CA3140MZ Intersil, CA3140MZ Datasheet
CA3140MZ
Specifications of CA3140MZ
Available stocks
Related parts for CA3140MZ
CA3140MZ Summary of contents
Page 1
... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 321-724-7143 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Harris Corporation 1998, Copyright Intersil Americas Inc. 2002, 2004, 2005. All Rights Reserved All other trademarks mentioned are the property of their respective owners. FN957.10 ) -1.5TΩ (Typ -10pA (Typ) at ± ...
Page 2
... CA3140MZ -55 to 125 8 Ld SOIC (3140) (See Note) (Pb-free) CA3140MZ96 -55 to 125 8 Ld SOIC Tape and Reel (3140) (See Note) (Pb-free) *Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications ...
Page 3
Absolute Maximum Ratings DC Supply Voltage (Between V+ and V- Terminals 36V Differential Mode Input Voltage . . . . . . . . . . . . . . . ...
Page 4
Electrical Specifications For Equipment Design PARAMETER Large Signal Voltage Gain (Note 3) (See Figures 6, 29) Common Mode Rejection Ratio (See Figure 34) Common Mode Input Voltage Range (See Figure 8) Power-Supply Rejection Ratio, ∆V /∆V (See Figure ...
Page 5
Block Diagram + 3 INPUT - 2 OFFSET Schematic Diagram BIAS CIRCUIT INVERTING 2 INPUT - + NON-INVERTING 3 INPUT R 2 500Ω Q ...
Page 6
Application Information Circuit Description As shown in the block diagram, the input terminals may be operated down to 0.5V below the negative supply rail. Two class A amplifier stages provide the voltage gain, and a unique class AB amplifier stage ...
Page 7
Output Circuit Considerations Excellent interfacing with TTL circuitry is easily achieved with a single 6.2V zener diode connected to Terminal 8 as shown in Figure 1. This connection assures that the maximum output signal swing will not go more positive ...
Page 8
R S 30V NO LOAD 7 120V CA3140 FIGURE 4. METHODS OF UTILIZING THE V LOAD RESISTANCE ( 2kΩ L LOAD CAPACITANCE ( 100pF L = ±15V SUPPLY VOLTAGE: ...
Page 9
CA3140 is used as a unity gain voltage follower. This resistance prevents the possibility of extremely large input signal transients from forcing a signal through the input protection network and directly driving the internal constant current source which could ...
Page 10
T = 125 C A FOR METAL CAN PACKAGES 6 DIFFERENTIAL DC VOLTAGE (ACROSS TERMINALS 2 AND OUTPUT STAGE TOGGLED DIFFERENTIAL DC VOLTAGE (ACROSS TERMINALS 2 AND ...
Page 11
CA3080A 360Ω 7- 2MΩ SYMMETRY -15V -15V +15V 100kΩ FROM BUFFER METER DRIVER (OPTIONAL) 120Ω 39kΩ -15V THIS NETWORK IS USED WHEN THE OPTIONAL BUFFER CIRCUIT IS NOT USED Top ...
Page 12
FREQUENCY 500kΩ CALIBRATION MAXIMUM 620kΩ FREQUENCY 7 51kΩ ADJUSTMENT 3 + 10kΩ CA3140 6 SWEEP IN - 3MΩ 2kΩ 0.1µF FREQUENCY CALIBRATION MINIMUM 510Ω FIGURE 11. METER DRIVER AND BUFFER AMPLIFIER “LOG” SAWTOOTH 1N914 22MΩ 1N914 0.47µF 0.047µF ...
Page 13
This circuit can be adjusted most easily with a distortion analyzer, but a good first approximation can be made by comparing the output signal with that of a sine wave generator. The initial slope is adjusted with the potentiometer R ...
Page 14
A small heat sink VERSAWATT transistor is used as the series pass element in the fold back current system, Figure 17, since dissipation levels will only approach 10W. In this system, the D2201 diode is used for current sampling. Foldback ...
Page 15
Tone Control Circuits High slew rate, wide bandwidth, high output voltage capability and high input impedance are all characteristics required of tone control amplifiers. Two tone control circuits that exploit these characteristics of the CA3140 are shown in Figures 19 ...
Page 16
Wien Bridge Oscillator Another application of the CA3140 that makes excellent use of its high input impedance, high slew rate, and high voltage qualities is the Wien Bridge sine wave oscillator. A basic Wien Bridge oscillator is shown in Figure ...
Page 17
Pulse “droop” during the hold interval is 170pA/200pF which is 0.85µV/µs; (i.e., 170pA/200pF). In this case, 170pA represents the typical leakage current of the CA3080A when strobed off were increased to 2000pF, the “hold-droop” rate will 1 decrease ...
Page 18
R 2 5kΩ +15V 10kΩ CA3140 100kΩ OFFSET ADJUST ------ - ---------------------------- - GAIN ...
Page 19
Typical Performance Curves R = 2kΩ - 125 o 125 C 100 SUPPLY VOLTAGE (V) FIGURE 29. OPEN-LOOP VOLTAGE GAIN vs SUPPLY VOLTAGE AND TEMPERATURE R ...
Page 20
Typical Performance Curves 1000 = ±15V SUPPLY VOLTAGE 100 FREQUENCY (Hz) FIGURE 35. EQUIVALENT INPUT NOISE VOLTAGE vs FREQUENCY 20 CA3140, CA3140A (Continued) 100 80 ...
Page 21
Metallization Mask Layout Dimensions in parenthesis are in millimeters and are derived from the basic inch dimensions as indicated. Grid graduations are in mils (10 The photographs and dimensions represent a ...
Page 22
Dual-In-Line Plastic Packages (PDIP INDEX N/2 AREA -B- -A- D BASE PLANE -C- SEATING PLANE 0.010 (0.25 NOTES: 1. Controlling Dimensions: INCH. In case of conflict between ...
Page 23
... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...