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Part: EL4450C
Category:
Analog & Mixed-Signal Processing
-> Amplifiers
-> PGA (Programmable Gain Amplifiers)
-> Variable Gain
Description: Wideband Four-quadrant Multiplier
Company: Elantec Semiconductor, Inc. (acquired by Intersil)
Datasheet: Download EL4450C datasheet File size : 7 kB
Request For quote: Find where to buy EL4450C
Datasheet text preview:
D44450B.fm Page 1 Tuesday, April 21, 1998 9:51 AM
EL4450C
EL4450 C
Wideband Four-Quadrant Multiplier
Features
· Complete four-quadrant multiplier with output amp--requires no extra components · Good linearity of 0.3% · 90 MHz bandwidth for both X and Y inputs · Operates on ±5V to ±15V supplies · All inputs are differential · 400V/µs slew rate
General Description
The EL4450C is a complete four-quadrant multiplier circuit. It offers wide bandwidth and good linearity while including a powerful output voltage amplifier, drawing modest supply current. The EL4450C operates on ±5V supplies and has an analog input range of ±2V, making it ideal for video signal processing. AC characteristics do not vary over the ±5V to ±15V supply range. T h e multiplier has an operational temperature range of -40°C to +85°C and are packaged in plastic 14-pin P-DIP and SO.
Applications
· · · · Modulation/Demodulation RMS computation Real-time power computation Nonlinearity correction/generation
Ordering Information
Part No. EL4450CN EL4450CS Temp. Range -40°C to +85°C -40°C to +85°C Package 14-Pin P-DIP 14-Lead SO Outline # MDP0031 MDP0027
Connection Diagrams
January 1996 Rev B
© 1995 Elantec, Inc.
D44450B.fm Page 2 Tuesday, April 21, 1998 9:51 AM
EL4450C
EL44 50C
Wideband Four-Quadrant Multiplier
Absolute Maximum Ratings (T
V+ VS VI N VI N II N Positive Supply Voltage V+ to V- Supply Voltage Voltage at any Input or Feedback Difference between Pairs of Inputs or Feedback Current into any Input or Feedback Pin
A
= 25 °C)
16.5V 33V V+ to V6V 4 mA
IOUT PD TA TS
Output Current Maximum Power Dissipation Operating Temperature Range Storage Temperature Range
30 mA See Curves -40°C to +85°C -60°C to +150°C
Important Note: All parameters having Min/Max specifications are guaranteed. The Test Level column indicates the specific device testing actually performed during production and Quality inspection. Elantec performs most electrical tests using modern high-speed automatic test equipment, specifically the LTX77 Series system. Unless otherwise noted, all tests are pulsed tests, therefor TJ = TC = TA. Test Level I II III IV V Test Procedure 100% production tested and QA sample tested per QA test plan QCX0002. 100% production tested at TA = 25°C and QA sample tested at TA = 25°C, TMAX and TMIN per QA test plan QCX0002. QA sample tested per QA test plan QCX0002. Parameter is guaranteed (but not tested) by Design and Characterization Data. Parameter is typical value at TA = 25°C for information purposes only.
Open-Loop DC Electrical Characteristics
Power Supplies at ±5V, TA = 25°C, VFB = VOUT. Parameter VD I F F VC M VOS IB IOS Gain NLx NLy RIN CMRR PSRR VO IS C IS Description Differential Input Voltage--Clipping 0.2% nonlinearity Common-Mode Range of VDIFF = 0, VS = ±5V VS = ±15V Input Offset Voltage Input Bias Current Input Offset Current between XIN+ and XIN-, YIN+ and YIN-, REF and FB Gain Factor of VOUT = Gain × XIN+ × YIN Nonlinearity of X Input; XIN between -1V and +1V Nonlinearity of Y Input; YIN between -1V and +1V Input resistance Common-Mode Rejection Ratio, XIN and YIN Power-Supply Rejection Ratio, FB Output Voltage Swing (VIN = 0, VREF Varied) Output Short-Circuit Current Supply Current, VS = ±15V VS = ±5V VS = ±15V XIN+ to XIN-, YIN+ to YIN-, REF to FB 70 60 ±2.5 ±12.5 40 0.45 ±2.5 ±12.5 Min 1.8 Typ 2.0 1.0 ±2.8 ±12.8 8 9 0.5 0.5 0.3 0.2 230 90 90 72 ±2.8 ±12.8 85 15.4 18 I I mA mA I I I dB dB V 35 20 4 0.55 0.7 0.35 Max Test Level I V I I I I I I I I V Units V V V V mV µA µA V/V2 % % k
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D44450B.fm Page 3 Tuesday, April 21, 1998 9:51 AM
EL4450C
EL44 50C
Wideband Four-Quadrant Multiplier
Closed-Loop AC Electrical Characteristics
Power Supplies at ±12V, TA = 25°C, RL = 500¾, CL = 15pF Parameter BW, -3 dB BW, ±0.1 dB Peaking SR VN 0.1 dB Flatness Bandwidth Frequency Response Peaking Slew Rate, VOUT between -2V and +2V Input-Referred Noise Voltage Density 300 Description -3 dB Small-Signal Bandwidth, X or Y Min Typ 90 10 1.0 400 100 Max Test Level V V V I V Units MHz MHz dB V/µs nV/Hz
Test Circuit
Note: For typical performance curves, RF = 0, RG = ×, VS = ±5V, RL = 500¾, and CL = 15 pF unless otherwise noted.
Typical Performance Curves
Transfer Function of X Input for Various Y Inputs Transfer Function of Y Input for Various X Inputs
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D44450B.fm Page 4 Tuesday, April 21, 1998 9:51 AM
EL4450C
EL44 50C
Wideband Four-Quadrant Multiplier
Frequency Response for Various Feedback Divider Ratios
Frequency Response for Various RL, CL VS = ±5V
Frequency Response for Various RL, CL VS = ±15V
X Input Frequency Response for Various Y DC Inputs
Y Input Frequency Response for Various X DC Inputs
-3 dB Bandwidth and Peaking vs Supply Voltage
Change in Bandwidth and Peaking vs Temperature
Total Harmonic Distortion of X Input vs Frequency
Total Harmonic Distortion of Y Input vs Frequency
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D44450B.fm Page 5 Tuesday, April 21, 1998 9:51 AM
EL4450C
EL44 50C
Wideband Four-Quadrant Multiplier
Slew Rate vs Supply Voltage
Slew Rate vs Die Temperature
CMRR vs Frequency
Input Voltage Noise vs Frequency
Nonlinearity of X Input
Nonlinearity of Y Input
Bias Current vs Die Temperature
Common-Mode Input Range vs Supply Voltage
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