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| 型號(hào)： | AD8555 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Zero-Drift, Digitally Programmable Sensor Signal Amplifier |
| 中文描述： | 零漂移，數(shù)字可編程傳感器信號(hào)放大器 |
| 文件頁(yè)數(shù)： | 5/28頁(yè) |
| 文件大小： | 503K |
| 代理商： | AD8555 |
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AD8555
At V
DD
= 2.7 V, V
SS
= 0.0 V, V
CM
= 1.35 V, V
O
= 1.35 V, 40°C ≤ T
A
≤ +125°C, unless otherwise specified.
Table 2.
Parameter
Symbol
INPUT STAGE
Input Offset Voltage
V
OS
Input Offset Voltage Drift
T
C
V
OS
Input Bias Current
I
B
Input Offset Current
I
OS
Input Voltage Range
Common-Mode Rejection Ratio
CMRR
Linearity
Differential Gain Accuracy
Differential Gain Temperature Coefficient
Rev. 0 | Page 5 of 28
Conditions
T
A
= 25°C
T
A
= 25°C
V
CM
= 0.9 V to 1.3 V, A
V
= 70
V
CM
= 0.9 V to 1.3 V, A
V
= 1,280
V
O
= 0.2 V to 3.4 V
V
O
= 0.2 V to 4.8 V
Second Stage Gain = 17.5 to 100
Second Stage Gain = 140 to 200
Second Stage Gain = 17.5 to 100
Second Stage Gain = 140 to 200
Min
12
0.5
80
96
Typ
2
25
16
0.2
92
112
20
1000
0.35
0.5
15
40
Max
10
60
1
1.5
1.6
Unit
μV
nV/°C
nA
nA
nA
V
dB
dB
ppm
ppm
%
%
ppm/°C
ppm/°C
RF
RF Temperature Coefficient
DAC
Accuracy
Ratiometricity
Output Offset
Temperature Coefficient
VCLAMP
Input Bias Current
Input Voltage Range
OUTPUT BUFFER STAGE
Buffer Offset
Short-Circuit Current
Output Voltage, Low
Output Voltage, High
POWER SUPPLY
Supply Current
I
SC
V
OL
V
OH
I
SY
A
V
= 70, Offset Codes = 8 to 248
A
V
= 70, Offset Codes = 8 to 248
A
V
= 70, Offset Codes = 8 to 248
T
A
= 25°C, VCLAMP = 2.7 V
R
L
= 10 k to 5 V
R
L
= 10 k to 0 V
V
O
= 1.35 V, VPOS = VNEG = 1.35 V,
VDAC Code = 128
A
V
= 70
First Gain Stage, T
A
= 25°C
Second Gain Stage, T
A
= 25°C
Output Buffer Stage
A
V
= 70, R
L
= 10 k, C
L
= 100 pF
To 0.1%, A
V
= 70, 4 V Output Step
T
A
= 25°C, f = 1 kHz
f = 0.1 Hz to 10 Hz
V
IN
= 16.75 mV rms, f = 1 kHz, A
V
= 100
14
1.25
4.5
2.64
18
700
0.7
50
5
3.3
200
500
7
2.0
22
35
2.64
15
9.5
30
k
ppm/°C
%
ppm
mV
ppm FS/°C
nA
nA
V
mV
mA
mV
V
mA
Power Supply Rejection Ratio
DYNAMIC PERFORMANCE
Gain Bandwidth Product
Output Buffer Slew Rate
Settling Time
NOISE PERFORMANCE
Input Referred Noise
Low Frequency Noise
Total Harmonic Distortion
PSRR
GBP
SR
t
s
e
n
p-p
THD
109
125
2
8
1.5
1.2
8
32
0.3
100
dB
MHz
MHz
MHz
V/μs
μs
nV/√Hz
μV p-p
dB
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