AD5303

更新时间： 2024-11-18 22:38:59

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
18页	227K
描述
+2.5 V to +5.5 V, 230 uA, Dual Rail-to-Rail Voltage Output 8-/10-/12-Bit DACs

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AD5303 数据手册

+2.5 V to +5.5 V, 230 ␮A, Dual Rail-to-Rail

Voltage Output 8-/10-/12-Bit DACs

AD5303/AD5313/AD5323*

GENERAL DESCRIPTION

FEATURES

The AD5303/AD5313/AD5323 are dual 8-, 10- and 12-bit

buffered voltage output DACs in a 16-lead TSSOP package that

operate from a single +2.5 V to +5.5 V supply consuming 230 µA

at 3 V. Their on-chip output amplifiers allow the outputs to

swing rail-to-rail with a slew rate of 0.7 V/µs. The AD5303/

AD5313/AD5323 utilize a versatile 3-wire serial interface that

operates at clock rates up to 30 MHz and is compatible with

standard SPI™, QSPI, MICROWIRE™ and DSP interface

standards.

AD5303: Two Buffered 8-Bit DACs in One Package

AD5313: Two Buffered 10-Bit DACs in One Package

AD5323: Two Buffered 12-Bit DACs in One Package

16-Lead TSSOP Package

Micropower Operation: 300 ␮A @ 5 V (Including

Reference Current)

Power-Down to 200 nA @ 5 V, 50 nA @ 3 V

+2.5 V to +5.5 V Power Supply

Double-Buffered Input Logic

Guaranteed Monotonic By Design Over All Codes

Buffered/Unbuffered Reference Input Options

Output Range: 0–V_REFor 0–2 V_REF

Power-On-Reset to Zero Volts

SDO Daisy-Chaining Option

Simultaneous Update of DAC Outputs via LDAC Pin

Asynchronous CLR Facility

Low Power Serial Interface with Schmitt-Triggered

Inputs

On-Chip Rail-to-Rail Output Buffer Amplifiers

The references for the two DACs are derived from two reference

pins (one per DAC). These reference inputs may be configured

as buffered or unbuffered inputs. The parts incorporate a power-

on-reset circuit that ensures that the DAC outputs power-up to

0 V and remain there until a valid write to the device takes place.

There is also an asynchronous active low CLR pin that clears

both DACs to 0 V. The outputs of both DACs may be updated

simultaneously using the asynchronous LDAC input. The

parts contain a power-down feature that reduces the current

consumption of the devices to 200 nA at 5 V (50 nA at 3 V) and

provides software-selectable output loads while in power-down

mode. The parts may also be used in daisy-chaining applications

using the SDO pin.

APPLICATIONS

Portable Battery Powered Instruments

Digital Gain and Offset Adjustment

Programmable Voltage and Current Sources

Programmable Attenuators

The low power consumption of these parts in normal operation

make them ideally suited to portable battery operated equip-

ment. The power consumption is 1.5 mW at 5 V, 0.7 mW at

3 V, reducing to 1 µW in power-down mode.

FUNCTIONAL BLOCK DIAGRAM

REF

BUF A

AD5303/AD5313/AD5323

POWER-ON

RESET

INPUT

DAC

STRING

DAC

OUT

BUFFER

SYNC

SCLK

DIN

INTERFACE

LOGIC

RESISTOR

NETWORK

POWER-DOWN

LOGIC

INPUT

DAC

STRING

DAC

BUFFER

V B

OUT

SDO

RESISTOR

NETWORK

GAIN-SELECT

LOGIC

GND

DCEN

BUF B

REF

LDAC CLR

*Protected by U.S. Patent No. 5684481; other patents pending.

SPI is a trademark of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corporation.

REV. 0

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 rights of third parties

which may result from its use. No license is granted by implication or

otherwise under any patent or patent rights of Analog Devices.

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

Tel: 781/329-4700

Fax: 781/326-8703

World Wide Web Site: http://www.analog.com

12 3 4 5 6 7...18

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与AD5303相关器件

型号	品牌	获取价格	描述	数据表
AD53032	ADI	获取价格	High Performance Driver/Comparator Active Load on a Single Chip
AD53032JSTP	ADI	获取价格	High Performance Driver/Comparator Active Load on a Single Chip
AD53033	ADI	获取价格	High Performance Driver/Comparator on a Single Chip
AD53033JSTP	ADI	获取价格	High Performance Driver/Comparator on a Single Chip
AD5303ARU	ADI	获取价格	2.5 V to 5.5 V, 230 Î¼A, Dual Rail-to-Rail Vo
AD5303ARU	ROCHESTER	获取价格	SERIAL INPUT LOADING, 6 us SETTLING TIME, 8-BIT DAC, PDSO16, MO-153AB, TSSOP-16
AD5303ARU-REEL7	ADI	获取价格	2.5 V to 5.5 V, 230 Î¼A, Dual Rail-to-Rail Vo
AD5303ARU-REEL7	ROCHESTER	获取价格	SERIAL INPUT LOADING, 6 us SETTLING TIME, 8-BIT DAC, PDSO16, MO-153AB, TSSOP-16
AD5303ARUZ	ADI	获取价格	暂无描述
AD5303ARUZ1	ADI	获取价格	2.5 V to 5.5 V, 230 Î¼A, Dual Rail-to-Rail Vo

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