MAX5820

更新时间： 2024-11-05 22:55:19

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
13页	401K
描述
Dual, 8-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC

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MAX5820 数据手册

19-3538; Rev 0; 2/05

Dual, 8-Bit, Low-Power, 2-Wire, Serial

Voltage-Output DAC

General Description

Features

The MAX5820 is a dual, 8-bit voltage-output, digital-to-

analog converter (DAC) with an I²C*-compatible,

2-wire interface that operates at clock rates up to 400kHz.

The device operates from a single 2.7V to 5.5V supply

♦ Ultra-Low Supply Current

115µA at V

135µA at V

= 3.6V

= 5.5V

♦ 300nA Low-Power Power-Down Mode

(115µA at V

= 3.6V). A power-down mode decreases

♦ Single 2.7V to 5.5V Supply Voltage

♦ Fast 400kHz I²C-Compatible 2-Wire

current consumption to less than 1µA. The MAX5820 fea-

tures three software-selectable power-down output

impedances: 100kΩ, 1kΩ, and high impedance. Other

features include internal precision rail-to-rail output

buffers and a power-on reset (POR) circuit that powers up

the DAC in the 100kΩ power-down mode.

Serial Interface

♦ Schmitt-Trigger Inputs for Direct Interfacing

to Optocouplers

The MAX5820 features a double-buffered I²C-compatible

serial interface that allows multiple devices to share a sin-

gle bus. All logic inputs are CMOS-logic compatible and

buffered with Schmitt triggers, allowing direct interfacing

to optocoupled and transformer-isolated interfaces. The

MAX5820 minimizes digital noise feedthrough by discon-

necting the clock (SCL) signal from the rest of the device

when an address mismatch is detected.

♦ Rail-to-Rail Output Buffer Amplifiers

♦ Three Software-Selectable Power-Down Output

Impedances

100kΩ, 1kΩ, and High Impedance

♦ Readback Mode for Bus and Data Checking

♦ Power-On Reset to Zero

♦ 8-Pin µMAX Package

The MAX5820 is specified over the extended (-40°C to

+85°C) temperature range and is available in a small

Ordering Information

8-pin µMAX package. Refer to the MAX5822 data

sheet for the 12-bit version and to the MAX5821 data

sheet for a 10-bit version.

TEMP

RANGE

PIN-

PACKAGE

PART

ADDRESS

MAX5820LEUA -40°C to +85°C 8 µMAX

MAX5820MEUA -40°C to +85°C 8 µMAX

0111 00X

1011 00X

Applications

Digital Gain and Offset Adjustments

Programmable Voltage and Current Sources

Programmable Attenuation

Typical Operating Circuit

VCO/Varactor Diode Control

Low-Cost Instrumentation

µC

Battery-Operated Instrumentation

SDA

SCL

Pin Configuration

TOP VIEW

SCL

MAX5820

OUTA

OUTB

SDA

REF

OUTB

OUTA

REF

GND

ADD

SCL

MAX5820

SCL

MAX5820

OUTA

OUTB

SDA

REF

SDA

µMAX

REF

µMAX is a registered trademark of Maxim Integrated Products, Inc.

*Purchase of I C components from Maxim Integrated Products, Inc., or one of its sublicensed Associate Companies, conveys a

license under the Philips I C Patent Rights to use these components in an I C system, provided that the system conforms to the

I C Standard Specification defined by Philips.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...13

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与MAX5820相关器件

型号	品牌	获取价格	描述	数据表
MAX5820L	MAXIM	获取价格	Dual, 8-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC
MAX5820LEUA	MAXIM	获取价格	Dual, 8-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC
MAX5820LEUA+	MAXIM	获取价格	D/A Converter, 2 Func, Serial Input Loading, 4us Settling Time, PDSO8, MO-187C-AA, MICRO S
MAX5820LEUA+T	MAXIM	获取价格	D/A Converter, 2 Func, Serial Input Loading, 4us Settling Time, PDSO8, MO-187C-AA, MICRO S
MAX5820LEUA-T	MAXIM	获取价格	D/A Converter, 2 Func, Serial Input Loading, 4us Settling Time, PDSO8, MO-187C-AA, MICRO S
MAX5820M	MAXIM	获取价格	Dual, 8-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC
MAX5820MEUA	MAXIM	获取价格	Dual, 8-Bit, Low-Power, 2-Wire, Serial Voltage-Output DAC
MAX5820MEUA+	MAXIM	获取价格	D/A Converter, 2 Func, Serial Input Loading, 4us Settling Time, PDSO8, ROHS COMPLIANT, MO-
MAX5820MEUA+T	MAXIM	获取价格	D/A Converter, 2 Func, Serial Input Loading, 4us Settling Time, PDSO8, MO-187C-AA, MICRO S
MAX5820MEUA-T	MAXIM	获取价格	D/A Converter, 2 Func, Serial Input Loading, 4us Settling Time, PDSO8, MO-187C-AA, MICRO S

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