CA3260, CA3260A
Data Sheet
September 1998
File Number 1266.4
4MHz, BiMOS Operational Amplifier with
MOSFET Input/CMOS Output
Features
• MOSFET Input Stage provides
12
- Very High Z = 1.5TΩ (1.5 x 10 Ω) (Typ)
I
CA3260A and CA3260 are integrated circuit operational
amplifiers 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.
- Very Low I . . . . . . . . . . . . 5pA (Typ) at 15V Operation
I
. . . . . . . . . . . . . . . . . . . . . . 2pA (Typ) at 5V Operation
• Ideal for Single Supply Applications
Gate protected P-Channel MOSFET (PMOS) transistors are
used in the input circuit to provide very high input
• Common Mode Input Voltage Range Includes
Negative Supply Rail; Input Terminals Can be Swung 0.5V
Below Negative Supply Rail
impedance, very low input current, and exceptional speed
performance. The use of PMOS field 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.
• CMOS Output Stage Permits Signal Swing to Either (Or
Both) Supply Rails
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.
• Ground Referenced Single Supply Amplifiers
• Fast Sample-Hold Amplifiers
• Long Duration Timers/Monostables
• Ideal Interface with Digital CMOS
• High Input Impedance Wideband Amplifiers
The CA3260 Series circuits operate at supply voltages
ranging from 4V to 16V, or ±2V to ±8V when using split
supplies. The CA3260A offers superior input characteristics
over those of the CA3260.
• Voltage Followers (e.g. Follower for Single Supply D/A
Converter)
Pinout
• Voltage Regulators (Permits Control of Output Voltage
Down to 0V)
CA3260, CA3260A (PDIP)
TOP VIEW
• Wien Bridge Oscillators
• Voltage Controlled Oscillators
• Photo Diode Sensor Amplifiers
1
2
3
4
8
7
6
5
OUTPUT (A)
V+
A
+
INV. INPUT (A)
OUTPUT (B)
INV. INPUT (B)
NON INV. INPUT (B)
-
Ordering Information
B
NON INV. INPUT (A)
V-
+
-
TEMP.
PKG.
NO.
o
PART NUMBER RANGE ( C)
PACKAGE
8 Ld PDIP
8 Ld PDIP
CA3260E
-55 to 125
-55 to 125
E8.3
E8.3
CA3260AE
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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