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參數(shù)資料
| 型號(hào)： | AD7872JR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | LC2MOS Complete 14-Bit, Sampling ADCs |
| 中文描述： | 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁(yè)數(shù)： | 5/16頁(yè) |
| 文件大小： | 344K |
| 代理商： | AD7872JR |
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AD7871/AD7872
–5–
REV. D
AD7872 PIN FUNCT ION DE SCRIPT ION
DIP
No.
Mnemonic
Function
1
CONT ROL
Control Input. With this pin at 0 V, the SCLK is noncontinuous; with this pin at –5 V, the SCLK
is continuous.
Convert Start. A low to high transition on this input puts the track/hold into the hold mode. T his
input is asynchronous to the CLK .
Clock Input. An external T T L-compatible clock may be applied to this input. Alternatively, tying
this pin to V
SS
, enables the internal laser-trimmed oscillator.
T his is an active low three-state output that provides a framing pulse for serial data. An external
4.7 k
pull-up resistor is required on
SSTRB
.
Serial Clock. SCLK is the gated serial clock output derived from the internal or external ADC
clock. If the 14/
8
/CLK input is at –5 V, then the SCLK runs continuously. With CONT ROL
at 0 V, it is gated off (three-state) after serial transmission is complete. SCLK is an open-drain
output and requires an external 2 k
pull-up resistor.
Serial Data. T his is the three-state serial data output used in conjunction with SCLK and
SSTRB
in
serial data transmission. Serial data is valid on the falling edge of SCLK , when
SSTRB
is low. An
external 4.7 k
pull-up resistor is required on SDAT A.
No Connect.
Digital Ground. Ground return for digital circuitry.
Positive Supply for analog circuitry, +5 V
±
5%.
No Connect.
Decoupling point for on-chip reference. Connect 10 nF capacitor between this pin and AGND.
Analog Ground. Ground reference for analog circuitry.
Voltage Reference Output. T he internal 3 V reference is provided at this pin. T he external load
capability is 500
μ
A.
Analog Input. T he input range is
±
3 V.
Negative Supply, –5 V
±
5%.
Positive Supply for analog circuitry, +5 V
±
5%. Pin 16 and Pin 9 should be connected together.
2
CONVST
3
CLK
4
SSTRB
5
SCLK
6
SDAT A
7
8
9
10
11
12
13
NC
DGND
V
DD
NC
C
REF
AGND
REF OUT
14
15
16
V
IN
V
SS
V
DD
PIN CONFIGURAT IONS
DIP
DIP, SOIC
PLC C
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| AD7872JR-REEL | 制造商:Analog Devices 功能描述: |
| AD7872JRZ | 功能描述:IC ADC 14BIT LC2MOS 16-SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個(gè)單端，單極；2 個(gè)差分，單極 產(chǎn)品目錄頁(yè)面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7872JRZ-REEL | 功能描述:IC ADC 14BIT SAMPLING 16SOIC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極 |
| AD7872KN | 功能描述:IC ADC 14BIT SAMPLING 16-DIP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極 |
| AD7872KNZ | 功能描述:IC ADC 14BIT SAMPLING 16-DIP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):14 采樣率（每秒）:83k 數(shù)據(jù)接口:串行，并聯(lián) 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:95mW 電壓電源:雙 ± 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:28-DIP（0.600"，15.24mm） 供應(yīng)商設(shè)備封裝:28-PDIP 包裝:管件 輸入數(shù)目和類型:1 個(gè)單端，雙極 |
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