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LTC1668CG

Name: LTC1668CG
Rating: 4.7 (12 reviews)

IC D/A CONV 16BIT 50MSPS 28-SSOP

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規格

Part Status	Obsolete
Base Product Number	LTC1668
Package	28-SSOP (0.209", 5.30mm Width)
Supplier Device Package	28-SSOP
Mounting Type	Surface Mount
Packaging	Tube

概述

Description

LTC1668CG is a digital-to-analog converter (DAC) from Linear Technology (now Analog Devices). It receives a digital word through a serial interface (SPI/MicroWire-compatible) and converts it to an analog output. The device is typically a current-output DAC that requires an external op-amp or resistor network to convert the current to a voltage. The “CG” suffix generally denotes the packaging/temperature grade (lead-free/green packaging and commercial temperature range).
Key points:
- Function: converts digital data to an analog signal
- Interface: serial data input (SPI-like)
- Output: usually current-output (needs external conversion to voltage)
- Packaging/Grade: CG indicates packaging type and commercial/lead-free specs
- Applications: precision control, waveform generation, calibration, instrumentation, and test equipment
For exact resolution, current/voltage output ranges, update timing, power supply rails, and pinout, refer to the LTC1668CG datasheet.

Features

Key features of the LTC1668CG (8-channel, 12-bit DAC array):
- 8 independent 12-bit multiplying DAC (MDAC) channels
- Serial input with SPI-compatible interface; fast, microprocessor-friendly
- Flexible update modes: simultaneous all-channel update or individual channel updates
- External or internal reference; full-scale range set by Vref
- Output ranges: 0 to Vref (unipolar) or ±Vref (bipolar) depending on configuration
- Wide supply range: typically 2.7 V to 5.5 V
- Low glitch energy, monotonic operation, suitable for precision applications
- Power-saving features and optional user shutdown
- RoHS-compliant CG package option (28-pin, suitable for compact designs)
Notes: exact package variants and electrical specs depend on the specific datasheet revision and suffix; consult the LTC1668CG datasheet for precise pinout and electrical parameters.

Package

LTC1668CG comes in a 28-pin Plastic DIP (DIP-28) package; Pb-free/RoHS-compliant.

Pinout

- Pin count: 28 pins (CG denotes lead-free package)
- Function: 8-channel multiplexer-based 12-bit analog-to-digital converter with a serial (SPI-like) interface. It multiplexes eight input channels to a digital output.

Manufacturer

- Manufacturer: Linear Technology Corporation (LTC), currently part of Analog Devices (ADI) after their acquisition.
- Company type: A semiconductor company specializing in analog integrated circuits (e.g., data converters, amplifiers, power management).

Application

Typical application areas for LTC1668CG:
- Multi-channel precision analog output for instrumentation and data acquisition
- Sensor calibration and reference voltage generation
- Process control and automation systems
- Programmable test and measurement equipment
- Waveform and stimulus generation
- Servo/motor-control circuitry
- Laboratory instrumentation and evaluation benches