OP281 Просмотр технического описания (PDF) - Analog Devices
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OP281 Datasheet PDF : 24 Pages
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Data Sheet
ELECTRICAL CHARACTERISTICS—2.7 V OPERATION
VSY = 2.7 V, VCM = VSY/2, TA = 25°C, unless otherwise noted.
Table 4.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Offset Voltage Drift
Input Bias Current
Input Offset Current
Input Voltage Range
Common-Mode Rejection Ratio
Large Signal Voltage Gain
Input Resistance
Input Capacitance
Differential Mode
Common Mode
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
Closed-Loop Output Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current per Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Settling Time to 0.1%
Gain Bandwidth Product
Phase Margin
Channel Separation
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Current Noise Density
Symbol Test Conditions/Comments
Min
VOS
VCM = 0 V to 2.7 V
VCM = 0.3 V to 2.4 V; −40°C ≤ TA ≤ +125°C
VCM = 0 V to 2.7 V; −40°C ≤ TA ≤ +125°C
ΔVOS/ΔT
IB
−40°C ≤ TA ≤ +125°C
IOS
−40°C ≤ TA ≤ +125°C
IVR
0
CMRR
AVO
RIN
VCM = 0 V to 2.7 V
60
VCM = 0.3 V to 2.4 V; −40°C ≤ TA ≤ +125°C 58
VCM = 0 V to 2.7 V; −40°C ≤ TA ≤ +125°C
49
RL = 100 kΩ; VO = 0.5 V to 2.2 V
97
−40°C ≤ TA ≤ +125°C
90
CINDM
CINCM
VOH
RL = 100 kΩ to VCM; −40°C ≤ TA ≤ +125°C 2.69
VOL
RL = 100 kΩ to VCM; −40°C ≤ TA ≤ +125°C
ISC
ZOUT
f = 1 kHz; AV = +1
PSRR
VSY = 2.7 V to 18 V
95
−40°C ≤ TA ≤ +125°C
90
ISY
IO = 0 mA
−40°C ≤ TA ≤ +125°C
SR
RL = 1 MΩ; CL = 10 pF; AV = +1
tS
VIN = 1 V step; RL = 100 kΩ; CL = 10 pF
GBP
RL = 1 MΩ; CL = 10 pF; AV = +1
ΦM
RL = 1 MΩ; CL = 10 pF; AV = +1
CS
f = 10 kHz; RL = 1 MΩ
en p-p
en
in
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 10 kHz
f = 1 kHz
AD8546/AD8548
Typ
Max
Unit
3
mV
4
mV
12
mV
3
µV/°C
1
10
pA
2.6
nA
20
pA
5.2
nA
2.7
V
75
dB
dB
dB
115
dB
dB
10
GΩ
3.5
pF
3.5
pF
V
10
mV
±4
mA
20
Ω
115
dB
dB
18
22
µA
33
µA
50
V/ms
20
µs
190
kHz
60
Degrees
105
dB
6
µV p-p
60
nV/√Hz
56
nV/√Hz
0.1
pA/√Hz
Rev. B | Page 5 of 24
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