ca5420a Intersil Corporation, ca5420a Datasheet

ca5420a

Manufacturer Part Number

ca5420a

Description

0.5mhz, Low Supply Voltage, Low Input Current Bimos Operational Amplifiers

Manufacturer

Intersil Corporation

Datasheet

1.CA5420A.pdf (7 pages)

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ca5420aE

Manufacturer:

HARRIS

Quantity:

5 510

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ca5420aE

Manufacturer:

ROHM

Quantity:

5 510

Company:

Meier Automation Equipment Co., Limited

Part Number:

ca5420aM

Manufacturer:

INTERSIL

Quantity:

20 000

Company:

Meier Automation Equipment Co., Limited

Part Number:

ca5420aM96

Manufacturer:

INTERSIL

Quantity:

20 000

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ca5420aMZ

Manufacturer:

Intersil

Quantity:

Company:

Meier Automation Equipment Co., Limited

Part Number:

ca5420aMZ

Manufacturer:

INTERSIL

Quantity:

20 000

Company:

H&T Electronics

Part Number:

ca5420aMZ

Quantity:

157

Current page: 1 of 7
Download datasheet (214Kb)

0.5MHz, Low Supply Voltage, Low Input

Current BiMOS Operational Amplifiers

The CA5420A is an integrated circuit operational amplifier that

combines PMOS transistors and bipolar transistors on a single

monolithic chip. It is designed and guaranteed to operate in

microprocessor logic systems that use V+ = 5V, V- = GND,

since it can operate down to ±1V supplies. It will also be

suitable for 3.3V logic systems.

The CA5420A BiMOS operational amplifier features gate-

protected PMOS transistors in the input circuit to provide very

high input impedance, very low input currents (less than 1pA).

The internal bootstrapping network features a unique

guardbanding technique for reducing the doubling of leakage

current for every 10°C increase in temperature. The CA5420A

operates at total supply voltages from 2V to 20V either single or

dual supply. This operational amplifier is internally phase

compensated to achieve stable operation in the unity gain

follower configuration. Additionally, it has access terminals 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 in the

input stage results in common-mode input voltage capability

down to 0.45V below the negative supply terminal, an important

attribute for single supply application. The output stage uses a

feedback OTA type amplifier that can swing essentially from

rail-to-rail. The output driving current of 1.0mA (Min) is provided

by using nonlinear current mirrors.

This device has guaranteed specifications for 5V operation

over the full military temperature range of -55°C to 125°C.

The CA5420A has the same 8 lead pinout used for the

industry standard 741.

Functional Diagram

INPUT PROTECTION

BOOTSTRAPPED

BUFFER AMPS;

NETWORK

MOS

BIPOLAR

HIGH GAIN

(50K)

Data Sheet

OTA BUFFER

BIPOLAR

MOS

(X2)

1-888-INTERSIL or 1-888-468-3774

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• CA5420A at 5V Supply Voltage with Full Military

• CA5420A Guaranteed to Operate from ±1V to ±10V

• 2V Supply at 300µA Supply Current

• 1pA (Typ) Input Current (Essentially Constant to 85°C)

• Rail-to-Rail Output Swing (Drive ±2mA Into 1kΩ Load)

• Pin Compatible with 741 Op Amp

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• pH Probe Amplifiers

• Picoammeters

• Electrometer (High Z) Instruments

• Portable Equipment

• Inaccessible Field Equipment

• Battery Dependent Equipment (Medical and Military)

• 5V Logic Systems

• Microprocessor Interface

Ordering Information

Pinout

NOTE: Pin is connected to Case.

CA5420AM

CA5420AMZ*

(Note)

*Add “96” suffix for Tape and Reel.

NOTE: Intersil Pb-free plus anneal products employ special Pb-free

material sets; molding compounds/die attach materials and 100% matte

tin plate termination finish, which are RoHS compliant and compatible

with both SnPb and Pb-free soldering operations. Intersil Pb-free

products are MSL classified at Pb-free peak reflow temperatures that

meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.

PART NUMBER

December 21, 2005

Temperature Range Guaranteed Specifications

Supplies

All other trademarks mentioned are the property of their respective owners.

NON-INV.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

OFFSET

INPUT

NULL

5420A

5420AMZ

INV.

MARKING

V-

PART

CA5420A (SOIC)

TOP VIEW

RANGE (°C) PACKAGE

-55 to 125

TEMP.

8 Ld SOIC

(Pb-free)

STROBE

V+

OUTPUT

OFFSET

NULL

CA5420A

FN1925.5

M8.15

DWG. #

PKG.

Related parts for ca5420a

ca5420a Summary of contents

Page 1

... The output driving current of 1.0mA (Min) is provided by using nonlinear current mirrors. This device has guaranteed specifications for 5V operation over the full military temperature range of -55°C to 125°C. The CA5420A has the same 8 lead pinout used for the industry standard 741. Functional Diagram X1 ...

Page 2

... A OL ∞ 10kΩ 2kΩ L θ (°C/W) JA 157 = 25°C A CA5420A 150 4.9 300 R = 100Ω 2.6 2.4 0.5 0.5 0 Input 8 P-P 2V Input 4.5 P-P CA5420A MIN TYP MAX - 0.02 0 December 21, 2005 θ (°C/W) JC N/A UNITS TΩ pF Ω nV/√Hz nV/√ ...

Page 3

... 10kΩ 2kΩ SUPPLY 2.5V O CA5420A MIN TYP MAX 1.2 2.7 - 1.2 2.1 - 4.9 4. 0.13 0.15 4.7 4 0.12 0.15 3.5 4 0.1 0.15 - 400 500 - 430 550 CA5420A MIN TYP MAX UNITS - 2.1 - 4.8 4 0.16 0.2 4.7 4 0.15 0 0.14 0.2 - 430 550 ...

Page 4

... CA5420A MIN TYP MAX - 0.01 4 (Note 3) - 0.02 5 (Note 3) 20 100 - 86 100 - - 560 1000 0 320 0.9 0.95 - -0.85 -0. 350 650 - 0.7 1 CA5420A MIN TYP MAX - 0.03 4 (Note 3) - 0.05 5 (Note 3) 20 100 - 86 100 - - 100 320 9.3 - -10 -10 320 9.7 9.9 - -9.7 -9. 450 1000 - December 21, 2005 ...

Page 5

... CA5420A High Input Resistance Voltmeter Advantage is taken of the high input impedance of the CA5420A in a high input resistance DC voltmeter. Only two 1.5V “AA” type penlite batteries power this exceedingly high- input resistance (>1,000,000MΩ) DC voltmeter. Full-scale deflection is ±500mV, ±150mV, and ±15mV. Higher voltage ranges are easily added with external input voltage attenuator networks ...

Page 6

... ± ± 100 FREQUENCY (Hz) FIGURE 9. INPUT NOISE VOLTAGE vs FREQUENCY 6 CA5420A (Continued) 2400 2000 1600 1200 800 400 1 10 FIGURE 6. SUPPLY CURRENT vs OUTPUT VOLTAGE 800 700 600 500 400 300 200 100 100 1000 T = 25° ...

Page 7

... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 7 CA5420A FN1925.5 December 21, 2005 ...

Related keywords

ca5420a datasheet
ca5420a data sheet
ca5420a pdf datasheet
ca5420a component
ca5420a part
ca5420a distributor
ca5420a RoHS
ca5420a datasheet download