參數(shù)資料
型號(hào)： AD7890
廠商： Analog Devices, Inc.
英文描述： 8-Channel, 12-Bit Serial, Data Acquisition System(LC2MOS 8通道12位串行DAS)
中文描述： 8通道，12位串行，數(shù)據(jù)采集系統(tǒng)（LC2MOS 8通道12位串行DAS）的
文件頁(yè)數(shù)： 6/20頁(yè)
文件大小： 312K
代理商： AD7890
AD7890
–6–
REV. A
PIN CONFIGURAT ION
DIP and SOIC
AGND
SMODE
REF OUT/REF IN
V
IN8
CONVST
CLK IN
SCLK
V
IN5
V
IN4
V
IN3
V
IN2
DGND
C
EXT
V
IN7
V
IN6
TFS
RFS
V
IN1
DATA OUT
AGND
DATA IN
SHA IN
V
DD
MUX OUT
14
1
2
24
23
5
6
7
20
19
18
3
4
22
21
8
17
9
16
10
15
11
TOP VIEW
(Not to Scale)
12
13
AD7890
Pin
Mnemonic
Description
17
V
IN2
Analog Input Channel 2. Single-ended analog input. T he analog input range on is
±
10 V (AD7890-
10), 0 V to +4.096 V (AD7890-4) and 0 V to +2.5 V (AD7890-2). T he channel to be converted is
selected using the A0, A1 and A2 bits in the control register. T he multiplexer has guaranteed
break-before-make operation.
Analog Input Channel 3. Single-ended analog input. T he analog input range on is
±
10 V (AD7890-
10), 0 V to +4.096 V (AD7890-4) and 0 V to +2.5 V (AD7890-2). T he channel to be converted is
selected using the A0, A1 and A2 bits in the control register. T he multiplexer has guaranteed
break-before-make operation.
Analog Input Channel 4. Single-ended analog input. T he analog input range on is
±
10 V (AD7890-
10), 0 V to +4.096 V (AD7890-4) and 0 V to +2.5 V (AD7890-2). T he channel to be converted is
selected using the A0, A1 and A2 bits in the control register. T he multiplexer has guaranteed
break-before-make operation.
Analog Input Channel 5. Single-ended analog input. T he analog input range on is
±
10 V (AD7890-
10), 0 V to +4.096 V (AD7890-4) and 0 V to +2.5 V (AD7890-2). T he channel to be converted is
selected using the A0, A1 and A2 bits in the control register. T he multiplexer has guaranteed
break-before-make operation.
Analog Input Channel 6. Single-ended analog input. T he analog input range on is
±
10 V (AD7890-
10), 0 V to +4.096 V (AD7890-4) and 0 V to +2.5 V (AD7890-2). T he channel to be converted is
selected using the A0, A1 and A2 bits in the control register. T he multiplexer has guaranteed
break-before-make operation.
Analog Input Channel 7. Single-ended analog input. T he analog input range on is
±
10 V (AD7890-
10), 0 V to +4.096 V (AD7890-4) and 0 V to +2.5 V (AD7890-2). T he channel to be converted is
selected using the A0, A1 and A2 bits in the control register. T he multiplexer has guaranteed
break-before-make operation.
Analog Input Channel 8. Single-ended analog input. T he analog input range on is
±
10 V (AD7890-
10), 0 V to +4.096 V (AD7890-4) and 0 V to +2.5 V (AD7890-2). T he channel to be converted is
selected using the A0, A1 and A2 bits in the control register. T he multiplexer has guaranteed
break-before-make operation.
Voltage Reference Output/Input. T he part can be used with either its own internal reference or with
an external reference source. T he on-chip +2.5 V reference voltage is provided at this pin. When
using this internal reference as the reference source for the part, REF OUT should decoupled to
AGND with a 0.1
μ
F disc ceramic capacitor. T he output impedance of this reference source is typi-
cally 2 k
. When using an external reference source as the reference voltage for the part, the refer-
ence source should be connected to this pin. T his overdrives the internal reference and provides the
reference source for the part. T he REF IN input is buffered on-chip. T he nominal reference voltage
for correct operation of the AD7890 is +2.5 V.
18
V
IN3
19
V
IN4
20
V
IN5
21
V
IN6
22
V
IN7
23
V
IN8
24
REF OUT /REF IN
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7890ACHIPS-2 功能描述:Data Acquisition System (DAS) 12 bit 117k SPI Die 制造商:analog devices inc. 系列:- 包裝:管件 零件狀態(tài):上次購(gòu)買(mǎi)時(shí)間 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:12 b 采樣率（每秒）:117k 數(shù)據(jù)接口:SPI 電壓源:單電源 電壓 - 電源:5V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:模具 供應(yīng)商器件封裝:模具 標(biāo)準(zhǔn)包裝:1
AD7890AN-10 功能描述:IC DAS 12BIT 8CH 24-DIP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán)
AD7890AN-2 功能描述:IC DAS 12BIT 8CH 24-DIP RoHS:否 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán)
AD7890AN-4 制造商:Analog Devices 功能描述:ADC Single SAR 117ksps 12-bit Serial 24-Pin PDIP 制造商:Rochester Electronics LLC 功能描述:8 CHANNEL,SERIAL A/D IC - Bulk
AD7890ANZ-10 功能描述:IC DAS 12BIT 8CH 24-DIP RoHS:是 類(lèi)別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專(zhuān)用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:50 系列:- 類(lèi)型:數(shù)據(jù)采集系統(tǒng)（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數(shù)據(jù)接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數(shù)字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類(lèi)型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤(pán) 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤(pán)
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