CA3160_04 Datasheet, PDF (1/18 Pages) Intersil Corporation – 4MHz, BiMOS Operational Amplifier with MOSFET Input/CMOS Output

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Data Sheet
June 2004
CA3160
FN976.5
4MHz, BiMOS Operational Amplifier with
MOSFET Input/CMOS Output
The CA3160 is an operational amplifier that combines the
advantages of both CMOS and bipolar transistors on a
monolithic chip. The CA3160 series are frequency
compensated versions of the popular CA3130 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 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.
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 CA3160 Series circuits operate at supply voltages
ranging from 5V to 16V, or ±2.5V to ±8V when using split
supplies, and have terminals for adjustment of offset voltage
for applications requiring offset null capability. Terminal
provisions are also made to permit strobing of the output
stage.
Ordering Information
PART NUMBER
CA3160E
TEMP.
RANGE (^oC)
PACKAGE
-55 to 125 8 Ld PDIP
PKG.
NO.
E8.3
Features
• MOSFET Input Stage Provides:
- Very High Z_I . . . . . . . . . . . . . 1.5TΩ (1.5 x 10¹²â„¦) (Typ)
- Very Low I_I . . . . . . . . . . . . . 5pA (Typ) at 15V Operation
. . . . . . . . . . . . . . . . . . . . . . . 2pA (Typ) at 5V Operation
• Common-Mode Input Voltage Range Includes
Negative Supply Rail; Input Terminals Can Be Swung 0.5V
Below Negative Supply Rail
• CMOS Output Stage Permits Signal Swing to Either (or
Both) Supply Rails
Applications
• Ground Referenced Single Supply Amplifiers
• Fast Sample Hold Amplifiers
• Long Duration Timers/Monostables
• High Input Impedance Wideband Amplifiers
• Voltage Followers (e.g., Follower for Single Supply
D/A Converter)
• Wien-Bridge Oscillators
• Voltage Controlled Oscillators
• Photo Diode Sensor Amplifiers
Pinout
CA3160 (PDIP)
TOP VIEW
OFFSET NULL ₁
INV.
INPUT
2
-
NON-INV.
INPUT
3
+
V- 4
8 STROBE
7 V+
6 OUTPUT
5 OFFSET NULL
NOTE: CA3160 Series devices have an on-chip frequency
compensation network. Supplementary phase compensation or
frequency roll-off (if desired) can be connected externally between
Terminals 1 and 8.
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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