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www.fairchildsemi.com
Features
Low Noise – 0.35
m
V
p-p
(0.1 Hz to 10 Hz)
Ultra-low V
OS
– 75
m
V
Ultra-low V
OS
drift – 1.3
m
V/
°
C
Long term V
OS
stability – 0.2
m
V/Mo
Low input bias and offset currents –
±
5 nA
Description
Designed for low level signal conditioning and instrumenta-
tion applications, the 4207 is a precision dual amplifier
combining excellent DC input specifications with low input
noise characteristics. Ultra low input offset voltage, low
drift, high CMRR, and low input bias currents serve to
reduce input related errors to less than 0.01% in a typical
high gain instrumentation amplifier system (A
V
= 1000). The
4207 contains two separate amplifiers with a high degree of
isolation between them; each is complete requiring no exter-
nal compensation capacitors or offset nulling potentiometers.
High gain – 400 V/mV
Fits 4558 socket
Industry standard pinout
8-lead mini-DIP
Block Diagram
A
B
65-3468-01
Output A
–Input A
+Input A
–VS
+VS
Output B
–Input B
+Input B
Pin Assignments
Output A
–Input A
+Input A
–V
S
+V
S
Output B
–Input B
+Input B
8
65-4207-02
7
6
5
1
2
3
4
RC4207
Prec ision Monolithic Dual Operational Amplifier
Rev. 1.0.1
The inherent V
OS
is typically less than 150
m
V, resulting in
superior temperature drift, and this low initial offset is fur-
ther reduced by "Zener-zap" nulling when the wafers are
tested.
Advanced thin film and nitride dielectric processing allows
the 4207 to achieve its high performance and small size (the
4207 is offered in 8-lead DIPs). The 4207 fits the industry
standard 8-lead op amp pin-out.