HomedatasheetCA3094BT

CA3094BT Datasheet

30mhz, High Output Current Operational Transconductance Amplifier ( Ota )
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Description

Features, Applications

30MHz, High Output Current Operational Transconductance Amplifier (OTA)

The is a differential input power control switch/amplifier with auxiliary circuit features for ease of programmability. For example, an error or unbalance signal can be amplified by the CA3094 to provide an on-off signal or proportional control output signal to 100mA. This signal is sufficient to directly drive high current thyristors, relays, DC loads, or power transistors. The CA3094 has the generic characteristics of the CA3080 operational amplifier directly coupled to an integral Darlington power transistor capable of sinking or driving currents to 100mA. The gain of the differential input stage is proportional to the amplifier bias current (IABC), permitting programmable variation of the integrated circuit sensitivity with either digital and/or analog programming signals. For example, at an IABC a 1mV change at the input will change the output from to 100�A (typical). The CA3094 is intended for operation to 24V and is especially useful for timing circuits, in automotive equipment, and in other applications where operation is a primary design requirement (see Figures 28, 29 and 30 in Typical Applications text). The CA3094A and CA3094B are like the CA3094 but are intended for operation to 36V and 44V, respectively (single or dual supply).

Features

CA3094E, M for Operation E, M for Operation CA3094BT, M for Operation to 44V Designed for Single or Dual Power Supply Programmable: Strobing, Gating, Squelching, AGC Capabilities Can Deliver 3W (Average) or 10W (Peak) to External Load (in Switching Mode) High Power, Single Ended Class A Amplifier will Deliver Power Output 0.6W (1.6W Device Dissipation) Total Harmonic Distortion (THD) 0.6W in Class A Operation 1.4% (Typ)

Applications

Error Signal Detector: Temperature Control with Thermistor Sensor; Speed Control for Shunt Wound DC Motor Over Current, Over Voltage, Over Temperature Protectors Dual Tracking Power Supply with CA3085 Wide Frequency Range Oscillator Analog Timer Level Detector

PART NUMBER (BRAND) CA3094M, BM TEMP. RANGE (oC) to 125 PACKAGE 8 Pin Metal Can 8 Ld PDIP 8 Ld SOIC PKG. NO. E8.3 M8.15

Alarm Systems Voltage Follower Ramp Voltage Generator High Power Comparator Ground Fault Interrupter (GFI) Circuits

EXT. FREQUENCY COMPENSATION OR INHIBIT INPUT DIFFERENTIAL VOLTAGE INPUTS GND (V- IN DUAL SUPPLY OPERATION) SINK OUTPUT (COLLECTOR) V+ DRIVE OUTPUT (EMITTER) 2 IABC CURRENT PROGRAMMABLE INPUT (STROBE OR AGC) DIFFERENTIAL VOLTAGE INPUTS 6

SINK OUTPUT (COLLECTOR) EXT. FREQUENCY COMPENSATION OR INHIBIT INPUT 8 1 TAB 7 V+ DRIVE OUTPUT (EMITTER)

IABC CURRENT PROGRAMMABLE INPUT (STROBE OR AGC)

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 321-724-7143 | Copyright � Intersil Corporation 1999

Supply Voltage (Between V+ and V- Terminals) CA3094B. 44V Differential Input Voltage (Terminals 2 and 3, Note 5V DC Input Voltage. V+ to VInput Current (Terminals 2 and 3). �1mA Amplifier Bias Current (Terminal 5). 2mA Average Output Current. 100mA Peak Output Current. 300mA

Thermal Resistance (Typical, Note 2) JA (oC/W) JC (oC/W) PDIP Package. 130 N/A SOIC Package. 170 N/A Metal Can Package. 175 100 Maximum Junction Temperature (Metal Can Package).175oC Maximum Junction Temperature (Plastic Package).150oC Maximum Storage Temperature Range. to 150oC Maximum Lead Temperature (Soldering 10s). 300oC (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. Exceeding this voltage rating will not damage the device unless the peak input signal current (1mA) is also exceeded. JA is measured with the component mounted on an evaluation PC board in free air.

PARAMETER INPUT PARAMETERS Input Offset Voltage

= 25oC for Equipment Design. Single Supply = 30V, Dual Supply VSUPPLY = �15V, IABC = 100�A Unless Otherwise Specified SYMBOL TEST CONDITIONS to 70oC Change in VIO between IABC = 100�A and IABC to 70oC IOUT = 0mA MIN TYP MAX UNITS

Input Offset Voltage Change Input Offset Current
Device Dissipation Common Mode Rejection Ratio Common Mode Input Voltage Range

Unity Gain Bandwidth Open Loop Bandwidth at -3dB Point Total Harmonic Distortion (Class A Operation) Amplifier Bias Voltage (Terminal 5 to Terminal 4) Input Offset Voltage Temperature Coefficient Power Supply Rejection 1/F Noise Voltage 1/F Noise Current Differential Input Resistance Differential Input Capacitance

VABC VIO/T VIO/V = 10Hz, IABC = 10Hz, IABC = 50�A IABC = 30V

PARAMETER = 25oC for Equipment Design. Single Supply = 30V, Dual Supply VSUPPLY = �15V, IABC = 100�A Unless Otherwise Specified (Continued) SYMBOL TEST CONDITIONS MIN TYP MAX UNITS

OUTPUT PARAMETERS (Differential Input Voltage = 1V) Peak Output Voltage (Terminal 6) Peak Output Voltage (Terminal 6) Peak Output Voltage (Terminal 8) Peak Output Voltage (Terminal 8) With Q13 "ON" With Q13 "OFF" Positive Negative With Q13 "OFF" With Q13 "ON" Positive Negative VOM+ VOMVOM+ VOMVCE(SAT) = 50mA, Terminal 6 Grounded = 30V hFE = 30V, VCE = 1MHz, All Remaining Terminals Tied to Terminal 2k to GND pF �A

Collector-to-Emitter Saturation Voltage (Terminal 8) Output Leakage Current (Terminal 6 to Terminal 4) Composite Small Signal Current Transfer Ratio (Beta) (Q12 and Q13) Output Capacitance Terminal 6 Terminal 8 TRANSFER PARAMETERS Voltage Gain

Forward Transconductance to Terminal 1 Slew Rate (Open Loop) Positive Slope Negative Slope

EXTERNAL FREQUENCY COMPENSATION OR INHIBIT INPUT Q5 Q9 DIFFERENTIAL VOLTAGE 2 INPUT DIFFERENTIAL VOLTAGE INPUT AMPLIFIER BIAS INPUT 5 IABC D6 6 "SOURCE" (DRIVE) OUTPUT "SINK" OUTPUT 7 V+

INPUTS OUTPUT MODE "Source" "Sink" OUTPUT TERM 6 8 INV 2 3 NONINV 3 2

Features

Parameters

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