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參數(shù)資料
| 型號： | EVAL-AD7783EB |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Read-Only, Pin Configured 24-Bit ADC with Excitation Current Sources |
| 中文描述： | 只讀，引腳配置24位ADC的勵磁電流源 |
| 文件頁數(shù)： | 3/12頁 |
| 文件大?。?/td> | 217K |
| 代理商： | EVAL-AD7783EB |
REV. B
AD7783
–3–
Parameter
AD7783B
Unit
Test Conditions
LOGIC INPUTS
All Inputs Except SCLK and XTAL1
2
V
INL
, Input Low Voltage
0.8
0.4
2.0
V max
V max
V min
V
DD
= 5 V
V
DD
= 3 V
V
DD
= 3 V or 5 V
V
INH
, Input High Voltage
SCLK Only (Schmitt-Triggered Input)
2
V
T(+)
V
T(
–
)
V
T(+)
–
V
T(
–
)
V
T(+)
V
T(
–
)
V
T(+)
–
V
T(
–
)
XTAL1 Only
2
V
INL
, Input Low Voltage
V
INH
, Input High Voltage
V
INL
, Input Low Voltage
V
INH
, Input High Voltage
Input Currents
1.4/2
0.8/1.4
0.3/0.85
0.95/2
0.4/1.1
0.3/0.85
V min/V max
V min/V max
V min/V max
V min/V max
V min/V max
V min/V max
V
DD
= 5 V
V
DD
= 5 V
V
DD
= 5 V
V
DD
= 3 V
V
DD
= 3 V
V
DD
= 3 V
0.8
3.5
0.4
2.5
±
1
–
70
V max
V min
V max
V min
m
A max
m
A max
V
DD
= 5 V
V
DD
= 5 V
V
DD
= 3 V
V
DD
= 3 V
V
IN
= V
DD
V
IN
= GND, Typically
–
40
m
A at 5 V and
–
20
m
A at 3 V
All Digital Inputs
Input Capacitance
10
pF typ
LOGIC OUTPUTS (Excluding XTAL2)
V
OH
, Output High Voltage
2
V
OL
, Output Low Voltage
2
V
OH
, Output High Voltage
2
V
OL
, Output Low Voltage
2
Floating-State Leakage Current
Floating-State Output Capacitance
Data Output Coding
V
DD
–
0.6
0.4
4
0.4
±
10
±
10
Offset Binary
V min
V max
V min
V max
m
A max
pF typ
V
DD
= 3 V, I
SOURCE
= 100
m
A
V
DD
= 3 V, I
SINK
= 100
m
A
V
DD
= 5 V, I
SOURCE
= 200
m
A
V
DD
= 5 V, I
SINK
= 1.6 mA
START-UP TIME
From Power-On
300
ms typ
POWER REQUIREMENTS
Power Supply Voltage
V
DD
–
GND
2.7/3.6
4.75/5.25
V min/V max
V min/V max
V
DD
= 3 V nom
V
DD
= 5 V nom
Power Supply Currents
I
DD
Current (Normal Mode)
4
1.5
1.7
9
24
mA max
mA max
m
A max
m
A max
V
DD
= 3 V, 1.3 mA typ
V
DD
= 5 V, 1.5 mA typ
V
DD
= 3 V, 6
m
A typ
V
DD
= 5 V, 20
m
A typ
I
DD
(Power-Down Mode,
CS
= 1)
NOTES
1
Temperature range
–
40
∞
C to +85
∞
C.
2
Guaranteed by design and/or characterization data on production release.
3
When a 28.8 kHz crystal is used, normal-mode rejection is improved so that the rejection equals 75 dB at 50 Hz
±
1 Hz and equals 66 dB at 60 Hz
±
1 Hz.
4
Normal mode refers to the case where the ADC is running.
Specifications subject to change without notice.
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