Datasheet > ADS1202IPWT

ADS1202IPWT

更新时间： 2024-09-15 22:35:07

品牌	Logo	应用领域
BB		电机
页数	文件大小	规格书
21页	311K
描述
Motor Control Current Shunt 1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator

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ADS1202IPWT 数据手册

ADS1202

SBAS275 – DECEMBER 2002

Motor Control Current Shunt

1-Bit, 10MHz, 2nd-Order, Delta-Sigma Modulator

FEATURES

● 16-BIT RESOLUTION

DESCRIPTION

The ADS1202 is a precision, 80dB dynamic range, delta-

sigma (∆∑) modulator operating from a single +5V supply.

The differential inputs are ideal for direct connections to

transducers or low-level signals. With the appropriate digital

filter and modulator rate, the device can be used to achieve

16-bit Analog-to-Digital (A/D) conversion with no missing

codes. Effective resolution of 12 bits can be maintained with

a digital filter bandwidth of 10kHz at a modulator rate of

10MHz. The ADS1202 is designed for use in medium reso-

lution measurement applications including current measure-

ments, smart transmitters, industrial process control, weigh

scales, chromatography, and portable instrumentation. It is

available in a TSSOP-8 package.

● 13-BIT LINEARITY

● RESOLUTION/SPEED TRADE-OFF:

10-Bit Effective Resolution with 20µs Signal

Delay (12-bit with 77µs)

● ±250mV INPUT RANGE WITH SINGLE 5V SUPPLY

● 2% INTERNAL REFERENCE VOLTAGE

● 2% GAIN ERROR

● FLEXIBLE SERIAL INTERFACE WITH FOUR

DIFFERENT MODES

● IMPLEMENTED TWINNED BINARY CODING AS

SPLIT PHASE OR MANCHESTER CODING FOR

ONE LINE INTERFACING

● OPERATING TEMPERATURE RANGE:

–40°C to +85°C

APPLICATIONS

● MOTOR CONTROL

V_IN+

MDAT

2nd-Order

● CURRENT MEASUREMENT

● INDUSTRIAL PROCESS CONTROL

● INSTRUMENTATION

∆∑ Modulator

V_IN–

MCLK

Interface

Circuit

RC Oscillator

20MHz

V_DD

● SMART TRANSMITTERS

● PORTABLE INSTRUMENTS

● WEIGHT SCALES

GND

Reference

Voltage

2.5V

Buffer

● PRESSURE TRANSDUCERS

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

www.ti.com

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