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參數(shù)資料
| 型號： | AD7874SE |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | 10-Bit, 75 MSPS ADC SE/Diff, Int/Ext Ref., program. i/p range w/Pwrdown, comp. to ADS822/3/5/6 28-SSOP |
| 中文描述： | 4-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, CQCC28 |
| 封裝： | CERAMIC, LCC-28 |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 414K |
| 代理商： | AD7874SE |
AD7874
REV. C
–3–
TIMNGCHARACTERISTICS
1
Parameter
A, B Versions
S Version
Units
Conditions/Comments
t
1
t
2
t
3
t
4
t
5
t
62
t
73
50
0
60
0
60
57
5
45
130
31
32.5
31
35
10
50
0
70
0
60
70
5
50
150
31
32.5
31
35
10
ns min
ns min
ns min
ns min
ns max
ns max
ns min
ns max
ns min
μ
s min
μ
s max
μ
s min
μ
s max
μ
s max
CONVST
Pulse Width
CS
to
RD
Setup T ime
RD
Pulse Width
CS
to
RD
Hold T ime
RD
to
INT
Delay
Data Access T ime after
RD
Bus Relinquish T ime after
RD
t
8
t
CONV
Delay T ime between Reads
CONVST
to
INT
, External Clock
CONVST
to
INT
, External Clock
CONVST
to
INT
, Internal Clock
CONVST
to
INT
, Internal Clock
Minimum Input Clock Period
t
CLK
NOT ES
1
T iming Specifications in
bold print
are 100% production tested. All other times are sample tested at +25
°
C to ensure compliance. All input signals are specified with
tr = tf = 5 ns (10% to 90% of +5 V) and timed from a voltage level of 1.6 V.
2
t
6
is measured with the load circuit of Figure 1 and defined as the time required for an output to cross 0.8 V or 2.4 V.
3
t
is derived from the measured time taken by the data outputs to change 0.5 V when loaded with the circuit of Figure 2. T he measured number is then extrapolated
back to remove the effects of charging or discharging the 50 pF capacitor. T his means that the time, t
7
, quoted in the timing characteristics is the true bus relinquish
time of the part and as such is independent of external bus loading capacitances.
Specifications subject to change without notice.
(V
DD
= +5 V
6
5%, V
SS
= –5 V
6
5%, AGND = DGND = OV, t
CLK
= 2.5 MHz external unless
otherwse noted.)
ABSOLUT E MAX IMUM RAT INGS*
(T
A
= +25
°
C unless otherwise noted)
V
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
V
DD
to DGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
V
SS
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . +0.3 V to –7 V
AGND to DGND . . . . . . . . . . . . . . . . –0.3 V to V
DD
+ 0.3 V
V
IN
to AGND . . . . . . . . . . . . . . . . . . . . . . . . .–15 V to +15 V
REF OUT to AGND . . . . . . . . . . . . . . . . . . . . . . . 0 V to V
DD
Digital Inputs to DGND . . . . . . . . . . . –0.3 V to V
DD
+ 0.3 V
Digital Outputs to DGND . . . . . . . . . . –0.3 V to V
DD
+ 0.3 V
Operating T emperature Range
Commercial (A, B Versions) . . . . . . . . . . . –40
°
C to +85
°
C
Extended (S Version) . . . . . . . . . . . . . . . . –55
°
C to +125
°
C
Storage T emperature Range . . . . . . . . . . . . –65
°
C to +150
°
C
Lead T emperature (Soldering, 10 secs) . . . . . . . . . . . +300
°
C
Power Dissipation (Any Package) to +75
°
C . . . . . . 1,000 mW
Derates above +75
°
C by . . . . . . . . . . . . . . . . . . . . 10 mW/
°
C
*Stresses above those listed under “Absolute Maximum Ratings” may cause
permanent damage to the device. T his is a stress rating only and functional
operation of the device at these or any other conditions above those listed in the
operational sections of this specifications is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
TO OUTPUT
PIN
1.6mA
2.1V
+
200
μ
A
50pF
Figure 1. Load Circuit for Access Time
TO OUTPUT
PIN
1.6mA
2.1V
+
200
μ
A
50pF
Figure 2. Load Circuit for Bus Relinquish Time
WARNING!
ESD SENSITIVE DEVICE
C AUT ION
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 AD7874 features proprietary ESD protection circuitry, permanent damage may
occur on devices subjected to high energy electrostatic discharges. T herefore, 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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|---|---|
| AD7874SE/883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System |
| AD7874SE3 | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS 4-Channel, 12-Bit Simultaneous Sampling Data Acquisition System |
| AD7874SQ | 功能描述:IC DAS 12BIT 4CH 5V 28-CDIP RoHS:否 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 |
| AD7874SQ/883B | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Ended Data Acquisition System |
| AD7874SQ3 | 制造商:AD 制造商全稱:Analog Devices 功能描述:LC2MOS 4-Channel, 12-Bit Simultaneous Sampling Data Acquisition System |
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