Datasheet > AD5737_12

AD5737_12

更新时间： 2022-10-08 17:17:39

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
44页	950K
描述
Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output

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AD5737_12 数据手册

Quad-Channel, 12-Bit, Serial Input, 4 mA to 20 mA Output

DAC with Dynamic Power Control and HART Connectivity

Data Sheet

AD5737

Each channel has a corresponding CHART pin so that HART

signals can be coupled onto the current output of the AD5737.

FEATURES

12-bit resolution and monotonicity

Dynamic power control for thermal management

or external PMOS mode

Current output ranges: 0 mA to 20 mA, 4 mA to 20 mA,

and 0 mA to 24 mA

0.1% total unadjusted error (TUE) maximum

User-programmable offset and gain

On-chip diagnostics

On-chip reference: 10 ppm/°C maximum

−40°C to +105°C temperature range

The AD5737 uses a versatile 3-wire serial interface that operates

at clock rates of up to 30 MHz and is compatible with standard

SPI, QSPI™, MICROWIRE®, DSP, and microcontroller interface

standards. The serial interface also features optional CRC-8 packet

error checking, as well as a watchdog timer that monitors activity

on the interface.

PRODUCT HIGHLIGHTS

1. Dynamic power control for thermal management.

2. 12-bit performance.

3. Quad channel.

APPLICATIONS

Process control

Actuator control

PLCs

4. HART compliant.

COMPANION PRODUCTS

Product Family: AD5755, AD5755-1, AD5757, AD5735

HART Modem: AD5700, AD5700-1

External References: ADR445, ADR02

HART network connectivity

GENERAL DESCRIPTION

The AD5737 is a quad-channel current output DAC that

operates with a power supply range from 10.8 V to 33 V.

On-chip dynamic power control minimizes package power

dissipation by regulating the voltage on the output driver from

7.4 V to 29.5 V using a dc-to-dc boost converter optimized for

minimum on-chip power dissipation.

Digital Isolators: ADuM1410, ADuM1411

Power: ADP2302, ADP2303

Additional companion products on the AD5737 product page

FUNCTIONAL BLOCK DIAGRAM

5.0V

AGND +15V

BOOST_x

7.4V TO 29.5V

DGND

LDAC

DC-TO-DC

CONVERTER

SCLK

SDIN

DIGITAL

INTERFACE

SYNC

OUT_x

SDO

CLEAR

FAULT

DAC A

SET_x

CURRENT

OUTPUT RANGE

SCALING

CHARTx

ALERT

AD1

GAIN REG A

OFFSET REG A

AD0

DAC CHANNEL A

REFOUT

REFIN

REFERENCE

DAC CHANNEL B

DAC CHANNEL C

DAC CHANNEL D

AD5737

NOTES

1. x = A, B, C, OR D.

Figure 1.

Rev. B

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rightsof third parties that may result fromits use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks andregisteredtrademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700 www.analog.com

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