LTC2688HUJ-16#PBF

$50.37

Description：IC DAC 16BIT V-OUT 40QFN
Series：-

SKU:7989300c6a5a Category: Digital to Analog Converters (DAC) Brand: Analog Devices Inc.

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Product introduction

Product Detailed Parameters

Description：IC DAC 16BIT V-OUT 40QFN
Series：-
Mfr：Analog Devices Inc.
Package：Tube
Number of Bits：16
Number of D/A Converters：16
Settling Time：28µs
Output Type：Voltage - Buffered
Differential Output：No
Data Interface：SPI
Reference Type：External, Internal
Voltage - Supply, Analog：4.75V ~ 5.25V
Voltage - Supply, Digital：1.71V ~ 5.55V
INL/DNL (LSB)：±3LSB (Max), ±1 (Max)
Architecture：Multiplying DAC
Operating Temperature：-40°C ~ 125°C
Package / Case：40-WFQFN Exposed Pad
Supplier Device Package：40-QFN (6x6)
Mounting Type：Surface Mount
Grade：-
Qualification：-

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LTC2688HUJ-16#PBF

Overview

The LTC2688HUJ-16#PBF is a 16-channel, 16-bit digital-to-analog converter (DAC) featuring SoftSpan technology for independently programmable output ranges. It supports five voltage spans: 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V, and ±15 V. The device integrates a precision 4.096 V reference with a maximum temperature coefficient of ±5 ppm/°C. Key electrical specifications include a maximum integral nonlinearity (INL) of ±3 LSB, guaranteed monotonicity, and rail-to-rail output buffers capable of sourcing or sinking up to 20 mA. It operates on an analog supply (VCC) of 4.75 V to 5.25 V and a digital I/O supply (IOVCC) as low as 1.71 V.

Feature Summary

16 independent channels with full 16-bit resolution across all five SoftSpan output ranges.
Integrated precision 4.096 V reference with ±5 ppm/°C maximum temperature coefficient.
Rail-to-rail output buffers supporting ±20 mA source/sink current capability.
Built-in analog multiplexer for monitoring output voltages, load currents, and junction temperature.

Applications

Optical networking systems
Automatic test equipment
Process control and industrial automation

Procurement Notes

Verify the package type matches the LFCSP-40 specification. Confirm the suffix #PBF indicates lead-free compliance. Ensure the specific grade (H for -40°C to +125°C) aligns with thermal requirements. Check datasheet revision C for updated timing characteristics.

Selection Notes

Select this component when multiple channels require independent bipolar or unipolar voltage programming without external range switching circuitry. The integrated reference simplifies design by reducing external component count. Consider the ±20 mA drive capability for direct load interfacing before adding external amplifiers.

Part Context

This part belongs to the LTC2688 family of SoftSpan DACs. The HUJ-16 designation specifies the 16-bit resolution variant in a 40-lead LFCSP package. Other variants include 12-bit resolutions and WLCSP packaging options within the same functional family.