Datasheet

Data Sheet
AD8655/AD8656
Rev. D | Page 3 of 20
SPECIFICATIONS
V
S
= 5.0 V, V
CM
= V
S
/2, T
A
= 25°C, unless otherwise specified.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
V
CM
= 0 V to 5 V 50 250 µV
−40°C ≤ T
A
≤ +125°C 550 µV
Offset Voltage Drift
∆V
OS
/∆T
−40°C ≤ T
A
≤ +125°C 0.4 2.3 µV/°C
Input Bias Current I
B
1 10 pA
−40°C ≤ T
A
≤ +125°C
500
pA
Input Offset Current I
OS
10 pA
−40°C ≤ T
A
≤ +125°C 500 pA
Input Voltage Range 0 5 V
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 5 V 85 100 dB
Large Signal Voltage Gain A
VO
V
O
= 0.2 V to 4.8 V, R
L
= 10 kΩ, V
CM
= 0 V 100 110 dB
−40°C ≤ T
A
≤ +125°C 95 dB
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
I
L
= 1 mA; −40°C ≤ T
A
≤ +125°C 4.97 4.991 V
Output Voltage Low
V
OL
I
L
= 1 mA; −40°C ≤ T
A
≤ +125°C
8
30
mV
Output Current I
OUT
V
OUT
= ±0.5 V ±220 mA
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= 2.7 V to 5.0 V 88 105 dB
Supply Current/Amplifier I
SY
V
O
= 0 V 3.7 4.5 mA
−40°C ≤ T
A
≤ +125°C 5.3 mA
INPUT CAPACITANCE C
IN
Differential 9.3 pF
Common-Mode 16.7 pF
NOISE PERFORMANCE
Input Voltage Noise Density e
n
f = 1 kHz 4
nV/√Hz
f = 10 kHz 2.7
nV/√Hz
Total Harmonic Distortion + Noise THD + N G = 1, R
L
= 1 kΩ, f = 1 kHz, V
IN
= 2 V p-p 0.0007 %
FREQUENCY RESPONSE
Gain Bandwidth Product GBP 28 MHz
Slew Rate
SR
R
L
= 10 kΩ
11
V/µs
Settling Time ts To 0.1%, V
IN
= 0 V to 2 V step, G = +1 370 ns
Phase Margin C
L
= 0 pF 69 degrees
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