CA3260, CA3260A
Data Sheet
September 1998
File Number 1266.4
4MHz, BiMOS Operational Ampli鏗乪r with
MOSFET Input/CMOS Output
CA3260A and CA3260 are integrated circuit operational
ampli鏗乪rs that combine the advantage of both CMOS and
bipolar transistors on a monolithic chip. The CA3260 series
circuits are dual versions of the popular CA3160 series.
Gate protected P-Channel MOSFET (PMOS) transistors are
used in the input circuit to provide very high input
impedance, very low input current, and exceptional speed
performance. The use of PMOS 鏗乪ld effect transistors in the
input stage results in common mode input voltage capability
down to 0.5V below the negative supply terminal, an
important attribute in single supply applications.
A complementary symmetry MOS (CMOS) transistor pair,
capable of swinging the output voltage to within 10mV of
either supply voltage terminal (at very high values of load
impedance), is employed as the output circuit.
The CA3260 Series circuits operate at supply voltages
ranging from 4V to 16V, or
鹵2V
to
鹵8V
when using split
supplies. The CA3260A offers superior input characteristics
over those of the CA3260.
Features
鈥?MOSFET Input Stage provides
- Very High Z
I
= 1.5T鈩?(1.5 x 10
12
鈩?
(Typ)
- Very Low I
I
. . . . . . . . . . . . 5pA (Typ) at 15V Operation
. . . . . . . . . . . . . . . . . . . . . . 2pA (Typ) at 5V Operation
鈥?Ideal for Single Supply Applications
鈥?Common Mode Input Voltage Range Includes
Negative Supply Rail; Input Terminals Can be Swung 0.5V
Below Negative Supply Rail
鈥?CMOS Output Stage Permits Signal Swing to Either (Or
Both) Supply Rails
Applications
鈥?Ground Referenced Single Supply Ampli鏗乪rs
鈥?Fast Sample-Hold Ampli鏗乪rs
鈥?Long Duration Timers/Monostables
鈥?Ideal Interface with Digital CMOS
鈥?High Input Impedance Wideband Ampli鏗乪rs
鈥?Voltage Followers (e.g. Follower for Single Supply D/A
Converter)
鈥?Voltage Regulators (Permits Control of Output Voltage
Down to 0V)
鈥?Wien Bridge Oscillators
鈥?Voltage Controlled Oscillators
Pinout
CA3260, CA3260A (PDIP)
TOP VIEW
OUTPUT (A)
INV. INPUT (A)
NON INV. INPUT (A)
V-
1
A
2
3
4
8
7
B
+
6
5
V+
鈥?Photo Diode Sensor Ampli鏗乪rs
OUTPUT (B)
-
+
Ordering Information
-
INV. INPUT (B)
NON INV. INPUT (B)
PART NUMBER
CA3260E
CA3260AE
TEMP.
RANGE (
o
C)
-55 to 125
-55 to 125
PACKAGE
8 Ld PDIP
8 Ld PDIP
PKG.
NO.
E8.3
E8.3
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Copyright
漏
Intersil Corporation 1999
INTERSIL
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