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參數(shù)資料
| 型號： | AD7891YPZ-1 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 14/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS 12BIT 8CH 44-PLCC |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 500k |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 電壓電源： | 單電源 |
| 電源電壓： | 5V |
| 工作溫度： | -55°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 44-LCC（J 形引線） |
| 供應(yīng)商設(shè)備封裝： | 44-PLCC（16.59x16.59） |
| 包裝： | 管件 |
–3–
REV. D
AD7891
Parameter
A Version
1
B Version
Y Version
Unit
Test Conditions/Comments
LOGIC OUTPUTS
Output High Voltage, VOH
4.0
V min
ISOURCE = 200
mA.
Output Low Voltage, VOL
0.4
V max
ISINK = 1.6 mA.
DB11to DB0
Floating-State Leakage Current
±10
mA max
Floating-State Capacitance
5
15
pF max
Output Coding
Straight (Natural) Binary
Data format bit of control register = 0.
Twos Complement
Data format bit of control register = 1.
CONVERSION RATE
Conversion Time
1.6
ms max
Track/Hold Acquisition Time
0.6
ms max
AD7891-1 hardware conversion.
0.7
ms max
AD7891-1 software conversion.
0.4
ms max
AD7891-2.
POWER REQUIREMENTS
VDD
55
5
V nom
±5% for specified performance.
IDD
Normal Mode
20
21
mA max
Standby Mode
80
mA max
Logic inputs = 0 V or VDD.
Power Dissipation
VDD = 5 V.
Normal Mode
100
105
mW max
Typically 82 mW.
Standby Mode
400
mW max
Typically 75
mW.
NOTES
1Temperature ranges for the A and B Versions: –40
∞C to +85∞C. Temperature range for the Y Version: –55∞C to +105∞C.
2The AD7891-1’s dynamic performance (THD and SNR) and the AD7891-2’s THD are measured with an input frequency of 10 kHz. The AD7891-2’s SNR is
evaluated with an input frequency of 100 kHz.
3This throughput rate can only be achieved when the part is operated in the parallel interface mode. Maximum achievable throughput rate in the serial interface mode
is 357 kSPS.
4See the Terminology section.
5Sample tested during initial release and after any redesign or process change that may affect this parameter.
6REF IN must be buffered before being applied to V
INXB.
Specifications subject to change without notice.
ABSOLUTE MAXIMUM RATINGS
*
(TA = 25
∞C, unless otherwise noted)
VDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
VDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to AGND
AD7891-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±17 V
AD7891-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . –5 V, +10 V
Reference Input Voltage to AGND . . . . –0.3 V to VDD + 0.3 V
Digital Input Voltage to DGND . . . . . . –0.3 V to VDD + 0.3 V
Digital Output Voltage to DGND . . . . . –0.3 V to VDD + 0.3 V
Operating Temperature Range
Commercial (A, B Versions) . . . . . . . . . . . – 40
∞C to +85∞C
Automotive (Y Version) . . . . . . . . . . . . . . –55
∞C to +105∞C
Storage Temperature Range . . . . . . . . . . . . –65
∞C to +150∞C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . 150
∞C
MQFP Package, Power Dissipation . . . . . . . . . . . . . . 450 mW
qJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 95∞C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215
∞C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
∞C
PLCC Package, Power Dissipation . . . . . . . . . . . . . . 500 mW
qJA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . 55∞C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . 215
∞C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
∞C
*Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those listed in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection.
Although the AD7891 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD
precautions are recommended to avoid performance degradation or loss of functionality.
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相關(guān)代理商/技術(shù)參數(shù) |
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| AD7891YPZ-1REEL | 功能描述:IC DAS 12BIT 8CH 44-PLCC RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - ADCs/DAC - 專用型 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 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（6x6） 包裝:托盤 |
| AD7891YS1 | 制造商:AD 功能描述:New |
| AD7891YS-1 | 制造商:Analog Devices 功能描述:ADC Single 454.5ksps 12-bit Parallel/Serial 44-Pin MQFP |
| AD7891YS-1REEL | 制造商:Analog Devices 功能描述:ADC Single 454.5ksps 12-bit Parallel/Serial 44-Pin MQFP T/R 制造商:Analog Devices 功能描述:ADC SGL 454.5KSPS 12-BIT PARALLEL/SERL 44MQFP - Tape and Reel |
| AD7891YS-2 | 制造商:Analog Devices 功能描述:ADC Single 500ksps 12-bit Parallel/Serial 44-Pin MQFP 制造商:Rochester Electronics LLC 功能描述:8 CHANNEL, 12-BIT ADC I.C. - Bulk |
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