Intersil Corporation CA3078A, CA3078 Datasheet

CA3078, CA3078A

Data Sheet December 1998 File Number 535.5

2MHz, Micropower Operational Amplifier

The CA3078 and CA3078A are high gain monolithic
operational amplifiers which can deliver milliamperes of
current yetonlyconsumemicrowattsofstandbypower.Their
operating points are externally adjustable and frequency
compensation may be accomplished with one external
capacitor. The CA3078 and CA3078A provide the designer
with the opportunity to tailor the frequency response and
improve the slew rate without sacrificing power. Operation
with a single 1.5V battery is a practical reality with these
devices.

The CA3078A is a premium device having a supply voltage
range of V± = 0.75V to V± = 15V.The CA3078 has the same
lower supply voltage limit but the upper limit is V+ = +6V and
V- = -6V.

Ordering Information

PART NUMBER

(BRAND)

CA3078AE -55 to 125 8 Ld PDIP E8.3
CA3078AM

(3078A)
CA3078AM96

(3078A)
CA3078AT -55 to 125 8 Pin Metal Can T8.C
CA3078E 0 to 70 8 Ld PDIP E8.3
CA3078M

(3078)
CA3078T 0 to 70 8 Pin Metal Can T8.C

TEMP.

PKG.

RANGE (oC) PACKAGE

-55 to 125 8 Ld SOIC M8.15

-55 to 125 8 Ld SOIC Tape and Reel M8.15

0 to 70 8 Ld SOIC M8.15

NO.

Features

• Low Standby Power . . . . . . . . . . . . . . . As Low As 700nW

• Wide Supply Voltage Range. . . . . . . . . . . ±0.75V to ±15V

• High Peak Output Current . . . . . . . . . . . . . . . 6.5mA (Min)

• Adjustable Quiescent Current

• Output Short Circuit Protection

Applications

• Portable Electronics • Intrusion Alarms

• Telemetry • Instrumentation

• Medical Electronics

Pinouts

CA3078 (PDIP, SOIC)

TOP VIEW

COMP

1

INPUT

2
3
4

V-

INV. INPUT

NON-INV.

CA3078 (METAL CAN)

TOP VIEW

COMP

8

1

INV.

2

INPUT

NON-INV.

INPUT

+

3

4

V-

NOTE: Case Voltage = Floating

-

+

TAB

7

5

V+

6

OUTPUT

BIAS

8

COMP

7

V+
OUTPUT

6
5

BIAS

V+

R

SET

Schematic Diagram

NON­INVERTING

3

INVERTING

2

BIAS

5

7

D

2

Q

D

1

1

D

3

Q

6

Q

4

D

9

Q

3

1

Q

2

D

4

Q

5

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

D

5

Q

7

Q

8

D

6

D

7

1

COMPENSATION

1-888-INTERSIL or 321-724-7143

Q

Q

12

10

Q

11

D

8

Q

9

8

50Ω

Q

13

Q

14

50Ω

V+

Q

18

Q

OUTPUT

16

6

Q

15

Q

17

V-

4

| Copyright © Intersil Corporation 1999

CA3078, CA3078A

Absolute Maximum Ratings Thermal Information

Supply Voltage (Between V+ and V- Terminal)

CA3078 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14V

CA3078A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36V

Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to V-

Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1mA

Output Short Circuit Duration (Note 1). . . . . . . . . . . . . No Limitation

Operating Conditions

Temperature Range

CA3078 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC

CA3078A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC to 125oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.

NOTES:

1. Short circuit may be applied to ground or to either supply.

2. θJA is measured with the component mounted on an evaluation PC board in free air.

Electrical Specifications For Equipment Design

CA3078 LIMITS CA3078A LIMITS

TEST CONDITIONS

PARAMETER

V

IO

I

IO

I

IB

A

OL

I

Q

P

D

V

OM

V

ICR

V+

and V-

±6V ≤10 - - 1.3 4.5 - 5 - 0.70 3.5 - 4.5 mV

R

(kΩ)

R

S

(kΩ)

L

MIN TYP MAX MIN MAX MIN TYP MAX MIN MAX

- - - 6 32 - 40 - 0.50 2.5 - 5.0 nA

- - - 60 170 - 200 - 7 12 - 50 nA

- ≥10 88 92 - 86 - 92 100 - 90 - dB

- - - 100 130 - 150 - 20 25 - 45 µA

- - - 1200 1560 - 1800 - 240 300 - 540 µW

- ≥10 ±5.1 ±5.3 - ±5-±5.1 ±5.3 - ±5- V

≤10 - - -5.5 to

CMRR ≤10 - 80 110 - - - 80 115 - - - dB

IOM+ or IOM- - - - 12 - 6.5 30 - 12 - 6.5 30 mA

∆VIO/∆V+ ≤10 - 76 93 - - - 76 105 - - - µV/V

∆VIO/∆V- ≤10 - 76 93 - - - 76 105 - - - µV/V

V

IO

A

OL

I

Q

P

D

V

OM

±15V ≤10 - - - - - - - 1.4 3.5 - 4.5 mV

- ≥10 - - - - - 92 100 - 88 - dB

--------2030-50µA

- - - - - - - - 600 750 - 1350 µW

- ≥10-----±13.7 ±14.1 - ±13.5 - V

CMRR ≤10 - - - - - - 80 106 - - - dB

I

IB

I

IO

--------714-55nA

- - - - - - - - 0.50 2.7 - 5.5 nA

R

TA = 25oC

+5.8

= 1MΩ R

SET

- -5 to

Thermal Resistance (Typical, Note 2) θJA (oC/W) θJC (oC/W)

