U423, U424, U4240B Selling Leads, Datasheet
MFG:SILICONI Package Cooled:CAN6 D/C:09+
U423, U424, U4240B
- Table of contents:
Info of U423
Info of U424
Info of U4240B
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About U423
PDF/DataSheet Download
Datasheet: U423
File Size: 29328 KB
Manufacturer: CALOGIC [Calogic, LLC]
Download : Click here to Download
About U424
PDF/DataSheet Download
Datasheet: U424
File Size: 29328 KB
Manufacturer: CALOGIC [Calogic, LLC]
Download : Click here to Download
About U4240B
PDF/DataSheet Download
Datasheet: U4240B
File Size: 115488 KB
Manufacturer: TEMIC Semiconductors
Download : Click here to Download
U424 General Description
The Calogic U421 Series are Dual N-Channel JFETs on a monolithic structure designed specifically for very high input impedance for differential amplification and impedance matching. This series features ultra low input bias current (250 fempto amps, U421) while offering high gain at low operating currents and tight matching characteristics. These devices are available in chip form for hybrid designs as well as a hermetic TO-78 package.
U424 Maximum Ratings
Gate-to-Gate Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . ±40V
Gate-Drain or Gate-Source Voltage . . . . . . . . . . . . . . . . . . -40V
Gate Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Device Dissipation (Each Side), TA = 25
(Derate 3.2 mW/ oC to 150oC) . . . . . . . . . . . . . . 400mW
Total Device Dissipation, TA = 25
(Derate 6.0 mW/ to 150) . . . . . . . . . . . . . 750 mW
Storage Temperature Range . . . . . . . . . . . . . -65 to +150
U424 Features
· Ultra Low Input Bias Current . . . . . . . 250 Fempto Amps
· Low Operating Current
· Tight Matching Characteristics
· Low Operating Current
· Tight Matching Characteristics
U424 Typical Application
· Ultra Low Leakage FET Input Op Amps
· Electrometer
· Infrared Detectors
· pH Meters
· Electrometer
· Infrared Detectors
· pH Meters
U4240B General Description
The U4240B is a bipolar integrated AM receiver circuit. It performs all the active functions and part of the filtering required of the AM radio receiver. The device is designed for car radio and home receiver applications.
U4240B Maximum Ratings
| Parameters | Symbol | Value | Unit |
| Supply voltage Pin 15 | VS | 12 | V |
| Input voltage Pin 2 Pins 16 and 17 Pins 16 and 17 |
V2 IV1617I V16, V17 |
12 12 VS |
V |
| Input current Pins 16 and 17 | I16, I17 | 200 | mA |
| Ambient temperature range | Tamb | 30 to +85 | °C |
| Storage temperature range | Tstg | 55 to +150 | °C |
| Junction temperature | Tj | 125 | °C |
| Electrostatic handling (MIL Standard 883 C) except Pin 10 |
±VESD | 2000 | V |
U4240B Features
ESD protected
IF output for stereo demodulator and stop signal generation
AF preamplifier with simple filtering
Controlled RF preamplifier
Double balanced mixer
Separate oscillator with amplitude control
IF amplifier with gain control
Balanced full-wave detector
Audio preamplifier
Internal AGC voltage
Amplifier for field-strength indication
Electronic standby ON/ OFF switch
IF output for stereo demodulator and stop signal generation
AF preamplifier with simple filtering
Controlled RF preamplifier
Double balanced mixer
Separate oscillator with amplitude control
IF amplifier with gain control
Balanced full-wave detector
Audio preamplifier
Internal AGC voltage
Amplifier for field-strength indication
Electronic standby ON/ OFF switch
U4240B Connection Diagram
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