ADS1202_14 datasheet(10/26 Pages) TI1

tên linh kiện	ADS1202

Giải thích chi tiết về linh kiện	Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator

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nhà sản xuất	TI1 [Texas Instruments]

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ADS1202

10

SBAS275B

www.ti.com

GENERAL DESCRIPTION

The ADS1202 is a single-channel, 2nd-order, CMOS analog

modulator designed for medium- to high-resolution conver-

sions from dc to 39kHz with an oversampling ratio (OSR) of

256. The output of the converter (MDAT) provides a stream

of digital ones and zeros. The time average of this serial

output is proportional to the analog input voltage. The com-

bination of an ADS1202 and a Digital Signal Processor

(DSP) that is programmed to implement a digital filter results

in a medium-resolution A/D converter system. This system

allows flexibility with the digital filter design and is capable of

A/D conversion results that have a dynamic range exceeding

85dB with OSR = 256.

THEORY OF OPERATION

The differential analog input of the ADS1202 is implemented

with a switched capacitor circuit. This switched capacitor

circuit implements a 2nd-order modulator stage, which digi-

tizes the input signal into a 1-bit output stream. The sample

clock (MCLK) provides the switched capacitor network and

modulator clock signal for the A/D conversion process, as

well as the output data-framing clock. The clock source can

be internal as well as external. Different frequencies for this

clock allow for a variety of solutions and signal bandwidths

(however, this can only be utilized in mode 3). The analog

input signal is continuously sampled by the modulator and

compared to an internal voltage reference. A digital stream,

which accurately represents the analog input voltage over

time, appears at the output of the converter.

27

Ω

+5V

27

Ω

0.1

µF0.1µF

0.1

µF

10nF

SPICLK

SPISIMO

V

SSO

V

DD

MCLK

MDAT

GND

M0

V

IN+

V

IN–

M1

ADS1202

DSP

V

DDO

M

FIGURE 1. Connection Diagram for the ADS1202 Delta-Sigma Modulator Including DSP.

Số phần tương tự - ADS1202_14

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Burr-Brown (TI)	ADS1202I	311Kb / 21P	Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
Burr-Brown (TI)	ADS1202IPWR	311Kb / 21P	Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
Texas Instruments	ADS1202IPWR	502Kb / 24P	[Old version datasheet] Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
	ADS1202IPWR	875Kb / 25P	[Old version datasheet] Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
	ADS1202IPWR	875Kb / 25P	[Old version datasheet] Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator

More results

Mô tả tương tự - ADS1202_14

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Burr-Brown (TI)	ADS1202	311Kb / 21P	Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
Texas Instruments	ADS1202	502Kb / 24P	[Old version datasheet] Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
	ADS1202IPWRG4	875Kb / 25P	[Old version datasheet] Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
	ADS574JH	875Kb / 25P	[Old version datasheet] Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator
	AMC1203	990Kb / 29P	[Old version datasheet] 1-Bit, 10MHz, 2nd-Order, Isolated Delta-Sigma Modulator
	AMC1203	695Kb / 23P	[Old version datasheet] 1-Bit, 10MHz, 2nd-Order, Isolated Delta-Sigma Modulator
	ADS1204	968Kb / 28P	[Old version datasheet] Four 1-Bit, 10MHz, 2nd-Order Delta-Sigma Modulators
	ADS1205	300Kb / 22P	[Old version datasheet] TWO 1-BIT, 10MHz, 2nd-ORDER DELTA-SIGMA MODULATORS
	ADS1205	850Kb / 29P	[Old version datasheet] Two 1-bit, 10Mhz, 2nd Order Delta-sigma Modulators
	ADS1209	432Kb / 20P	[Old version datasheet] Two 1-Bit, 10MHz, 2nd-Order Delta-Sigma Modulators

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ADS1202 bảng dữ liệu(PDF) 10 Page - Texas Instruments

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Số phần tương tự - ADS1202_14

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