CA3140AE Intersil, CA3140AE Datasheet

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CA3140AE

Manufacturer Part Number
CA3140AE
Description
IC OP AMP BIMOS 4.5MHZ 8-PDIP
Manufacturer
Intersil
Datasheet

Specifications of CA3140AE

Amplifier Type
General Purpose
Number Of Circuits
1
Slew Rate
9 V/µs
Gain Bandwidth Product
4.5MHz
Current - Input Bias
10pA
Voltage - Input Offset
2000µV
Current - Supply
4mA
Current - Output / Channel
40mA
Voltage - Supply, Single/dual (±)
4 V ~ 36 V, ±2 V ~ 18 V
Operating Temperature
-55°C ~ 125°C
Mounting Type
Through Hole
Package / Case
8-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Output Type
-
-3db Bandwidth
-

Available stocks

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15 150
4.5MHz, BiMOS Operational Amplifier with
MOSFET Input/Bipolar Output
The CA3140A and CA3140 are integrated circuit operational
amplifiers that combine the advantages of high voltage
PMOS transistors with high voltage bipolar transistors on a
single monolithic chip.
The CA3140A and CA3140 BiMOS operational amplifiers
feature gate protected MOSFET (PMOS) transistors in the
input circuit to provide very high input impedance, very low
input current, and high speed performance. The CA3140A
and CA3140 operate at supply voltage from 4V to 36V
(either single or dual supply). These operational amplifiers
are internally phase compensated to achieve stable
operation in unity gain follower operation, and additionally,
have access terminal for a supplementary external capacitor
if additional frequency roll-off is desired. Terminals are also
provided for use in applications requiring input offset voltage
nulling. 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 for single supply applications. The output stage
uses bipolar transistors and includes built-in protection
against damage from load terminal short circuiting to either
supply rail or to ground.
The CA3140A and CA3140 are intended for operation at supply
voltages up to 36V (±18V).
®
1
Data Sheet
1-888-INTERSIL or 321-724-7143
Copyright Harris Corporation 1998, Copyright Intersil Americas Inc. 2002, 2004, 2005. All Rights Reserved
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• MOSFET Input Stage
• Directly Replaces Industry Type 741 in Most Applications
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Ground-Referenced Single Supply Amplifiers in
• Sample and Hold Amplifiers
• Long Duration Timers/Multivibrators
• Photocurrent Instrumentation
• Peak Detectors
• Active Filters
• Comparators
• Interface in 5V TTL Systems and Other Low
• All Standard Operational Amplifier Applications
• Function Generators
• Tone Controls
• Power Supplies
• Portable Instruments
• Intrusion Alarm Systems
Pinout
- Very High Input Impedance (Z
- Very Low Input Current (I
- Wide Common Mode Input Voltage Range (V
- Output Swing Complements Input Common Mode
Automobile and Portable Instrumentation
(µseconds-Minutes-Hours)
Supply Voltage Systems
Swung 0.5V Below Negative Supply Voltage Rail
Range
All other trademarks mentioned are the property of their respective owners.
INV. INPUT
|
NON-INV.
July 11, 2005
OFFSET
Intersil (and design) is a registered trademark of Intersil Americas Inc.
INPUT
NULL
V-
CA3140 (PDIP, SOIC)
1
2
3
4
CA3140, CA3140A
TOP VIEW
-
+
l
) -10pA (Typ) at ±15V
IN
) -1.5TΩ (Typ)
5
8
7
6
STROBE
V+
OUTPUT
OFFSET
NULL
FN957.10
lCR
) - Can be

Related parts for CA3140AE

CA3140AE Summary of contents

Page 1

... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 321-724-7143 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Harris Corporation 1998, Copyright Intersil Americas Inc. 2002, 2004, 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners. FN957.10 ) -1.5TΩ (Typ -10pA (Typ) at ± ...

Page 2

... Ordering Information PART NUMBER TEMP. (BRAND) RANGE (°C) PACKAGE CA3140AE -55 to 125 8 Ld PDIP CA3140AEZ* -55 to 125 8 Ld PDIP (See Note) (Pb-free) CA3140AM -55 to 125 8 Ld SOIC (3140A) CA3140AM96 -55 to 125 8 Ld SOIC Tape and Reel (3140A) CA3140AMZ -55 to 125 8 Ld SOIC ...

Page 3

Absolute Maximum Ratings DC Supply Voltage (Between V+ and V- Terminals 36V Differential Mode Input Voltage . . . . . . . . . . . . . . . ...

Page 4

Electrical Specifications For Equipment Design PARAMETER Large Signal Voltage Gain (Note 3) (See Figures 6, 29) Common Mode Rejection Ratio (See Figure 34) Common Mode Input Voltage Range (See Figure 8) Power-Supply Rejection Ratio, ∆V /∆V (See Figure ...