PDIP Package . . . . . . . . . . . . . . . . . . . 130 N/A

SOIC Package . . . . . . . . . . . . . . . . . . . 165 N/A

Metal Can Package . . . . . . . . . . . . . . . 175 100

Maximum Junction Temperature (Metal Can Package). . . . . . . .175oC

Maximum Junction Temperature (Plastic Package) . . . . . . . .150oC

Maximum Storage Temperature Range. . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

(SOIC - Lead Tips Only)

= 5.1MΩ

SET

TA = 0oC to

70oCT

= 25oC

A

TA = -55oC to

125oC

UNITS

+5

- - -5.5 to
+5.8

- -5 to

R

= 13MΩ

SET

-V

+5

2

CA3078, CA3078A

Electrical Specifications T

= 25oC, Typical Values Intended Only for Design Guidance

A

CA3078 CA3078A

PARAMETER

V

IO

I

IO

I

IB

A

OL

I

Q

P

D

V

OP-P

V

ICR

V+ = +1.3V,

V- = -1.3V

R

= 2MΩ

SET

1.3 1.5 0.7 0.9 mV

1.7 0.5 0.3 0.054 nA
9 1.3 3.7 0.45 nA

80 60 84 65 dB
10 1 10 1 µA
26 1.5 26 1.5 µW

1.4 0.3 1.4 0.3 V

-0.8 to +1.1 -0.2 to +0.5 -0.8 to +1.1 -0.2 to +0.5 V

V+ = +0.75V,

V- = -0.75V

R

= 10MΩ

SET

V+ = +1.3V,

V- = -1.3V

R

= 2MΩ

SET

V+ = +0.75V,

V- = -0.75V

R

= 10MΩ

SET

CMRR 100 90 100 90 dB

IOM± 12 0.5 12 0.5 mA

∆VIO/∆V± 20 50 20 50 µV/V

Electrical Specifications T

= 25oC and V

A

SUPPLY

= ±6V, Typical Values Intended Only for Design Guidance

CA3078 CA3078A

PARAMETER TEST CONDITIONS

∆VIO/∆T

∆IIO/∆T

RS≤10kΩ 656µV/oC

A

RS≤10kΩ 70 6.3 70 pA/oC

A

= 1MΩ R

SET

= 5.1MΩ R

SET

SET

= 1MΩ

GBWP AV = 100, C1 = 10pF 2 0.3 2 MHz

SR See Figures 23, 24 0.04 0.027 0.04 V/µs

1.5 0.5 1.5 V/µs

t

R

R

I

R

O

10% to 90% Rise Time 2.5 3 2.5 µs

- 0.87 7.4 1.7 MΩ

- 0.8 1 0.8 kΩ

eN(10Hz) RS = 0 25 40 - nV/√Hz

iN(10Hz) RS = 1MΩ 1 0.25 - pA/√Hz

UNITS

UNITSR

3

Test Circuits

100kΩ

V+

CA3078, CA3078A

V+

100kΩ

0V

V

IN

R2 - C

R

1
2

100kΩ

R

C

51kΩ

OPTIONAL
COMP.

V+

7

2

-

3

CA3078
CA3078A

+

4

V-

R

1

2

2

R

SET

5

6

8

1

10kΩ

C

1

C

L

FIGURE1. TRANSIENT RESPONSE ANDSLEWRATE,UNITY

GAIN (INVERTING) TEST CIRCUIT

NON-INVERTING

INPUT

V+

1M

V-

R

I

R

B

3

2

R

R

I

V+

7

+

CA3078
CA3078A

-

F

4

V-

6

OUTPUT

Value of RB required to have a
null adjustment range of ±7.5mV

R

B

assuming RB > >

RI RF V+

≈

(RI + RF) 7.5 x 10

RI R

RI + R

-3

F

F

V

0V

OUT

0V

V

IN

R2 - C

R

1
2

R

2

C

2

100kΩ

OPTIONAL
COMP.

2

3

V+

7

-

CA3078
CA3078A

+

4

V-

R

1

R

SET

5

6

8

C

1

C

10kΩ

L

1

FIGURE 2. SLEW RATE,UNITY GAIN (NON-INVERTING)

TEST CIRCUIT

INVERTING

R

INPUT

V+

1M

V-

F

R

I

R

B

2

3

7

-

CA3078
CA3078A

+

4

V+

V-

OUTPUT

6

Value of RB required to have a
null adjustment range of ±7.5mV

RI V+

R

≈

B

assuming RB > > R

7.5 x 10

-3
I

V

0V

OUT

FIGURE 3. OFFSET VOLTAGE NULL CIRCUITS

5.1MΩ

R

5

8

SET

30MΩ

=

6

1.5V

“AA” CELL

+

5µF

R

L

10MΩ

+

-

510kΩ

V

P-P

1µF

1µF

10MΩ

10MΩ

V

P-P

510kΩ

1µF

10MΩ

2

3

7

-

CA3078
CA3078A

+

1

4

7pF

2

3

5.1MΩ

7

-

CA3078
CA3078A

+

1

4

7pF

5

8

R

SET

30MΩ

=

6

FIGURE 4. INVERTING 20dB AMPLIFIER CIRCUIT FIGURE 5. NON-INVERTING 20dB AMPLIFIER CIRCUIT

4

1.5V

“AA” CELL

+

5µF

R

L

+

-