參數(shù)資料
型號(hào)： AD7713AR
廠商： ANALOG DEVICES INC
元件分類： ADC
英文描述： LC2MOS Loop-Powered Signal Conditioning ADC
中文描述： 3-CH 24-BIT DELTA-SIGMA ADC, SERIAL ACCESS, PDSO24
封裝： SOIC-24
文件頁(yè)數(shù)： 26/28頁(yè)
文件大?。?/td> 516K
代理商： AD7713AR
REV. C
–26–
AD7713
OTHER 24-BIT SIGNAL CONDITIONING ADCS AVAILABLE
FROM ANALOG DEVICES
FUNCTIONAL BLOCK DIAGRAM
CLOCK
GENERATION
SERIAL INTERFACE
CONTROL
REGISTER
OUTPUT
REGISTER
CHARGING BALANCING A/D
CONVERTER
AUTO-ZEROED
∑
MODULATOR
DIGITAL
FILTER
AD7710
M
U
X
AGND DGND
MODE SDATA SCLK
A0
MCLK
OUT
MCLK
IN
AIN1(+)
AIN1(–)
AIN2(+)
AIN2(–)
REF
IN(–)
REF
IN(+)
AV
DD
DV
DD
AV
DD
4.5μA
A = 1 – 128
V
SS
AV
DD
20μA
V
BIAS
REF OUT
SYNC
DRDY
TFS
RFS
RTD
CURRENT
2.5V REFERENCE
PGA
FUNCTIONAL BLOCK DIAGRAM
CLOCK
GENERATION
SERIAL INTERFACE
CONTROL
REGISTER
OUTPUT
REGISTER
CHARGING BALANCING A/D
CONVERTER
AUTO-ZEROED
∑
MODULATOR
DIGITAL
FILTER
AD7711
M
U
X
AGND DGND
MODE SDATA SCLK
A0
MCLK
OUT
MCLK
IN
AIN1(+)
AIN1(–)
AIN2
REF
IN(–)
REF
IN(+)
AV
DD
DV
DD
AV
DD
4.5μA
A = 1 – 128
V
SS
AV
DD
200μA
V
BIAS
REF OUT
SYNC
DRDY
TFS
RFS
RTD2
2.5V REFERENCE
PGA
200μA
RTD1
AD7710
FEATURES
Charge Balancing ADC
24 Bits No Missing Codes
6
0.0015% Nonlinearity
Two-Channel Programmable Gain Front End
Gains from 1 to 128
Differential Inputs
Low-Pass Filter with Programmable Filter Cutoffs
Ability to Read/Write Calibration Coefficients
Bidirectional Microcontroller Serial Interface
Internal/External Reference Option
Single or Dual Supply Operation
Low Power (25 mW typ) with Power-Down Mode
(7 mW typ}
APPLICATIONS
Weigh Scales
Thermocouples
Process Control
Smart Transmitters
Chromatography
AD7711
FEATURES
Charge Balancing ADC
24 Bits No Missing Codes
6
0.0015% Nonlinearity
Two-Channel Programmable Gain Front End
Gains from 1 to 128
One Differential Input
One Single-Ended Input
Low-Pass Filter with Programmable Filter Cutoffs
Ability to Read/Write Calibration Coefficients
RTD Excitation Current Sources
Bidirectional Microcontroller Serial Interface
Internal/External Reference Option
Single or Dual Supply Operation
Low Power (25 mW typ) with Power-Down Mode
(7 mW typ)
APPLICATIONS
RTD Transducers
Process Control
Smart Transmitters
Portable Industrial Instruments
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