Datasheet > LTC1857

LTC1857

更新时间： 2024-09-24 04:43:43

品牌	Logo	应用领域
Linear Systems		转换器
页数	文件大小	规格书
20页	261K
描述
8-Channel, 12-/14-/16-Bit, 100ksps SoftSpan A/D Converters with Shutdown

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中文翻译

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数据手册

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LTC1857 数据手册

LTC1857/LTC1858/LTC1859

8-Channel, 12-/14-/16-Bit,

100ksps SoftSpan A/D Converters

with Shutdown

FEATURES

DESCRIPTIO

The LTC^®1857/LTC1858/LTC1859 are 8-channel, low

power, 12-/14-/16-bit, 100ksps, analog-to-digital con-

verters(ADCs). TheseSoftSpan^TMADCscanbesoftware-

programmed for 0V to 5V, 0V to 10V, ±5V or ±10V input

spans and operate from a single 5V supply. The 8-chan-

nel multiplexer can be programmed for single-ended

inputs or pairs of differential inputs or combinations of

both. Inaddition, allchannelsarefaultprotectedto±25V.

A fault condition on any channel will not affect the

conversion result of the selected channel.

■

Sample Rate: 100ksps

■

8-Channel Multiplexer with ±25V Protection

■

Single 5V Supply

■

Software-Programmable Input Ranges:

0V to 5V, 0V to 10V, ±5V or ±10V

Single Ended or Differential

■

±3LSB INL for the LTC1859, ±1.5LSB INL for the

LTC1858, ±1LSB INL for the LTC1857

■

Power Dissipation: 40mW (Typ)

SPI/MICROWIRE^TMCompatible Serial I/O

■

Power Shutdown: Nap and Sleep

Signal-to-Noise Ratio: 87dB (Typ) for the LTC1859

Operates with Internal or External Reference

Internal Synchronized Clock

28-Pin SSOP Package

An onboard high performance sample-and-hold and pre-

cision reference minimize external components. The low

40mW power dissipation is made even more attractive

withtwouserselectablepowershutdownmodes.DCspeci-

fications include ±3LSB INL for the LTC1859, ±1.5LSB

INL for the LTC1858 and ±1LSB for the LTC1857.

■

APPLICATIO S

The internal clock is trimmed for 5µs maximum conver-

sion time and the sampling rate is guaranteed at 100ksps.

Aseparateconvertstartinputanddatareadysignal(BUSY)

ease connections to FIFOs, DSPs and microprocessors.

, LTC and LT are registered trademarks of Linear Technology Corporation.

SoftSpan is a trademark of Linear Technology Corporation.

MICROWIRE is a trademark of National Semiconductor Corporation.

■

Industrial Process Control

■

Multiplexed Data Acquisition Systems

■

High Speed Data Acquisition for PCs

Digital Signal Processing

■

TYPICAL APPLICATIO

100kHz, 12-Bit/14-Bit/16-Bit Sampling ADC

LTC1859 Typical INL Curve

2.0

1.5

COM

CH0

CH1

CH2

CH3

CH4

CH5

CH6

CH7

CONVST

LTC1857/

SCK

SDI

LTC1858/

LTC1859

µP

CONTROL

LINES

1.0

SOFTWARE-PROGRAMMABLE

SINGLE-ENDED OR

DGND

SDO

BUSY

0.5

DIFFERENTIAL INPUTS

(0V TO 5V, 0V TO 10V,

±5V OR ±10V)

3V TO 5V

–0.5

–1.0

–1.5

–2.0

MUXOUT

–

AGND3

AGND2

REFCOMP

10µF

ADC

–

ADC

AGND1

2.5V

REF

–32768

–16384

16384

32767

1µF

10µF

CODE

1859 TA02

185789f

12 3 4 5 6 7...20

中文翻译

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与LTC1857相关器件

型号	品牌	获取价格	描述	数据表
LTC1857_15	Linear	获取价格	8-Channel, 12-/14-/16-Bit, 100ksps SoftSpan A/D Converters with Shutdown
LTC1857CG	Linear Systems	获取价格	8-Channel, 12-/14-/16-Bit, 100ksps SoftSpan A/D Converters with Shutdown
LTC1857CG#PBF	Linear	获取价格	LTC1857 - 8-Channel, 12-Bit, 100ksps SoftSpan A/D Converters with Shutdown; Package: SSOP;
LTC1857CG#TR	Linear	获取价格	LTC1857 - 8-Channel, 12-Bit, 100ksps SoftSpan A/D Converters with Shutdown; Package: SSOP;
LTC1857IG	Linear Systems	获取价格	8-Channel, 12-/14-/16-Bit, 100ksps SoftSpan A/D Converters with Shutdown
LTC1857IG#TR	Linear	获取价格	LTC1857 - 8-Channel, 12-Bit, 100ksps SoftSpan A/D Converters with Shutdown; Package: SSOP;
LTC1858	Linear Systems	获取价格	8-Channel, 12-/14-/16-Bit, 100ksps SoftSpan A/D Converters with Shutdown
LTC1858	Linear	获取价格	SPI/Digital or I2C Î¼Module Isolator with Adj
LTC1858	ADI	获取价格	具停机功能的 8 通道、14 位、100ksps SoftSpan A/D 转换器
LTC1858_15	Linear	获取价格	8-Channel, 12-/14-/16-Bit, 100ksps SoftSpan A/D Converters with Shutdown

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