MAX478-MAX479 MAXIM [Maxim Integrated Products], MAX478-MAX479 Datasheet

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MAX478-MAX479

Manufacturer Part Number
MAX478-MAX479
Description
17?A Max, Dual/Quad, Single-Supply, Precision Op Amps
Manufacturer
MAXIM [Maxim Integrated Products]
Datasheet
19-0127; Rev. 1; 11/98
The MAX478 and MAX479 are dual and quad micro-
power, precision op amps available in 8-pin and 14-pin
DIP and small-outline packages, respectively. Both
devices feature an extremely low, 17µA max supply
current per op amp, 70µV max offset voltage, 2.2µV/°C
max offset voltage drift (0.5µV/°C typ), and 250pA max
input offset current.
The MAX478 and MAX479 operate from a single sup-
ply. The input voltage range includes ground, and the
output swings to within a few millivolts of ground, which
eliminates pull-down resistors and saves power.
Both devices are optimized for single 3V and 5V sup-
ply operation, with guaranteed specifications at each
supply voltage. Specifications for ±15V operation are
also provided.
__________Typical Operating Circuit
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
V2
_______________General Description
V1
_______________________Applications
MICROPOWER, HIGH INPUT IMPEDANCE DIFFERENTIAL
R1
Battery- or Solar-Powered Systems:
Micropower Sample-and-Hold
Thermocouple Amplifier
Micropower Filters
Single Lithium Cell Powered Systems
AMPLIFIER WITH VARIABLE GAIN IN 8-PIN DIP/SO
Portable Instrumentation
Remote Sensor Amplifier
Satellite Circuitry
1/2MAX478
________________________________________________________________ Maxim Integrated Products
R3
R2
17µA Max, Dual/Quad, Single-Supply,
R2
V
OUT
= (V1-V2) (1 +
+5V
R1
1/2MAX478
R1
R2
+ 2
V
OUT
R1 )
R3
* Dice are specified at T
_________________Pin Configurations
MAX478ACPA
MAX478CPA
MAX478CSA
MAX478C/D
MAX478EPA
MAX478ESA
MAX479ACPD
MAX479CPD
MAX479CSD
MAX479EPD
MAX479ESD
______________Ordering Information
___________________________Features
17µA Max Supply Current (MAX478A/MAX479A)
70µV Max Offset Voltage (MAX478A)
Single-Supply Operation:
Dual Op Amp in 8-Pin DIP/SO Package (MAX478)
Quad Op Amp in 14-Pin DIP/SO Package (MAX479)
250pA Max Input Offset Current
(MAX478A/MAX479A)
0.5µV/°C Offset-Voltage Drift
Output Sources and Sinks 5mA Load Current
TOP VIEW
Input Voltage Range Includes Ground
Output Swings to Ground While Sinking Current
No Pull-Down Resistors Required
PART
Precision Op Amps
OUTA
OUTA
OUTB
INA+
INA+
INB+
INA-
INA-
INB-
V+
V-
1
2
3
4
1
2
3
4
5
6
7
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP. RANGE
A
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
= +25°C, DC parameters only.
MAX478
A
B
A
DIP/SO
DIP/SO
MAX479
B
D
C
14
13
12
11
10
8
7
6
5
9
8
V+
OUTB
INB-
OUTD
IND-
IND+
INB+
V-
INC+
INC-
OUTC
14 Plastic DIP
14 Plastic DIP
14 SO
14 Plastic DIP
14 SO
PIN-PACKAGE
8 Plastic DIP
8 Plastic DIP
8 SO
Dice*
8 Plastic DIP
8 SO
1

Related parts for MAX478-MAX479

MAX478-MAX479 Summary of contents

Page 1

... Rev. 1; 11/98 17µA Max, Dual/Quad, Single-Supply, _______________General Description The MAX478 and MAX479 are dual and quad micro- power, precision op amps available in 8-pin and 14-pin DIP and small-outline packages, respectively. Both devices feature an extremely low, 17µA max supply current per op amp, 70µV max offset voltage, 2.2µV/°C max offset voltage drift (0.5µ ...

