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Product Detailed Parameters
- Description：IC DAC 16BIT A-OUT 64LFCSP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tray
- Number of Bits：16
- Number of D/A Converters：4
- Settling Time：15µs (Typ)
- Output Type：Current - Unbuffered
- Differential Output：No
- Data Interface：SPI, DSP
- Reference Type：External, Internal
- Voltage - Supply, Analog：9V ~ 33V
- Voltage - Supply, Digital：2.7V ~ 5.5V
- INL/DNL (LSB)：-, ±1 (Max)
- Architecture：R-2R
- Operating Temperature：-40°C ~ 105°C
- Package / Case：64-VFQFN Exposed Pad, CSP
- Supplier Device Package：64-LFCSP-VQ (9x9)
- Mounting Type：Surface Mount
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Overview
The AD5757ACPZ is a quad-channel, 16-bit serial input digital-to-analog converter (DAC) with 4 mA to 20 mA current outputs. It features dynamic power control via an on-chip DC-to-DC boost converter that regulates the output driver voltage between 7.4 V and 29.5 V for thermal management. The device supports HART connectivity through dedicated CHART pins on each channel. It operates from a single analog supply of 10.8 V to 33 V and includes user-programmable offset and gain, on-chip diagnostics, and a watchdog timer. The maximum total unadjusted error is ±0.05% FSR with external RSET.
Feature Summary
- Quad-channel 16-bit resolution with guaranteed monotonicity
- Dynamic power control using integrated DC-to-DC converters
- HART network connectivity via dedicated CHART pins
- User-programmable offset and gain calibration
Applications
- Process control systems
- Actuator control loops
- Programmable logic controllers (PLCs)
- HART network connectivity applications
Procurement Notes
Verify the package type corresponds to the LFCSP variant indicated by the suffix. Confirm the specific revision level required for your design, as specifications such as thermal impedance may vary between revisions. Ensure compatibility with the intended SPI interface standards.
Selection Notes
Select this component when multiple isolated current loops are required in a compact form factor. The internal DC-to-DC converters simplify thermal design by regulating output driver voltage. Consider the need for HART communication; if not required, alternative models without CHART pins may be more cost-effective.
Part Context
The AD5757 belongs to a family of precision DACs including the AD5755 and AD5755-1. Companion products include the AD5700 HART modem and ADR445 external references. It serves as a high-performance solution for industrial analog output modules requiring robust diagnostic features and multi-channel integration.
Replacement Considerations
The AD5755 and AD5755-1 are related parts within the same product family. Verify pinout compatibility and feature set differences, particularly regarding the number of channels and specific diagnostic capabilities, before substituting.
