Not Recommended for New Designs
This product was manufactured for Maxim by an outside wafer foundry
using a process that is no longer available. It is not recommended for
new designs. The data sheet remains available for existing users.
A Maxim replacement or an industry second-source may be available.
Please see the QuickView data sheet for this part or contact technical
support for assistance.
For further information, contact Maxim’s Applications Tech Support
.
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
General Description
The MAX480 is a precision micropower operational ampli-
fier 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 neg-
ative supply rail, allowing maximum signal range capabili-
ty 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 con-
sumes 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 4; 4/07
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
8
7
N.C.
V+IN-
IN+
NULL
DIP/SO
TOP VIEW
3
4
6
5
MAX480
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.