Page 2

... Differential mode (Note 1) 0.8 Common mode Upper limit 3.5 Lower limit 3. 2.2V to 12V 0.03V to 4V, no load O 140 (Note 0.03V to 3.5V 50kΩ MAX478C/E MAX479C/E UNITS MAX MIN TYP MAX 120 35 100 40 150 80 180 90 250 0.5 0.6 µV/Mo. 0.05 0.25 0.05 0. ...

Page 3

... MIN TYP MAX MIN TYP MAX 6.5 9.0 6.5 9.0 0.2 0.6 0.2 0.6 120 160 120 160 4.2 4.4 4.2 4.4 3.5 3.8 3.5 3.8 0.013 0.025 130 130 2.0 2.2 2.0 2.2 MAX478AC MAX478C MAX479AC MAX479C MIN TYP MAX MIN TYP MAX 50 170 65 250 60 200 70 290 120 300 130 400 0.5 2.2 0.6 3.0 0.8 4.5 0.06 0.35 0.06 0. 101 86 100 90 102 88 ...

Page 4

... V = 0.05V to 4V, no load (Note 0.05V to 3.5V 50kΩ Output low, no load Output low 100µA SINK Output high, no load 3.9 Output high, 2kΩ to GND 3.0 MAX478ES MAX479ES UNITS MAX MIN TYP MAX 80 315 150 400 80 345 160 530 0.8 4.5 0.6 3.0 µV/°C ...

Page 5

... R = 50kΩ Output low, no load Output low, 2kΩ to GND Output high, no load Output high, 2kΩ to GND ≤ 5kHz f O With 300µV V degradation OS Precision Op Amps MAX478AC MAX478C/E MAX479AC MAX479C/E MIN TYP MAX MIN TYP MAX 140 35 120 40 170 80 ...

Page 6

... ±10V, no load 600 2500 50kΩ ±13.0 ±14 2kΩ ±11.0 ±12 +1V 15pF 0.02 0. ≤ 5kHz f O MAX478C/E MAX479C/E UNITS MAX MIN TYP MAX 80 350 100 480 µV 0.25 0.05 0. 13.5 13.9 -15.0 -15.3 106 94 106 ...

Page 7

... Precision Op Amps MAX478AC CONDITIONS MAX479AC MIN TYP MAX47_ACP/CP (Note 1) MAX47_CS (Note ±10V 50kΩ 200 +13V, -15V 5V ±15V 5kΩ ±11.0 ±13.5 L MAX478C MAX479C MAX MIN TYP MAX 100 480 130 660 0.6 2.8 0.7 4.0 0.9 5.5 0.06 0.35 0.06 0. 800 150 ...

Page 8

... MAX478EP CONDITIONS MAX479EP MIN TYP (Note ±10V 50kΩ 100 +13V, -14. 5V ±15V 5kΩ ±11.0 ±13.5 L MAX478ES MAX479ES UNITS MAX MIN TYP MAX 130 740 130 740 0.7 4.0 0.9 5.5 µV/°C 0.07 0.70 0.07 0. 500 100 500 ...

Page 9

Max, Dual/Quad, Single-Supply, __________________________________________Typical Operating Characteristics SUPPLY CURRENT vs. TEMPERATURE 15V 5V 1. -50 - TEMPERATURE (°C) GAIN, PHASE ...

Page 10

Max, Dual/Quad, Single-Supply, Precision Op Amps ____________________________Typical Operating Characteristics (continued) NOISE SPECTRUM 1000 +25°C A 300 CURRENT NOISE 100 VOLTAGE NOISE 1/f CORNER 30 0.5Hz 10 0 100 FREQUENCY (Hz) LARGE-SIGNAL ...

Page 11

Max, Dual/Quad, Single-Supply, ________Typical Application Circuit IN- 1/4MAX479 200k IN+ 1M 2R1 R3 GAIN = ( 100 FOR VALUES SHOWN RG R2 1/4MAX479 LOW-POWER INSTRUMENTATION AMPLIFIER ...

Page 12

Max, Dual/Quad, Single-Supply, Precision Op Amps __________________________________________Package Information (continued) Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change ...

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