參數(shù)資料
型號(hào): AD7656
廠商: Analog Devices, Inc.
英文描述: 250 kSPS, 6-Channel,Simultaneous Sampling, Bipolar 12/14/16-Bit ADC
中文描述: 250 kSPS的6通道同步采樣ADC的雙極12/14/16-Bit
文件頁(yè)數(shù): 11/25頁(yè)
文件大?。?/td> 308K
代理商: AD7656
Preliminary Technical Data
AD7658/AD7657/AD7656
PIN FUNCTIONAL DESCRIPTIONS
Rev. PrI | Page 11 of 25
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
1
1
2
2
2
2
2
2
2
2
2
2
3
3
3
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
6
6
6
6
6
5
5
5
5
5
5
5
5
5
5
4
PIN 1
IDENTIFIER
DB7/HBEN/DCEN
DB6/SCLK
DB5/DCIN A
DB4/DCIN B
DB3/DCIN C
DB2/SEL C
DB1/SEL B
VDRIVE
DB13
DB12
DB11
DB10/SDATA C
DB9/SDATA B
DB8/SDATA A
DGND
DB14/REFBUF
EN/DIS
R
D
R
W
V
V
A
D
B
C
R
C
C
C
S
D
V3
AGND
AGND
V2
AVCC
AVCC
V1
AVCC
AVCC
AVCC
V5
AGND
AGND
V4
AVCC
V6
A
A
A
R
A
A
R
H
S
A
A
R
A
D
W
E
R
Table 6. AD7658/AD7657/AD7656 Pin Function Descriptions
Pin Mnemonic
Description
REFCAPA, REFCAPB,
REFCAPC
ADC pair. Each REFCAP pin should be decoupled to AGND using 10 μF and 100 nF capacitors.
V1 – V6
Analog Input1-6. These are six single-ended Analog inputs. The Analog input range on these
channels is ddetermined by the RANGE pin.
AGND
Analog Ground. Ground reference point for all analog circuitry on the
AD7658/AD7657/AD7656. All analog input signals and any external reference signal should be
referred to this AGND voltage. All eleven of these AGND pins should be connected to the
AGND plane of a system. The AGND and DGND voltages ideally should be at the same
potential and must not be more than 0.3 V apart, even on a transient basis.
DVCC
Digital Power. Normally at 5V. The DVCC and AVCC voltages should ideally be at the same
potential and must not be more than 0.3 V apart even on a transient basis. This supply should
be decoupled to DGND. 10 μF and 100 nF decoupling capacitors should be placed on the
DVCC pin.
VDRIVE
Logic power supply input. The voltage supplied at this pin determines at what voltage the
interface will operate. Nominally at the same supply as the supply of the host interface. This
pin should be decoupled to DGND. 10 μF and 100 nF decoupling capacitors should be placed
on the VDRIVE pin.
Decoupling capacitors are connected to these pins to decouple the reference buffer for each
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AD7656A-1BSTZ 功能描述:16 Bit Analog to Digital Converter 6 Input 6 SAR 64-LQFP (10x10) 制造商:analog devices inc. 系列:iCMOS? 包裝:托盤(pán) 零件狀態(tài):有效 位數(shù):16 采樣率(每秒):250k 輸入數(shù):6 輸入類(lèi)型:單端 數(shù)據(jù)接口:SPI,并聯(lián),DSP 配置:S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):6 架構(gòu):SAR 參考類(lèi)型:外部, 內(nèi)部 電壓 - 電源,模擬:5V 電壓 - 電源,數(shù)字:5V 特性:仿真采樣,真正的雙極性 工作溫度:-40°C ~ 85°C 封裝/外殼:64-LQFP 供應(yīng)商器件封裝:64-LQFP(10x10) 標(biāo)準(zhǔn)包裝:1
AD7656A-1BSTZ-RL 功能描述:16 Bit Analog to Digital Converter 6 Input 6 SAR 64-LQFP (10x10) 制造商:analog devices inc. 系列:iCMOS? 包裝:帶卷(TR) 零件狀態(tài):有效 位數(shù):16 采樣率(每秒):250k 輸入數(shù):6 輸入類(lèi)型:單端 數(shù)據(jù)接口:SPI,并聯(lián),DSP 配置:S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):6 架構(gòu):SAR 參考類(lèi)型:外部, 內(nèi)部 電壓 - 電源,模擬:5V 電壓 - 電源,數(shù)字:5V 特性:仿真采樣,真正的雙極性 工作溫度:-40°C ~ 85°C 封裝/外殼:64-LQFP 供應(yīng)商器件封裝:64-LQFP(10x10) 標(biāo)準(zhǔn)包裝:1,500
AD7656ABSTZ 功能描述:16 Bit Analog to Digital Converter 6 Input 6 SAR 64-LQFP (10x10) 制造商:analog devices inc. 系列:iCMOS? 包裝:托盤(pán) 零件狀態(tài):有效 位數(shù):16 采樣率(每秒):250k 輸入數(shù):6 輸入類(lèi)型:單端 數(shù)據(jù)接口:SPI,并聯(lián),DSP 配置:S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):6 架構(gòu):SAR 參考類(lèi)型:外部, 內(nèi)部 電壓 - 電源,模擬:5V 電壓 - 電源,數(shù)字:5V 特性:仿真采樣,真正的雙極性 工作溫度:-40°C ~ 85°C 封裝/外殼:64-LQFP 供應(yīng)商器件封裝:64-LQFP(10x10) 標(biāo)準(zhǔn)包裝:1
AD7656ABSTZ-RL 功能描述:16 Bit Analog to Digital Converter 6 Input 6 SAR 64-LQFP (10x10) 制造商:analog devices inc. 系列:iCMOS? 包裝:帶卷(TR) 零件狀態(tài):有效 位數(shù):16 采樣率(每秒):250k 輸入數(shù):6 輸入類(lèi)型:單端 數(shù)據(jù)接口:SPI,并聯(lián),DSP 配置:S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):6 架構(gòu):SAR 參考類(lèi)型:外部, 內(nèi)部 電壓 - 電源,模擬:5V 電壓 - 電源,數(shù)字:5V 特性:仿真采樣,真正的雙極性 工作溫度:-40°C ~ 85°C 封裝/外殼:64-LQFP 供應(yīng)商器件封裝:64-LQFP(10x10) 標(biāo)準(zhǔn)包裝:1,500