CA3080E integrated circuits ics Integrated Circuit Chip 2MHz, Operational Transconductance Amplifier (OTA)
chip in electronics
,small scale integrated circuits
CA3080, CA3080A
2MHz, Operational Transconductance Amplifier (OTA)
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 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 (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 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.
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 gMRL Limit
• Tight gM Spread:
- CA3080. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2:1
- CA3080A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1.6:1
• Extended gM Linearity . . . . . . . . . . . . . . . . . . . 3 Decades
Applications
• Sample and Hold
• Multiplier
• Multiplexer
• Comparator
• Voltage Follower
Pinouts
Absolute Maximum Ratings
Supply Voltage (Between V+ and V- Terminal) . . . . . . . . . . . . . 36V
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V+ to V-
Input Signal Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1mA
Amplifier Bias Current (IABC). . . . . . . . . . . . . . . . . . . . . . . . . . . 2mA
Output Short Circuit Duration (Note 1). . . . . . . . . . . . . No Limitation
Operating Conditions
Temperature Range
CA3080 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0℃ to 70℃
CA3080A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55℃ to 125℃
Thermal Information
Thermal Resistance (Typical, Note 2) θJA (℃/W) θJC (℃/W)
PDIP Package . . . . . . . . . . . . . . . . . . . 130 N/A
SOIC Package . . . . . . . . . . . . . . . . . . . 170 N/A
Metal Can Package . . . . . . . . . . . . . . . 200 120
Maximum Junction Temperature (Metal Can) . . . . . . . . . . . 175℃
Maximum Junction Temperature (Plastic Package) . . . . . . . 150℃
Maximum Storage Temperature Range. . . . . . . . . . -65oC to 150℃
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300℃
(SOIC - Lead Tips Only)
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.
Schematic Diagram
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