from ±5V supplies, the LTC1666/LTC1667/ LTC1668IG can be configured to provide full-scale output currents up to 10mA. The differential current outputs of the DACs allow single-ended or true differential operation. The –1V to 1V output compliance of the LTC1666/ LTC1667/LTC1668IG allows the outputs to be connected directly to external resistors to produce a differential output voltage without degrading the converter’s linearity. Alternatively, the outputs can be connected to the summing junction of a high speed operational amplifier, or to a transformer. The LTC1666/LTC1667/LTC1668IG are pin compatible and are available in a 28-pin SSOP and are fully specified over the industrial temperature range.

■ Small Package: 28-Pin SSOP

Features

Bulk Package
SSOP package
28 pins
1 channels

Surface Mount Mounting Type

Applications

There are a lot of Analog Devices, Inc.
LTC1668IG Digital to Analog Converters (DAC) applications.

• Data Acquisition Systems
• Calibration
• Motor Control
• Data Distribution System
• Digital Potentiometer
• Software Radio
• Wireless infrastructure:
• WCDMA, CDMA2000, TD-SCDMA, WiMAX
• Wideband communications:
• LMDS/MMDS, point-to-point