Datasheet > LTC2453

LTC2453

更新时间： 2023-12-20 18:44:05

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
18页	285K
描述
具 I2C 接口的超纤巧、差分、16 位 ΔΣ ADC

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中文翻译

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数据手册

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LTC2453 数据手册

LTC2453

PIN FUNCTIONS

GND (Pin 1): Ground. Connect to a ground plane through

a low impedance connection.

SCL (Pin 7): Serial Clock Input of the I C Interface. The

LTC2453 can only act as a slave and the SCL pin only ac-

cepts external serial clock. Data is shifted into the SDA pin

on the rising edges of SCL and output through the SDA

pin on the falling edges of SCL.

–

REF (Pin 2), REF (Pin 3): Differential Reference Input.

The voltage on these pins can have any value between

GNDandV aslongasthereferencepositiveinput, REF ,

remains more positive than the negative reference input,

SDA (Pin 8): Bidirectional Serial Data Line of the I C

–

REF , by at least 2.5V. The differential reference voltage

Interface. The conversion result is output through the

SDA pin. The pin is high impedance unless the LTC2453

is in the data output mode. While the LTC2453 is in the

data output mode, SDA is an open drain pull down ±which

–

±V = REF to REF ) sets the full-scale range.

REF

(Pin 4): Positive Supply Voltage. Bypass to GND

±Pin 1) with a 10µF capacitor in parallel with a low-series-

inductance 0.1µF capacitor located as close to the part as

possible.

requires an external 1.7k pull-up resistor to V ).

ExposedPad(Pin9,DFNOnly):Ground.Mustbesoldered

to PCB ground.

–

IN (Pin 5), IN (Pin 6): Differential Analog Input.

BLOCK DIAGRAM

REF

SCL

SDA

16-BIT ∆∑

A/D CONVERTER

I C

INTERFACE

DECIMATING

SINC FILTER

–

16-BIT ∆∑

A/D CONVERTER

INTERNAL

OSCILLATOR

–

REF

GND

2453 BD

2453fc

1...3 4 567 8 9...18

中文翻译

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