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AD8555ACP-R2 数据表(PDF) 3 Page - Analog Devices

部件名 AD8555ACP-R2
功能描述  Zero-Drift, Digitally Programmable Sensor Signal Amplifier
PDF  28 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

AD8555ACP-R2 数据表(HTML) 3 Page - Analog Devices

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AD8555
Rev. 0 | Page 3 of 28
ELECTRICAL SPECIFICATIONS
At VDD = 5.0 V, VSS = 0.0 V, VCM = 2.5 V, VO = 2.5 V, −40°C ≤ TA ≤ +125°C, unless otherwise specified.
Table 1.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
INPUT STAGE
Input Offset Voltage
VOS
2
10
µV
Input Offset Voltage Drift
TCVOS
25
65
nV/°C
Input Bias Current
IB
TA = 25°C
12
16
22
nA
25
nA
Input Offset Current
IOS
TA = 25°C
0.2
1
nA
1.5
nA
Input Voltage Range
0.6
3.8
V
Common-Mode Rejection Ratio
CMRR
VCM = 0.9 V to 3.6 V, AV = 70
80
92
dB
VCM = 0.9 V to 3.6 V, AV = 1,280
96
112
dB
Linearity
VO = 0.2 V to 3.4 V
20
ppm
VO = 0.2 V to 4.8 V
1000
ppm
Differential Gain Accuracy
Second Stage Gain = 17.5 to 100
0.35
1.6
%
Second Stage Gain = 140 to 200
0.5
2.5
%
Differential Gain Temperature Coefficient
Second Stage Gain = 17.5 to 100
15
40
ppm/°C
Second Stage Gain = 140 to 200
40
100
ppm/°C
RF
14
18
22
kΩ
RF Temperature Coefficient
700
ppm/°C
DAC
Accuracy
AV = 70, Offset Codes = 8 to 248
0.7
0.8
%
Ratiometricity
AV = 70, Offset Codes = 8 to 248
50
ppm
Output Offset
AV = 70, Offset Codes = 8 to 248
5
35
mV
Temperature Coefficient
3.3
15
ppm FS/°C
VCLAMP
Input Bias Current
TA = 25°C, VCLAMP = 5 V
200
nA
500
nA
Input Voltage Range
1.25
4.94
V
OUTPUT BUFFER STAGE
Buffer Offset
7
15
mV
Short-Circuit Current
ISC
5
10
mA
Output Voltage, Low
VOL
RL = 10 kΩ to 5 V
30
mV
Output Voltage, High
VOH
RL = 10 kΩ to 0 V
4.94
V
POWER SUPPLY
Supply Current
ISY
VO = 2.5 V, VPOS = VNEG = 2.5V,
VDAC Code = 128
2.0
2.5
mA
Power Supply Rejection Ratio
PSRR
AV = 70
109
125
dB
DYNAMIC PERFORMANCE
Gain Bandwidth Product
GBP
First Gain Stage, TA = 25°C
2
MHz
Second Gain Stage, TA = 25°C
8
MHz
Output Buffer Stage
1.5
MHz
Output Buffer Slew Rate
SR
AV = 70, RL = 10 kΩ, C L = 100 pF
1.2
V/µs
Settling Time
ts
To 0.1%, AV = 70, 4 V Output Step
8
µs
NOISE PERFORMANCE
Input Referred Noise
TA = 25°C, f = 1 kHz
32
nV/√Hz
Low Frequency Noise
en p-p
f = 0.1 Hz to 10 Hz
0.5
µV p-p
Total Harmonic Distortion
THD
VIN = 16.75 mV rms, f = 1 kHz, AV = 100
−100
dB



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