Maxim MAX480MJA, MAX480ESA, MAX480EPA, MAX480CSA, MAX480CPA Datasheet
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General Description
The MAX480 is a precision micropower operational amplifier with flexible power-supply capability. Its guaranteed
140µV maximum offset voltage (25µV typ) is the lowest of
any micropower op amp. Similarly, input bias current,
input offset current, and drift specifications are within tight
limits.
Both the input and output voltage ranges include the negative supply rail, allowing maximum signal range capability in single-supply applications. The MAX480 operates
with either a single supply ranging from +1.6V to +36V or
dual supplies from ±0.8V to ±18V. The MAX480 consumes less than 20µA, allowing operation in excess of
10,000 hours from a 250mA-hr lithium coin cell. Even with
a minimal quiescent current, the amplifier sinks or sources
5mA from its output.
The MAX480 is available in 8-pin DIP and SO packages in
commercial, extended, and military temperature ranges.
Applications
Precision Micropower Amplifiers
Micropower Signal Processing
Battery-Powered Analog Circuits
Features
♦ Single- or Dual-Supply Operation: +1.6V to +36V,
±0.8V to ±18V
♦ True Single-Supply Operation: Input and Output
Voltage Ranges Include Ground
♦ 2.0µV/°C Max Offset Voltage Drift
♦ 20µA Max Supply Current
♦ 5mA Min Output Drive
♦ 140µV Max Input Offset Voltage
♦ 3nA Max Input Bias Current
♦ 500V/mV Min Open-Loop Gain
♦ Standard 741 Pinout with Nulling to V-
MAX480
High-Precision, Low-Voltage,
Micropower Op Amp
________________________________________________________________
Maxim Integrated Products
1
MAX480
OUT
V
IN
HP5082-2800
IN914
6
7
4
2
3
V+ (5V)
R2
10k
R1
10k
R3
100k
SINGLE OP AMP FULL-WAVE RECTIFIER
Typical Operating Circuit
19-2772; Rev 3a; 1/98
PART
MAX480CPA
MAX480CSA 0°C to +70°C
0°C to +70°C
TEMP. RANGE PIN-PACKAGE
8 Plastic DIP
8 SO
Pin Configuration
Ordering Information
MAX480EPA
MAX480ESA -40°C to +85°C
-40°C to +85°C 8 Plastic DIP
8 SO
MAX480MJA -55°C to +125°C 8 CERDIP
OUT
NULLV-
1
2
87N.C.
V+IN-
IN+
NULL
DIP/SO
TOP VIEW
3
4
6
5
MAX480
MAX480
High-Precision, Low-Voltage,
Micropower Op Amp
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VS= ±1.5V to ±15V, TA= +25°C, unless otherwise noted.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Supply Voltage (V+ to V-)....................................................±18V
Differential Input Voltage........................(V- - 20V) to (V+ + 20V)
Common-Mode Input Voltage ................(V- - 20V) to (V+ + 20V)
Output Short-Circuit Duration........................................Indefinite
Continuous Power Dissipation
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C)..............................471mW
CERDIP (derate 8.0mW/°C above +70°C)....................640mW
Operating Temperature Ranges
MAX480C_A.........................................................0°C to +70°C
MAX480E_A......................................................-40°C to +85°C
MAX480MJA...................................................-55°C to +125°C
Junction Temperature (T
J
).................................-65°C to +150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10sec).............................+300°C
f
O
= 0.1Hz to 10Hz, VS= ±15V
AV= +1V/V, no oscillations (Note 2)
VCM= 0
VS= ±15V
VCM= 0
V+ = 5V, V- = 0, RL= 10kΩ
V+ = 5V, V- = 0, RL= 2kΩ
V+ = 5V, V- = 0
VS= ±15V
VS= ±15V,
VO= ±10V
CONDITIONS
µVp-p3e
np-p
Input Noise Voltage
pF250 650Capacitive Load Stability
µA
915
I
SY
Supply Current
V/ms512SRSlew Rate
µV/V1.0 12PSRRPower-Supply Rejection Ratio
V
100 500
V
O
4.0 4.2
±14 ±14.2
V
0/4
IVRInput Voltage
nA13I
B
Input Bias Current
nA0.2 1I
OS
µV25 140V
OS
Input Offset Voltage
Input Offset Current
V/mV
500 1200
UNITSMIN TYP MAXSYMBOLPARAMETER
VS= ±15V
VS= ±15V
GΩ20R
INCM
Common-Mode Input Resistance
MΩ30R
IN
Differential-Mode Input Resistance
V
OL
V
OH
Output Voltage Swing
V+ = 5V, V- = 0, 0 < VCM< 4V
dB
85 110
CMRRCommon-Mode Rejection Ratio
VS= ±1.5V
µV
RL= 100kΩ
RL= 2kΩ
RL= 10kΩ
75 250
200 600
RL= 100kΩ
V+ = 5V, V- = 0,
1V < VO< 4V
RL= 10kΩ
A
VO
Large-Signal Voltage Gain
50 180
100 400
VS= ±15kV (Note 1) -15/13.5
RL= 10kΩ
RL= 2kΩ ±11 ±12
VS= ±15V, -15V < VCM< 13.5V 90 130
VS= ±15V 14 20
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