MAX1112C

更新时间： 2024-09-26 11:18:55

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
20页	377K
描述
5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs Internal 4.096V Reference

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MAX1112C 数据手册

19-1231; Rev 2; 4/11

+5V, Low-Power, Multi-Channel,

Serial 8-Bit ADCs

General Description

____________________________Features

The MAX1112/MAX1113 low-power, 8-bit, 8-channel

analog-to-digital converters (ADCs) feature an internal

track/hold, voltage reference, clock, and serial inter-

face. They operate from a single 4.5V to 5.5V supply

and consume only 135µA while sampling at rates up to

50ksps. The MAX1112’s 8 analog inputs and the

MAX1113’s 4 analog inputs are software-configurable,

allowing unipolar/bipolar and single-ended/differential

operation.

♦ 4.5V to 5.5V Single Supply

♦ Low Power: 135µA at 50ksps

13µA at 1ksps

♦ 8-Channel Single-Ended or 4-Channel Differential

Inputs (MAX1112)

♦ 4-Channel Single-Ended or 2-Channel Differential

Inputs (MAX1113)

Successive-approximation conversions are performed

using either the internal clock or an external serial-inter-

face clock. The full-scale analog input range is deter-

mined by the 4.096V internal reference, or by an

♦ Internal Track/Hold; 50kHz Sampling Rate

♦ Internal 4.096V Reference

♦ SPI/QSPI/MICROWIRE-Compatible Serial Interface

♦ Software-Configurable Unipolar or Bipolar Inputs

externally applied reference ranging from 1V to V

The 4-wire serial interface is compatible with the SPI™,

QSPI™, and MICROWIRE™ serial-interface standards.

A serial-strobe output provides the end-of-conversion

signal for interrupt-driven processors.

♦ Total Unadjusted Error: 1 LSB (max)

0.3 LSB (typ)

The MAX1112/MAX1113 have a software-program-

mable, 2µA automatic power-down mode to minimize

power consumption. Using power-down, the supply

current is reduced to 13µA at 1ksps, and only 82µA at

10ksps. Power-down can also be controlled using the

SHDN input pin. Accessing the serial interface automat-

ically powers up the device.

Ordering Information continued at end of data sheet.

Functional Diagram

SCLK

The MAX1112 is available in a 20-pin SSOP package.

The MAX1113 is available in a small 16-pin QSOP

package.

INPUT

INT

SHIFT

DIN

CLOCK

CONTROL

LOGIC

SHDN

________________________Applications

Portable Data Logging

CH0

CH1

CH2

OUTPUT

SHIFT

DOUT

SSTRB

ANALOG

INPUT

MUX

Hand-Held Measurement Devices

Medical Instruments

CH3

T/H

CH4*

CH5*

CH6*

CH7*

CLOCK

8-BIT

SAR ADC

OUT

System Diagnostics

REF

COM

Solar-Powered Remote Systems

DGND

AGND

+4.096V

REFERENCE

REFOUT

MAX1112

MAX1113

4mA to 20mA-Powered Remote

Data-Acquisition Systems

REFIN

*MAX1112 ONLY

Pin Configurations appear at end of data sheet.

SPI and QSPI are trademarks of Motorola, Inc.

MICROWIRE is a trademark of National Semiconductor Corp.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...20

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与MAX1112C相关器件

型号	品牌	获取价格	描述	数据表
MAX1112C/D	MAXIM	获取价格	+5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs
MAX1112CAP	MAXIM	获取价格	+5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs
MAX1112CAP+	MAXIM	获取价格	ADC, Successive Approximation, 8-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, ROHS
MAX1112CAP+T	MAXIM	获取价格	ADC, Successive Approximation, 8-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, 5.30
MAX1112CPP	MAXIM	获取价格	+5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs
MAX1112CPP+	MAXIM	获取价格	ADC, Successive Approximation, 8-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDIP20, PLAS
MAX1112D	MAXIM	获取价格	5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs Internal 4.096V Reference
MAX1112EAP	MAXIM	获取价格	+5V, Low-Power, Multi-Channel, Serial 8-Bit ADCs
MAX1112EAP+T	MAXIM	获取价格	暂无描述
MAX1112EAP-T	MAXIM	获取价格	ADC, Successive Approximation, 8-Bit, 1 Func, 8 Channel, Serial Access, CMOS, PDSO20, 5.30

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