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參數資料
| 型號： | AD7890AR-4 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | Circular Connector Cable Assembly; Connector Type A:Circular Receptacle; Connector Type B:Stripped End Leads; Cable Length:10ft RoHS Compliant: Yes |
| 中文描述： | 8-CH 12-BIT PROPRIETARY METHOD ADC, SERIAL ACCESS, PDSO24 |
| 封裝： | MS-013AD, SOIC-24 |
| 文件頁數： | 6/20頁 |
| 文件大小： | 302K |
| 代理商： | AD7890AR-4 |
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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| AD7890AR-4REEL | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - ADCs/DAC - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數據采集系統（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數據接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7890ARZ-10 | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - ADCs/DAC - 專用型 系列:- 產品培訓模塊:Data Converter Basics 標準包裝:1 系列:- 類型:電機控制 分辨率（位）:12 b 采樣率（每秒）:1M 數據接口:串行，并聯 電壓電源:單電源 電源電壓:2.7 V ~ 3.6 V，4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-TQFP 供應商設備封裝:100-TQFP（14x14） 包裝:剪切帶 (CT) 其它名稱:296-18373-1 |
| AD7890ARZ-10REEL | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - ADCs/DAC - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數據采集系統（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數據接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7890ARZ-2 | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - ADCs/DAC - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數據采集系統（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數據接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7890ARZ-2REEL | 功能描述:IC DAS 12BIT 8CH 24-SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - ADCs/DAC - 專用型 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 類型:數據采集系統（DAS） 分辨率（位）:16 b 采樣率（每秒）:21.94k 數據接口:MICROWIRE?，QSPI?，串行，SPI? 電壓電源:模擬和數字 電源電壓:1.8 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應商設備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
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