Page 5

Block Diagram + 3 INPUT - 2 OFFSET Schematic Diagram BIAS CIRCUIT INVERTING 2 INPUT - + NON-INVERTING 3 INPUT R 2 500Ω Q ...

Page 6

Application Information Circuit Description As shown in the block diagram, the input terminals may be operated down to 0.5V below the negative supply rail. Two class A amplifier stages provide the voltage gain, and a unique class AB amplifier stage ...

Page 7

Output Circuit Considerations Excellent interfacing with TTL circuitry is easily achieved with a single 6.2V zener diode connected to Terminal 8 as shown in Figure 1. This connection assures that the maximum output signal swing will not go more positive ...

Page 8

R S 30V NO LOAD 7 120V CA3140 FIGURE 4. METHODS OF UTILIZING THE V LOAD RESISTANCE ( 2kΩ L LOAD CAPACITANCE ( 100pF L = ±15V SUPPLY VOLTAGE: ...

Page 9

CA3140 is used as a unity gain voltage follower. This resistance prevents the possibility of extremely large input signal transients from forcing a signal through the input protection network and directly driving the internal constant current source which could ...

Page 10

T = 125 C A FOR METAL CAN PACKAGES 6 DIFFERENTIAL DC VOLTAGE (ACROSS TERMINALS 2 AND OUTPUT STAGE TOGGLED DIFFERENTIAL DC VOLTAGE (ACROSS TERMINALS 2 AND ...

Page 11

CA3080A 360Ω 7- 2MΩ SYMMETRY -15V -15V +15V 100kΩ FROM BUFFER METER DRIVER (OPTIONAL) 120Ω 39kΩ -15V THIS NETWORK IS USED WHEN THE OPTIONAL BUFFER CIRCUIT IS NOT USED Top ...

Page 12

FREQUENCY 500kΩ CALIBRATION MAXIMUM 620kΩ FREQUENCY 7 51kΩ ADJUSTMENT 3 + 10kΩ CA3140 6 SWEEP IN - 3MΩ 2kΩ 0.1µF FREQUENCY CALIBRATION MINIMUM 510Ω FIGURE 11. METER DRIVER AND BUFFER AMPLIFIER “LOG” SAWTOOTH 1N914 22MΩ 1N914 0.47µF 0.047µF ...

Page 13

This circuit can be adjusted most easily with a distortion analyzer, but a good first approximation can be made by comparing the output signal with that of a sine wave generator. The initial slope is adjusted with the potentiometer R ...

Page 14

A small heat sink VERSAWATT transistor is used as the series pass element in the fold back current system, Figure 17, since dissipation levels will only approach 10W. In this system, the D2201 diode is used for current sampling. Foldback ...

Page 15

Tone Control Circuits High slew rate, wide bandwidth, high output voltage capability and high input impedance are all characteristics required of tone control amplifiers. Two tone control circuits that exploit these characteristics of the CA3140 are shown in Figures 19 ...

Page 16

Wien Bridge Oscillator Another application of the CA3140 that makes excellent use of its high input impedance, high slew rate, and high voltage qualities is the Wien Bridge sine wave oscillator. A basic Wien Bridge oscillator is shown in Figure ...

Page 17

Pulse “droop” during the hold interval is 170pA/200pF which is 0.85µV/µs; (i.e., 170pA/200pF). In this case, 170pA represents the typical leakage current of the CA3080A when strobed off were increased to 2000pF, the “hold-droop” rate will 1 decrease ...

Page 18

R 2 5kΩ +15V 10kΩ CA3140 100kΩ OFFSET ADJUST ------ - ---------------------------- - GAIN ...

Page 19

Typical Performance Curves R = 2kΩ - 125 o 125 C 100 SUPPLY VOLTAGE (V) FIGURE 29. OPEN-LOOP VOLTAGE GAIN vs SUPPLY VOLTAGE AND TEMPERATURE R ...

Page 20

Typical Performance Curves 1000 = ±15V SUPPLY VOLTAGE 100 FREQUENCY (Hz) FIGURE 35. EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY 20 CA3140, CA3140A (Continued) 100 80 ...

Page 21

Metallization Mask Layout Dimensions in parenthesis are in millimeters and are derived from the basic inch dimensions as indicated. Grid graduations are in mils (10 The photographs and dimensions represent a ...

Page 22

Dual-In-Line Plastic Packages (PDIP INDEX N/2 AREA -B- -A- D BASE PLANE -C- SEATING PLANE 0.010 (0.25 NOTES: 1. Controlling Dimensions: INCH. In case of conflict between ...

Page 23

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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