CA3080_04 Datasheet, PDF (1/11 Pages) Intersil Corporation – 2MHz, Operational Transconductance Amplifier (OTA)

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CA3080, CA3080A
August 2004
FN475.6
2MHz, Operational Transconductance
Amplifier (OTA)
The CA3080 and CA3080A types are Gatable-Gain Blocks
which utilize the unique operational-transconductance-
amplifier (OTA) concept described in Application Note
AN6668, “Applications of the CA3080 and CA3080A High-
Performance Operational Transconductance Amplifiers”.
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 a high output
impedance and their transconductance (g_M) is directly
proportional to the amplifier bias current (I_ABC).
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 the devices are in the “ON”
channel state.
The CA3080A’s characteristics are specifically controlled for
applications such as sample-hold, gain-control, multiplexing,
etc.
Part Number Information
PART NUMBER
TEMP.
(BRAND)
RANGE (^oC)
PACKAGE
CA3080AE
CA3080AM
(3080A)
CA3080AM96
(3080A)
CA3080E
CA3080M
(3080)
CA3080M96
(3080)
-55 to 125 8 Ld PDIP
-55 to 125 8 Ld SOIC
-55 to 125
0 to 70
0 to 70
8 Ld SOIC Tape
and Reel
8 Ld PDIP
8 Ld SOIC
0 to 70
8 Ld SOIC Tape
and Reel
PKG.
NO.
E8.3
M8.15
M8.15
E8.3
M8.15
M8.15
Features
• Slew Rate (Unity Gain, Compensated) . . . . . . . . . 50V/µs
• Adjustable Power Consumption. . . . . . . . . . . . .10µW to 30µW
• Flexible Supply Voltage Range. . . . . . . . . . . . . ±2V to ±15V
• Fully Adjustable Gain . . . . . . . . . . . . . . . . .0 to g_MR_L Limit
• Tight g_M Spread:
- CA3080. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2:1
- CA3080A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.6:1
• Extended g_M Linearity . . . . . . . . . . . . . . . . . . . 3 Decades
Applications
• Sample and Hold
• Multiplexer
• Voltage Follower
• Multiplier
• Comparator
Pinouts
CA3080
(PDIP, SOIC)
TOP VIEW
NC ¹
INV.
INPUT
2
-
NON-INV. ₃
+
INPUT
V- ⁴
8 NC
7 _V+
6 _OUTPUT
5
AMPLIFIER
BIAS INPUT
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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