ca3160t Intersil Corporation, ca3160t Datasheet

ca3160t

Manufacturer Part Number

ca3160t

Description

4mhz, Bimos Operational Amplifier With Mosfet Input/cmos Output

Manufacturer

Intersil Corporation

Datasheet

1.CA3160T.pdf (17 pages)

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Download datasheet (797Kb)

4MHz, BiMOS Operational Ampliﬁer with

MOSFET Input/CMOS Output

The CA3160A and CA3160 are integrated circuit operational

amplifiers that combine the advantage 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.

The CA3160A offers superior input characteristics over

those of the CA3160.

Ordering Information

CA3160AE

CA3160E

CA3160T

PART NUMBER

RANGE (

-55 to 125

TEMP.

8 Ld PDIP

8 Pin Metal Can

Data Sheet

PACKAGE

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

E8.3

T8.C

PKG.

NO.

Features

• MOSFET Input Stage Provides:

• Common-Mode Input Voltage Range Includes

• CMOS Output Stage Permits Signal Swing to Either (or

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

• Wien-Bridge Oscillators

• Voltage Controlled Oscillators

• Photo Diode Sensor Ampliﬁers

Pinouts

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.

1-888-INTERSIL or 321-724-7143

- Very High Z

- Very Low I

Negative Supply Rail; Input Terminals Can Be Swung

0.5V Below Negative Supply Rail

Both) Supply Rails

D/A Converter)

. . . . . . . . . . . . . . . . . . . . . . . 2pA (Typ) at 5V Operation

SUPPLEMENTARY

OFFSET NULL

September 1998

COMPENSATION

NON-INV.

INPUT

NON-INV.

OFFSET

INV.

. . . . . . . . . . . . . 5pA (Typ) at 15V Operation

INV.

INPUT

= 1.5T (1.5 x 10

NULL

V-

(METAL CAN)

CA3160, CA3160A

TOP VIEW

CA3160

(PDIP)

TAB

V- AND CASE

File Number 976.3

STROBE

) (Typ)

V+

OFFSET

NULL

STROBE

V+

OUTPUT

OFFSET NULL

Intersil Corporation 1999

OUTPUT

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ca3160t Summary of contents

Page 1

... TEMP. o PART NUMBER RANGE ( C) PACKAGE CA3160AE -55 to 125 8 Ld PDIP CA3160E -55 to 125 8 Ld PDIP CA3160T -55 to 125 8 Pin Metal Can 1 September 1998 Features • MOSFET Input Stage Provides: - Very High Very Low 5pA (Typ) at 15V Operation 2pA (Typ Operation • ...

Page 2

Absolute Maximum Ratings Supply Voltage (Between V+ and V- Terminals +16V Differential Mode Input Voltage . . . . . . . . . . . . . . ...

Page 3

Electrical Speciﬁcations For Design Guidance, V PARAMETER Unity Gain Crossover Frequency Slew Rate Transient Response Rise and Fall Time Overshoot Settling Time Electrical Speciﬁcations For Design Guidance +5V 0V, T PARAMETER SYMBOL Input Offset Voltage Input ...

Page 4

Schematic Diagram BIAS CURRENT 8. 40k INPUT STAGE D 5 NON-INV. INPUT INV. INPUT NOTE: Diodes D Application Information ...

Page 5

Q and its cascode-connected load resistance 11 provided by PMOS transistors Q and Q 3 potentials for these PMOS transistors is described later. Miller Effect compensation (roll off) is accomplished by means of the 30pF capacitor and 2k resistor ...

Page 6

The 2V differential voltage example represents conditions when the amplifier output state is “toggled”, e.g comparator applications. Power Supply Considerations Because the CA3160 is ...

Page 7

BW (3dB) = 200kHz TOTAL NOISE VOLTAGE (INPUT REFERRED = 40 V (TYP) FIGURE 2. TEST CIRCUIT AMPLIFIER (30dB GAIN) USED FOR Typical Performance Curves Top Trace: Output Bottom Trace: Input FIGURE 3B. SMALL SIGNAL RESPONSE FIGURE 3. DUAL SUPPLY ...

Page 8

Typical Applications Voltage Followers Operational amplifiers with very high input resistances, like the CA3160, are particularly suited to service as voltage followers. Figure 3 shows the circuit of a classical voltage follower, together with pertinent waveforms using the CA3160 in ...

Page 9

Error-Ampliﬁer in Regulated Power Supplies The CA3160 is an ideal choice for error-amplifier service in regulated power supplies since it can function as an error- amplifier when the regulated output voltage is required to approach zero. The circuit shown in ...

Page 10

INPUT + 0.2 F TURN 2. DELAY 1.5k 100k 2.2k + 100 F + 25V - - CA3086 62k - Hum and Noise Output <250 ...

Page 11

INPUT 1V 1V 22M 300V 300V 100V 100V 30V 30V 10V 10V FIGURE 8. HIGH INPUT RESISTANCE DC VOLTMETER 20pF 8.2k +7.5V VOLTAGE-CONTROLLED ...

Page 12

NOTE: A square wave signal modulates the external sweeping input to produce 1Hz and 1MHz, showing the 1,000,000/1 frequency range of the Function Generator. FIGURE 9B. TWO-TONE OUTPUT SIGNAL FROM THE FUNCTION GENERATOR FIGURE 9. 1,000,000/1 SINGLE CONTROL FUNCTION GENERATOR: ...

Page 13

Figure 23. To further enhance the stability of this circuit, the CA3160 can be operated with its output (Terminal 6) near ground, thus markedly reducing ...

Page 14

SAMPLED OUTPUT INPUT SIGNAL SAMPLING PULSES Top Trace: Sampled Output Center Trace: Input Signal Bottom Trace: Sampling Pulses FIGURE 12B. SAMPLE AND HOLD WAVEFORM FIGURE 12. SINGLE SUPPLY SAMPLE AND HOLD SYSTEM, INPUT 0V TO 10V Single Supply Sample-and-Hold System ...

Page 15

680k 3 INPUT 20dB LARGE SIGNAL BW (-3dB) = 190kHz 20k FIGURE 14. CMOS TRANSISTOR ARRAY (CA3600E) CONNECTED AS POWER BOOSTER IN THE OUTPUT STAGE OF THE CA3160 Typical ...

Page 16

Typical Performance Curves 17 12.5 1k 500 10 7 2.5 5 7.5 10 12.5 GATE VOLTAGE [TERMINALS 4 AND 8] (V) FIGURE 17. VOLTAGE TRANSFER CHARACTERISTICS OF CMOS OUTPUT STAGE ...

Page 17

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certiﬁcation. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with- out notice. 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 ...

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