Electronica

CA3080, CA3080A

®

Data Sheet

April 2001

File Number

475.5

2MHz, Operational Transconductance
Amplifier (OTA)

Features

The CA3080 and CA3080A types are Gatable-Gain Blocks
which utilize the unique operational-transconductanceamplifier (OTA) concept described in Application Note
AN6668, “Applications of the CA3080 and CA3080A HighPerformance Operational TransconductanceAmplifiers”.

• Adjustable Power Consumption . . . . . . . . . . . . 10µW to 30µW

• Slew Rate (Unity Gain, Compensated) . . . . . . . . . 50V/µs

The CA3080 and CA3080A types have differential input and a
single-ended, push-pull, class A output. In addition, these types
have an amplifier bias input which may be used either for gating
or for linear gain control. These types also have ahigh output
impedance and their transconductance (gM) is directly
proportional to the amplifier bias current (IABC).
The CA3080 and CA3080A types are notable for their excellent
slew rate (50V/µs), which makes them especially useful for
multiplexer and fast unity-gain voltage followers. These types
are especially applicable for multiplexer applications because
power is consumed only when thedevices are in the “ON”
channel state.
The CA3080A’s characteristics are specifically controlled for
applications such as sample-hold, gain-control, multiplexing,
etc.

TEMP.
RANGE ( oC)

• Fully Adjustable Gain . . . . . . . . . . . . . . . . .0 to gMRL Limit
• Tight gM Spread:
- CA3080. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2:1
- CA3080A . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . 1.6:1
• Extended gM Linearity . . . . . . . . . . . . . . . . . . . 3 Decades

Applications
• Sample and Hold
• Multiplexer
• Voltage Follower

PACKAGE

PKG.
NO.

CA3080AE

-55 to 125

8 Ld PDIP

CA3080
(PDIP, SOIC)
TOP VIEW

-55 to 125

8 Ld SOIC

-55 to 125

8 Ld SOIC Tape
and Reel

1
2

NON-INV.
INPUT

3

V-4

8

+

NC

7

V+

6

OUTPUT

5

AMPLIFIER
BIAS INPUT

M8.15

CA3080AM96
(3080A)

NC

E8.3

CA3080AM
(3080A)

• Multiplier
• Comparator

Pinouts

INV.
INPUT

Ordering Information
PART NUMBER
(BRAND)

• Flexible Supply Voltage Range . . . . . . . . . . . . ±2V to ±15V

M8.15

CA3080E

0 to 70

8 Ld PDIP

E8.3

CA3080M
(3080)

0 to 708 Ld SOIC

M8.15

CA3080M96
(3080)

0 to 70

8 Ld SOIC Tape
and Reel

M8.15

1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved

CA3080, CA3080A
AbsoluteMaximum Ratings

Thermal Information

Supply Voltage (Between V+ and V- Terminal) . . . . . . . . . . . . . 36V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to VInput Signal Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1mAAmplifier Bias Current (IABC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
Output Short Circuit Duration (Note 1). . . . . . . . . . . . . No Limitation

Thermal Resistance (Typical, Note 2)
θJA ( oC/W) θJC (oC/W)
PDIP Package . . . . . . . . . . . . . . . . . . .
130
N/A
SOIC Package . . . . . . . . . . . . . . . . . . .
170
N/A
Maximum Junction Temperature (Plastic Package). . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)

Operating Conditions
Temperature Range
CA3080 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC
CA3080A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55oC...