Datasheet

AD8538/AD8539 Data Sheet
Rev. B | Page 6 of 24
@ V
S
= 2.7 V, V
CM
= 1.35 V, V
O
= 1.35 V, T
A
= 25°C, unless otherwise specified.
Table 4.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
5 16 µV
−40°C ≤ T
A
≤ +125°C 30 µV
Input Bias Current
I
B
15
25
pA
−40°C ≤ T
A
≤ +85°C 35 125 pA
−40°C ≤ T
A
≤ +125°C 0.7 1.0 nA
Input Offset Current I
OS
20 50 pA
−40°C ≤ T
A
≤ +125°C 300 pA
Input Voltage Range
0
2.7
V
−40°C ≤ T
A
≤ +125°C 0.2 2.5
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 2.7 V 110 130 dB
−40°C ≤ T
A
≤ +125°C, V
CM
= 0.2 V to 2.5 V 100 125 dB
Large Signal Voltage Gain A
VO
R
L
= 10 kΩ, V
O
= 0.1 V to 2.6 V 110 130 dB
−40°C ≤ T
A
≤ +125°C 105 125 dB
Offset Voltage Drift
∆
V
OS
/
∆
T
−40°C ≤ T
A
≤ +125°C 0.03 0.1 µV/°C
OUTPUT CHARACTERISTICS
Output Voltage High
V
OH
R
L
= 100 kΩ to ground
2.68
2.693
V
−40°C ≤ T
A
≤ +125°C, R
L
= 100 kΩ to ground 2.68 V
R
L
= 10 kΩ to ground 2.67 2.68 V
−40°C ≤ T
A
≤ +125°C, R
L
= 10 kΩ to ground 2.66 V
Output Voltage Low V
OL
R
L
= 100 kΩ to V+ 5 7 mV
−40°C ≤ T
A
≤ +125°C, R
L
= 100 kΩ to V+ 6 8 mV
R
L
= 10 kΩ to V+ 14 20 mV
−40°C ≤ T
A
≤ +125°C, R
L
= 10 kΩ to V+ 20 25 mV
Short-Circuit Limit I
SC
±8 mA
POWER SUPPLY
Power Supply Rejection Ratio PSRR V
S
= 2.7 V to 5.5 V 105 125 dB
−40°C ≤ T
A
≤ +125°C 100 125 dB
Supply Current/Amplifier I
SY
I
O
= 0 210 µA
−40°C ≤ T
A
≤ +125°C 225 µA
DYNAMIC PERFORMANCE
Slew Rate SR R
L
= 10 kΩ 0.35 V/µs
Settling Time 0.01% t
S
G = ±1, 1 V step, C
L
= 20 pF, R
L
= ∞ 8 μs
Overload Recovery Time 0.05 ms
Gain Bandwidth Product GBP 430 kHz
Phase Margin Ø
M
R
L
= 10 kΩ, R
L
= 100 kΩ, C
L
= 20 pF 65 Degrees
NOISE PERFORMANCE
Voltage Noise e
n p-p
f = 0.1 Hz to 10 Hz 2.0 µV p-p
Voltage Noise Density e
n
f = 1 kHz 55
nV/√Hz