MAX478/MAX479
17µA Max, Dual/Quad, Single-Supply,
Precision Op Amps
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PARAMETER SYMBOL CONDITIONS
MAX478AC
MAX479AC
MIN TYP MAX
MAX478C/E
MAX479C/E
MIN TYP MAX
UNITS
Output Voltage Swing
V
OUT
Output low, no load 6.5 9.0 6.5 9.0
mVOutput low, 2kΩ to GND 0.2 0.6 0.2 0.6
Output low, I
SINK
= 100µA
120 160 120 160
4.2 4.4
V
Output high, 2kΩ to GND 3.5 3.8 3.5 3.8
Slew Rate SR
A
V
= +1, C
L
= 1pF (Note 1)
0.013 0.025 0.013 0.025 V/µs
Gain-Bandwidth Product GBW
f
O
≤ 5kHz
60 60 kHz
Channel Separation
∆V
IN
= 3V, R
L
= 10kΩ
130 130 dB
Minimum Supply Voltage V
S
(Note 2) 2.0 2.2 2.0 2.2 V
I
S
13 18 14 21
µA
Supply Current per
Amplifier
V
S
= ±1.5V, V
O
= 0V
12 17 13 20
Output high, no load
ELECTRICAL CHARACTERISTICS: 5V (continued)
(V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V, T
A
= +25°C, unless otherwise noted.)
4.2 4.4
ELECTRICAL CHARACTERISTICS: 5V
(V
S
= 5V, 0V, V
CM
= 0.1V, V
O
= 1.4V, T
A
= 0°C to +70°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS
MAX478AC
MAX479AC
MIN TYP MAX
MAX478C
MAX479C
MIN TYP MAX
UNITS
MAX479CS 130 400
Input Offset Voltage
V
OS
MAX478ACP/CP 50 170 65 250
µV
MAX479ACP/CP 60 200 70 290
MAX478CS 120 300
Input Offset Voltage Drift
∆V
OS
∆T
MAX47_ACP/CP (Note 1) 0.5 2.2 0.6 3.0
µV/°C
MAX47_CS (Note 1) 0.8 4.5
Input Offset Current
I
OS
0.06 0.35 0.06 0.50 nA
Input Bias Current
I
B
36 37 nA
CMRR
V
CM
= 0V to 3.4V
90 101 86 100 dB
Power-Supply
Rejection Ratio
PSRR
V
S
= 2.5V to 12V
90 102 88 102 dB
Large-Signal
Voltage Gain
A
VOL
105 500 80 500
V/mV
55 160 45 160
Output Voltage Swing
V
OUT
Output low, no load 8 11 8 11
mV
Output low, I
SINK
= 100µA
140 190 140 190
Output high, no load 4.1 4.3 4.1 4.3
V
Output high, 2kΩ to GND 3.3 3.8 3.3 3.8
Supply Current per Amplifier
I
S
14 21 15 24 µA
Common-Mode
Rejection Ratio
V
O
= 0.05V to 4V, no load (Note 1)
V
O
= 0.05V to 3.5V, R
L
= 50kΩ
