参数资料
型号: AD7738BRU-REEL7
厂商: Analog Devices Inc
文件页数: 25/28页
文件大小: 0K
描述: IC ADC 24BIT 8CH SIG-DEL 28TSSOP
标准包装: 1,000
位数: 24
采样率(每秒): 15.4k
数据接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
转换器数目: 1
功率耗散(最大): 100mW
电压电源: 模拟和数字
工作温度: -40°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 带卷 (TR)
输入数目和类型: 8 个单端,单极;8 个单端,双极;4 个差分,单极;4 个差分,双极
配用: EVAL-AD7738EBZ-ND - BOARD EVAL FOR AD7738
REV. 0
–6–
AD7738
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although the
AD7738 features proprietary ESD protection circuitry, permanent damage may occur on devices
subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended
to avoid performance degradation or loss of functionality.
ABSOLUTE MAXIMUM RATINGS
*
(TA = 25 C unless otherwise noted.)
AVDD to AGND, DVDD to DGND . . . . . . . . . –0.3 V to +7 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . –0.3 V to +0.3 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . . . . . . –5 V to +5 V
AIN, AINCOM to AGND . . . . . . . . . –0.3 V to AVDD + 0.3 V
REFIN(+), REFIN(–) to AGND . . . . . –0.3 V to AVDD + 0.3 V
MUXOUT(+) to AGND . . . . . . . . . . . –0.3 V to AVDD + 0.3 V
MUXOUT(–) to AGND . . . . . . . . . . . –0.3 V to AVDD + 0.3 V
ADCIN(+), ADCIN(–) to AGND . . . . –0.3 V to AVDD + 0.3 V
P1 Voltage to AGND . . . . . . . . . . . . . . –0.3 V to AVDD + 0.3 V
Digital Input Voltage to DGND . . . . . –0.3 V to AVDD + 0.3 V
Digital Output Voltage to DGND . . . . –0.3 V to AVDD + 0.3 V
Operating Temperature Range . . . . . . . . . . –40 C to +105 C
Storage Temperature Range . . . . . . . . . . . . –65 C to +150 C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150 C
TSSOP Package, Power Dissipation . . . . . . . . . . . . . 660 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . .
97.9 C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . 215 C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
SCLK
DIN
DOUT
CS
RDY
RESET
SERIAL
INTERFACE
CONTROL
LOGIC
AIN4
AIN5
AIN6
AIN7
MUX
AINCOM/P0
AIN0
AIN1
AIN2
AIN3
DGND
DVDD
REFERENCE
DETECT
REFIN– REFIN+
I/O PORT
SYNC/P1
CLOCK
GENERATOR
MCLKIN
MCLKOUT
MUXOUT ADCIN
AGND
AVDD
24-BIT
-
ADC
BUFFER
AD7738
CALIBRATION
CIRCUITRY
DVDD
AVDD
Figure 4. Block Diagram
ORDERING GUIDE
Temperature
Package
Model
Range
Description
Options
AD7738BRU
–40 C to +105 CTSSOP 28
RU-28
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