AD8555_09 Datasheet, PDF (5/28 Pages) Analog Devices – Zero-Drift, Digitally Programmable Sensor Signal Amplifier

AD8555
At VDD = 2.7 V, VSS = 0.0 V, VCM = 1.35 V, VO = 1.35 V, −40°C ≤ TA ≤ +125°C, unless otherwise specified.
Table 2.
Parameter
INPUT STAGE
Input Offset Voltage
Input Offset Voltage Drift
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Linearity
Differential Gain Accuracy
Differential Gain Temperature Coefficient
Symbol Conditions
VOS
TCVOS
IB
IOS
TA = 25°C
TA = 25°C
CMRR
VCM = 0.9 V to 1.3 V, AV = 70
VCM = 0.9 V to 1.3 V, AV = 1,280
VO = 0.2 V to 3.4 V
VO = 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 Typ Max Unit
2
10 μV
25 60 nV/°C
12 16
nA
0.2 1
nA
1.5 nA
0.5
1.6 V
80 92
dB
96 112
dB
20
ppm
1000
ppm
0.35
%
0.5
%
15
ppm/°C
40
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
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
ISC
VOL
VOH
ISY
PSRR
GBP
SR
ts
en p-p
THD
14 18 22 kΩ
700
ppm/°C
AV = 70, Offset Codes = 8 to 248
AV = 70, Offset Codes = 8 to 248
AV = 70, Offset Codes = 8 to 248
0.7
%
50
ppm
5
35 mV
3.3
ppm FS/°C
TA = 25°C, VCLAMP = 2.7 V
200
500
1.25
nA
nA
2.64 V
RL = 10 kΩ to 5 V
RL = 10 kΩ to 0 V
7
4.5
2.64
15 mV
9.5 mA
30 mV
V
VO = 1.35 V, VPOS = VNEG = 1.35 V,
2.0
mA
VDAC Code = 128
AV = 70
109 125
dB
First Gain Stage, TA = 25°C
Second Gain Stage, TA = 25°C
Output Buffer Stage
AV = 70, RL = 10 kΩ, CL = 100 pF
To 0.1%, AV = 70, 4 V Output Step
2
MHz
8
MHz
1.5
MHz
1.2
V/μs
8
μs
TA = 25°C, f = 1 kHz
f = 0.1 Hz to 10 Hz
VIN = 16.75 mV rms, f = 1 kHz, AV = 100
32
0.3
−100
nV/√Hz
μV p-p
dB
Rev. A | Page 5 of 28