Datasheet

AD8615/AD8616/AD8618
Rev. E | Page 3 of 20
SPECIFICATIONS
V
S
=5 V, V
CM
= V
S
/2, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage, AD8616/AD8618 V
OS
V
S
= 3.5 V at V
CM
= 0.5 V and 3.0 V 23 60 μV
Offset Voltage, AD8615 23 100 μV
V
CM
= 0 V to 5 V 80 500 μV
−40°C < T
A
< +125°C 800 μV
Offset Voltage Drift, AD8616/AD8618 ∆V
OS
/∆T −40°C < T
A
< +125°C 1.5 7 μV/°C
Offset Voltage Drift, AD8615 3 10 μV/°C
Input Bias Current I
B
0.2 1 pA
−40°C < T
A
< +85°C 50 pA
−40°C < T
A
< +125°C 550 pA
Input Offset Current I
OS
0.1 0.5 pA
−40°C < T
A
< +85°C 50 pA
−40°C < T
A
< +125°C 250 pA
Input Voltage Range 0 5 V
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 4.5 V 80 100 dB
Large Signal Voltage Gain A
VO
R
L
= 2 kΩ, V
O
= 0.5 V to 5 V 105 1500 V/mV
Input Capacitance C
DIFF
2.5 pF
C
CM
6.7 pF
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 1 mA 4.98 4.99 V
I
L
= 10 mA 4.88 4.92 V
−40°C < T
A
< +125°C 4.7 V
Output Voltage Low V
OL
I
L
= 1 mA 7.5 15 mV
I
L
= 10 mA 70 100 mV
−40°C < T
A
< +125°C 200 mV
Output Current I
OUT
±150 mA
Closed-Loop Output Impedance Z
OUT
f = 1 MHz, A
V
= 1 3 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= 2.7 V to 5.5 V 70 90 dB
Supply Current per Amplifier I
SY
V
O
= 0 V 1.7 2 mA
−40°C < T
A
< +125°C 2.5 mA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 2 kΩ 12 V/μs
Settling Time t
S
To 0.01% <0.5 μs
Gain Bandwidth Product GBP 24 MHz
Phase Margin Ø
m
63 Degrees
NOISE PERFORMANCE
Peak-to-Peak Noise e
n
p-p 0.1 Hz to 10 Hz 2.4 μV
Voltage Noise Density e
n
f = 1 kHz 10 nV/√Hz
f = 10 kHz 7 nV/√Hz
Current Noise Density i
n
f = 1 kHz 0.05 pA/√Hz
Channel Separation C
S
f = 10 kHz −115 dB
f = 100 kHz −110 dB