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參數(shù)資料
| 型號： | AD7887AR |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | ADC |
| 英文描述： | +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC |
| 中文描述： | 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | 0.150 INCH, MS-012AA, SOIC-8 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大小： | 133K |
| 代理商： | AD7887AR |
REV. B
AD7887
TIMNGSPECIFICATIONS
1
–4–
+4.75 V to +5.25 V
Limit at T
MIN
, T
MAX
(A, B Versions)
Parameter
f
SCLK2
t
CONVERT
t
ACQ
t
1
t
23
t
33
t
4
t
5
t
6
t
7
t
84
t
9
+2.7 V to +3.6 V
Units
Description
2
14.5 t
SCLK
1.5 t
SCLK
10
30
75
20
20
0.4 t
SCLK
0.4 t
SCLK
80
5
2
14.5 t
SCLK
1.5 t
SCLK
10
60
100
20
20
0.4 t
SCLK
0.4 t
SCLK
80
5
MHz max
T hroughput T ime = t
CONVERT
+ t
ACQ
= 16 t
SCLK
CS
to SCLK Setup T ime
Delay from
CS
Until DOUT T hree-State Disabled
Data Access T ime after SCLK Falling Edge
Data Setup T ime Prior to SCLK Rising Edge
Data Valid to SCLK Hold T ime
SCLK High Pulsewidth
SCLK Low Pulsewidth
CS
Rising Edge to DOUT High Impedance
Power-Up T ime from Shutdown
ns min
ns max
ns max
ns min
ns min
ns min
ns min
ns max
μ
s typ
NOT ES
1
Sample tested at +25
°
C to ensure compliance. All input signals are specified with tr = tf = 5 ns (10% to 90% of V
DD
) and timed from a voltage level of 1.6 volts.
2
Mark/Space ratio for the SCLK input is 40/60 to 60/40.
3
Measured with the load circuit of Figure 1 and defined as the time required for the output to cross 0.8 V or 2.0 V.
4
t
is derived from the measured time taken by the data outputs to change 0.5 V when loaded with the circuit of Figure 1. 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
8
, quoted in the timing characteristics is the true bus relinquish time of
the part and is independent of the bus loading.
Specifications subject to change without notice.
+1.6V
I
OL
200
m
A
200
m
A
I
OH
TO
OUTPUT
PIN
C
L
50pF
Figure 1. Load Circuit for Digital Output Timing Specifications
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| AD7887ARM | +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC |
| AD7887BR | +2.7 V to +5.25 V, Micropower, 2-Channel, 125 kSPS, 12-Bit ADC in 8-Lead uSOIC |
| AD7888(中文) | 2.7 V to 5.25 V, Micro Power, 8-Channel,125kSPS,12-Bit ADC(微功耗,125kSPS,8通道12位A/D轉(zhuǎn)換器) |
| AD7888 | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
| AD7888AR | +2.7 V to +5.25 V, Micropower, 8-Channel, 125 kSPS, 12-Bit ADC in 16-Lead TSSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD7887ARM | 功能描述:IC ADC 12BIT 2CH SRL 8-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| AD7887ARM-REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 125ksps 12-bit Serial 8-Pin MSOP T/R |
| AD7887ARM-REEL7 | 功能描述:IC ADC 12BIT 2CH SRL 8-MSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類型:2 個單端，單極 |
| AD7887ARMZ | 功能描述:IC ADC 12BIT 2CH SRL 8MSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 其它有關(guān)文件:TSA1204 View All Specifications 標(biāo)準(zhǔn)包裝:1 系列:- 位數(shù):12 采樣率（每秒）:20M 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:155mW 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:48-TQFP 供應(yīng)商設(shè)備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數(shù)目和類型:4 個單端，單極；2 個差分，單極 產(chǎn)品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| AD7887ARMZ | 制造商:Analog Devices 功能描述:IC ADC 12BIT 125KSPS MSOP-8 |
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