Datasheet

Data Sheet AD8622/AD8624
Rev. D | Page 3 of 20
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—±2.5 V OPERATION
V
SY
= ±2.5 V, V
CM
= 0 V, T
A
= 25°C, unless otherwise specified.
Table 2.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
10 125 μV
−40°C ≤ T
A
≤ +125°C 230 μV
Offset Voltage Drift
ΔV
OS
/ΔT
−40°C ≤ T
A
≤ +125°C
0.5
1.2
µV/°C
Input Bias Current I
B
30 200 pA
−40°C ≤ T
A
≤ +125°C 400 pA
Input Offset Current I
OS
25 200 pA
−40°C ≤ T
A
≤ +125°C 300 pA
Input Voltage Range −40°C ≤ T
A
≤ +125°C −1.3 +1.3 V
Common-Mode Rejection Ratio CMRR V
CM
= −1.3 V to +1.3 V 110 120 dB
−40°C ≤ T
A
≤ +125°C 107 dB
Open-Loop Gain A
VO
R
L
= 10 kΩ, V
O
= −2.0 V to +2.0 V 118 135 dB
−40°C ≤ T
A
≤ +125°C 109 dB
Input Resistance, Differential Mode R
INDM
1 GΩ
Input Resistance, Common Mode
R
INCM
1
TΩ
Input Capacitance, Differential Mode C
INDM
5.5 pF
Input Capacitance, Common Mode C
INCM
3 pF
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
R
L
= 100 kΩ to ground 2.45 2.49 V
−40°C ≤ T
A
≤ +125°C 2.41 V
R
L
= 10 kΩ to ground 2.40 2.45 V
−40°C ≤ T
A
≤ +125°C 2.36 V
Output Voltage Low V
OL
R
L
= 100 kΩ to ground −2.49 −2.45 V
−40°C ≤ T
A
≤ +125°C −2.41 V
R
L
= 10 kΩ to ground −2.45 −2.40 V
−40°C ≤ T
A
≤ +125°C −2.36 V
Short-Circuit Current I
SC
±30 mA
Closed-Loop Output Impedance Z
OUT
f = 1 kHz, A
V
= 1 2 Ω
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= ±2.0 V to ±18.0 V 125 145 dB
−40°C ≤ T
A
≤ +125°C 120 dB
Supply Current/Amplifier I
SY
I
O
= 0 mA 175 225 μA
−40°C ≤ T
A
≤ +125°C 310 μA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 10 kΩ, C
L
= 100 pF A
V
= 1 0.28 V/μs
Gain Bandwidth Product
GBP R
L
= 10 kΩ, C
L
= 20 pF, A
V
= 1 540 kHz
Phase Margin Φ
M
R
L
= 10 kΩ, C
L
= 20 pF, A
V
= 1 74 Degrees
NOISE PERFORMANCE
Voltage Noise e
n
p-p f = 0.1 Hz to 10 Hz 0.2 μV p-p
Voltage Noise Density e
n
f = 1 kHz 12 nV/√Hz
Uncorrelated Current Noise Density i
n_uncorr
f = 1 kHz 0.15 pA/√Hz
Correlated Current Noise Density i
n_corr
f = 1 kHz 0.07 pA/√Hz