AD8546
Rev. A | Page 5 of 24
ELECTRICAL CHARACTERISTICS—18 V OPERATION
VSY = 18 V, VCM = VSY/2, TA = 25°C, unless otherwise specified.
Table 4.
Parameter
Symbol
Test Conditions/Comments
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Offset Voltage
V
OS
V
CM = 0 V to 18 V
3
mV
V
CM = 0.3 V to 17.7 V; 40°C ≤ TA ≤ +85°C
4.5
mV
V
CM = 0 V to 18 V; 40°C ≤ TA ≤ +85°C
5
mV
V
CM = 0.3 V to 17.7 V; 40°C ≤ TA ≤ +125°C
11
mV
V
CM = 0 V to 18 V; 40°C ≤ TA ≤ +125°C
14
mV
Input Bias Current
I
B
5
20
pA
40°C ≤ T
A ≤ +125°C
2.9
nA
Input Offset Current
I
OS
40
pA
40°C ≤ T
A ≤ +125°C
500
pA
Input Voltage Range
0
18
V
Common-Mode Rejection Ratio
CMRR
V
CM = 0 V to 18 V
80
95
dB
V
CM = 0.3 V to 17.7 V; 40°C ≤ TA ≤ +85°C
77
dB
V
CM = 0 V to 18 V; 40°C ≤ TA ≤ +85°C
72
dB
V
CM = 0.3 V to 17.7 V; 40°C ≤ TA ≤ +125°C
65
dB
V
CM = 0 V to 18 V; 40°C ≤ TA ≤ +125°C
63
dB
Large Signal Voltage Gain
A
VO
R
L = 100 k; VO = 0.5 V to 17.5 V
88
100
dB
40°C ≤ T
A ≤ +85°C
82
dB
40°C ≤ T
A ≤ +125°C
73
dB
Offset Voltage Drift
ΔV
OS/ΔT
3
V/°C
Input Resistance
R
IN
10
G
Input Capacitance
Differential Mode
C
INDM
3.5
pF
Common Mode
C
INCM
10.5
pF
OUTPUT CHARACTERISTICS
Output Voltage High
V
OH
R
L = 100 k to VCM; 40°C ≤ TA ≤ +125°C
17.97
V
Output Voltage Low
V
OL
R
L = 100 k to VCM; 40°C ≤ TA ≤ +125°C
30
mV
Short-Circuit Current
I
SC
±12
mA
Closed-Loop Output Impedance
Z
OUT
f = 1 kHz; A
V = +1
15
POWER SUPPLY
Power Supply Rejection Ratio
PSRR
V
SY = 2.7 V to 18 V
90
120
dB
40°C ≤ T
A ≤ +125°C
70
dB
Supply Current per Amplifier
I
SY
I
O = 0 mA
18
22
A
40°C ≤ T
A ≤ +125°C
33
A
DYNAMIC PERFORMANCE
Slew Rate
SR
R
L = 1 M; CL = 10 pF; AV = +1
70
V/ms
Settling Time to 0.1%
t
S
V
IN = 1 V step; RL = 100 k; CL = 10 pF
12
s
Gain Bandwidth Product
GBP
R
L = 1 M; CL = 10 pF; AV = +1
200
kHz
Phase Margin
Φ
M
R
L = 1 M; CL = 10 pF; AV = +1
60
Degrees
Channel Separation
CS
f = 10 kHz; R
L = 1 M
105
dB
NOISE PERFORMANCE
Voltage Noise
e
n p-p
f = 0.1 Hz to 10 Hz
5
V p-p
Voltage Noise Density
e
n
f = 1 kHz
50
nV/√Hz
f = 10 kHz
45
nV/√Hz
Current Noise Density
i
n
f = 1 kHz
0.1
pA/√Hz