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參數(shù)資料
| 型號(hào)： | EVAL-AD7887CB |
| 廠商： | Analog Devices, Inc. |
| 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： | 2.7 V至5.25 V，微功耗，2通道，125 kSPS的，12位ADC的8引腳uSOIC |
| 文件頁數(shù)： | 3/16頁 |
| 文件大?。?/td> | 133K |
| 代理商： | EVAL-AD7887CB |
REV. B
–3–
AD7887
Parameter
A Version
1
B Version
1
Units
T est Conditions/Comments
POWER REQUIREMENT S
V
DD
I
DD
Normal Mode
5
(Mode 2)
Static
Operational (f
SAMPLE
= 125 kSPS) 850
+2.7/+5.25
+2.7/+5.25
V min/max
700
700
850
700
450
120
12
210
1
2
3.5
2.1
5
3
1.05
630
μ
A max
μ
A typ
μ
A typ
μ
A typ
μ
A typ
μ
A typ
μ
A max
μ
A max
μ
A max
mW max
mW max
μ
W max
μ
W max
mW max
μ
W max
Internal Reference Enabled
Internal Reference Disabled
f
SAMPLE
= 50 kSPS
f
SAMPLE
= 10 kSPS
f
SAMPLE
= 1 kSPS
V
DD
= +2.7 V to +5.25 V
V
DD
= +2.7 V to +3.6 V
V
DD
= +4.75 V to +5.25 V
V
DD
= +5 V
V
DD
= +3 V
V
DD
= +5 V
V
DD
= +3 V
V
DD
= +5 V
V
DD
= +3 V
700
450
120
12
210
1
2
3.5
2.1
5
3
1.05
630
Using Standby Mode (Mode 4)
Using Shutdown Mode (Modes 1, 3)
Standby Mode
6
Shutdown Mode
6
Normal Mode Power Dissipation
Shutdown Power Dissipation
Standby Power Dissipation
NOT ES
1
T emperature ranges as follows: A, B Versions: –40
°
C to +125
°
C.
2
See T erminology.
3
SNR calculation includes distortion and noise components.
4
Sample tested @ +25
°
C to ensure compliance.
5
All digital inputs @ GND except
CS
@ V
DD
. No load on the digital outputs. Analog inputs @ GND.
6
SCLK @ GND when SCLK off. All digital inputs @ GND except for
CS
@ V
DD
. No load on the digital outputs. Analog inputs @ GND.
Specifications subject to change without notice.
ABSOLUT E MAX IMUM RAT INGS
1
(T
A
= +25
°
C unless otherwise noted)
V
DD
to AGND . . . . . . . . . . . . . . . . . . . . . . . . . –0.3 V to +7 V
Analog Input Voltage to AGND . . . . . –0.3 V to V
DD
+ 0.3 V
Digital Input Voltage to AGND . . . . . . –0.3 V to V
DD
+ 0.3 V
Digital Output Voltage to AGND . . . . –0.3 V to V
DD
+ 0.3 V
REF
IN
/REF
OUT
to AGND . . . . . . . . . . –0.3 V to V
DD
+ 0.3 V
Input Current to Any Pin Except Supplies
2
Operating T emperature Range
Commercial
A, B Versions . . . . . . . . . . . . . . . . . . . . –40
°
C to +125
°
C
Storage T emperature Range . . . . . . . . . . . –65
°
C to +150
°
C
Junction T emperature . . . . . . . . . . . . . . . . . . . . . . . . . +150
°
C
. . . . . . .
±
10 mA
SOIC,
μ
SOIC Package, Power Dissipation . . . . . . . . 450 mW
θ
JA
T hermal Impedance . . . . . . . . . . . . . . 157
°
C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 205.9
°
C/W (
μ
SOIC)
θ
JC
T hermal Impedance . . . . . . . . . . . . . . . 56
°
C/W (SOIC)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43.74
°
C/W (
μ
SOIC)
Lead T emperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . +215
°
C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . +220
°
C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 kV
NOT ES
1
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. T his 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.
2
T ransient currents of up to 100 mA will not cause SCR latch-up.
ORDE RING GUIDE
Model
Linearity E rror (LSB)
1
±
2
±
2
±
1
Evaluation Board
Controller Board
Package Options
2
Branding
AD7887AR
AD7887ARM
AD7887BR
EVAL-AD7887CB
3
EVAL-CONT ROL BOARD
4
SO-8
RM-8
SO-8
AD7887AR
C5A
AD7887BR
NOT ES
1
Linearity error here refers to integral linearity error.
2
SO = SOIC; RM =
μ
SOIC.
3
T his can be used as a stand-alone evaluation board or in conjunction with the EVAL-CONT ROL BOARD for evaluation/demonstration purposes.
4
T his board is a complete unit allowing a PC to control and communicate with all Analog Devices evaluation boards ending in the CB designators.
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