Data Sheet
AD8671/AD8672/AD8674
Rev. F | Page 3 of 20
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS, ±5.0 V
VS = ±5.0 V, VCM = 0 V, TA = 25°C, unless otherwise noted.
Table 2.
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Offset Voltage
VOS
20
75
V
–40°C < TA < +125°C
30
125
V
Offset Voltage Drift
VOS/T
–40°C < TA < +125°C
AD8671
0.3
0.5
V/°C
AD8672/AD8674
0.3
0.8
V/°C
Input Bias Current
IB
–12
+3
+12
nA
+25°C < TA < +125°C
–20
+5
+20
nA
–40°C < TA < +125°C
–40
+8
+40
nA
Input Offset Current
IOS
–12
+6
+12
nA
+25°C < TA < +125°C
–20
+6
+20
nA
–40°C < TA < +125°C
–40
+8
+40
nA
Input Voltage Range
–2.5
+2.5
V
Common-Mode Rejection Ratio
CMRR
VCM = –2.5 V to +2.5 V
100
120
dB
Large Signal Voltage Gain
AVO
RL = 2 k, VO = –3 V to +3 V
1000
6000
V/mV
Input Capacitance, Common Mode
CINCM
6.25
pF
Input Capacitance, Differential Mode
CINDM
7.5
pF
Input Resistance, Common Mode
RIN
3.5
G
Input Resistance, Differential Mode
RINDM
15
M
OUTPUT CHARACTERISTICS
Output Voltage High
VOH
RL = 2 k, –40°C to +125°C
+3.8
+4.0
V
Output Voltage Low
VOL
RL = 2 k, –40°C to +125°C
–3.9
–3.8
V
Output Voltage High
VOH
RL = 600
+3.7
+3.9
V
Output Voltage Low
VOL
RL = 600
–3.8
–3.7
V
Output Current
IOUT
±10
mA
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
VS = ±4 V to ±18 V
AD8671/AD8672
110
130
dB
AD8674
106
115
dB
Supply Current/Amplifier
ISY
VO = 0 V
3
3.5
mA
–40°C < TA < +125°C
4.2
mA
DYNAMIC PERFORMANCE
Slew Rate
SR
RL = 2 k
4
V/s
Settling Time
tS
To 0.1% (4 V step, G = 1)
1.4
s
To 0.01% (4 V step, G = 1)
5.1
s
Gain Bandwidth Product
GBP
10
MHz
NOISE PERFORMANCE
Peak-to-Peak Noise
en p-p
0.1 Hz to 10 Hz
77
100
nV p-p
Voltage Noise Density
en
f = 1 kHz
2.8
3.8
nV/√Hz
Current Noise Density
in
f = 1 kHz
0.3
pA/√Hz
Channel Separation
AD8672/AD8674
CS
f = 1 kHz
–130
dB
f = 10 kHz
–105
dB