Datasheet

AD8661/AD8662/AD8664
Rev. D | Page 5 of 16
AD8661 ELECTRICAL CHARACTERISTICS—LFCSP_VD ONLY
V
S
= 5.0 V, V
CM
= V
S
/2, T
A
= 25°C, unless otherwise noted.
Table 3.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
V
CM
= V
S
/2 50 300 μV
−40°C < T
A
< +85°C 2000 μV
Input Bias Current I
B
0.3 1 pA
−40°C < T
A
< +85°C 50 pA
Input Offset Current I
OS
0.2 0.5 pA
−40°C < T
A
< +85°C 20 pA
Input Voltage Range −0.1 +3.0 V
Common-Mode Rejection Ratio CMRR V
CM
= −0.1 V to +3.0 V 85 100 dB
−40°C < T
A
< +85°C 80 100 dB
Large Signal Voltage Gain A
VO
R
L
= 2 kΩ, V
O
= 0.5 V to 4.5 V 100 240 V/mV
Offset Voltage Drift TCV
OS
−40°C < T
A
< +85°C 4 17 μV/°C
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 1 mA 4.85 4.93 V
−40°C < T
A
< +85°C 4.80 V
Output Voltage Low V
OL
I
L
= 1 mA 50 100 mV
−40°C < T
A
< +85°C 120 mV
Short-Circuit Current I
SC
±19 mA
Closed-Loop Output Impedance Z
OUT
f = 1 MHz, A
V
= 1 65 Ω
POWER SUPPLY
Supply Current per Amplifier I
SY
V
O
= V
S
/2 1.15 1.40 mA
−40°C < T
A
< +85°C 1.8 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 2 kΩ 3.5 V/μs
Gain Bandwidth Product GBP 4 MHz
Phase Margin Φ
O
65 Degrees
NOISE PERFORMANCE
Peak-to-Peak Noise e
n
p-p f = 0.1 Hz to 10 Hz 2.5 μV p-p
Voltage Noise Density e
n
f = 1 kHz 12 nV/√Hz
f = 10 kHz 10 nV/√Hz
Current Noise Density i
n
f = 1 kHz 0.1 pA/√Hz