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參數(shù)資料
AD7910/AD7920
Rev. C | Page 9 of 24
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
VDD 1
GND
2
VIN 3
CS
6
SDATA
5
SCLK
4
AD7910/
AD7920
TOP VIEW
(Not to Scale)
02976-005
Figure 5. 6-Lead SC70 Pin Configuration
VDD 1
SDATA
2
CS
3
NC
4
VIN
8
GND
7
SCLK
6
NC
5
NC = NO CONNECT
AD7910/
AD7920
TOP VIEW
(Not to Scale)
02976-006
Figure 6. 8-Lead MSOP Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
6-Lead
SC70
Pin No.
8-Lead
MSOP
Mnemonic
Description
6
3
CS
Chip Select. Active low logic input. This input provides the dual function of initiating conversions on the
AD7910/AD7920 and framing the serial data transfer.
1
VDD
Power Supply Input. The VDD range for the AD7910/AD7920 is from 2.35 V to 5.25 V.
2
7
GND
Analog Ground. Ground reference point for all circuitry on the AD7910/AD7920. All analog input signals
should be referred to this GND voltage.
3
8
VIN
Analog Input. Single-ended analog input channel. The input range is 0 to VDD.
5
2
SDATA
Data Out. Logic output. The conversion result from the AD7910/AD7920 is provided on this output as a
serial data stream. The bits are clocked out on the falling edge of the SCLK input. The data stream from
the AD7920 consists of four leading zeros followed by the 12 bits of conversion data, which is provided
MSB first. The data stream from the AD7910 consists of four leading zeros followed by the 10 bits of
conversion data followed by two trailing zeros, which is also provided MSB first.
4
6
SCLK
Serial Clock. Logic input. SCLK provides the serial clock for accessing data from the part. This clock input
is also used as the clock source for the AD7910/AD7920 conversion process.
N/A
4, 5
NC
No Connect.
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| AD7920BRMZ-REEL | 功能描述:IC ADC 12BIT SRL 250KSPS 8MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7920BRMZ-REEL7 | 功能描述:IC ADC 12BIT SRL 250KSPS 8MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉換器 系列:- 標準包裝:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉換器數(shù)目:1 功率耗散（最大）:480µW 電壓電源:單電源 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:38-WFQFN 裸露焊盤 供應商設備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個單端，雙極；8 個差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7921 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2-Channel, 2.35 V to 5.25 V 250 kSPS, 10-/12-Bit ADCs |
| AD7921ARM | 制造商:Analog Devices 功能描述:ADC Single SAR 250ksps 12-bit Serial 8-Pin MSOP 制造商:Rochester Electronics LLC 功能描述:DUAL 12-BIT , 250KSPS ADC I.C. - Bulk 制造商:Analog Devices 功能描述:12BIT ADC DUAL SMD 7921 MSOP8 |
| AD7921ARM-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 250ksps 12-bit Serial 8-Pin MSOP T/R 制造商:Analog Devices 功能描述:ADC SGL SAR 250KSPS 12-BIT SERL 8MSOP - Tape and Reel 制造商:Rochester Electronics LLC 功能描述:DUAL 12-BIT , 250KSPS ADC I.C. - Tape and Reel |
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