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Part: EL4451
Category:
Description: op Amp, 70MHz, Variable-Gain, Differential Inputs, Gain of 2
Company: Intersil Corporation
Datasheet: Download EL4451 datasheet File size : 7 kB
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EL4451C
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
Features
Complete variable-gain amplifier with output amplifier requires no extra components Excellent linearity of 0 2% 70 MHz signal bandwidth Operates on g 5V to g 15V supplies All inputs are differential 400V ms slew rate l 70dB attenuation 4 MHz
General Description
The EL4451C is a complete variable gain circuit It offers wide bandwidth and excellent linearity while including a powerful T output voltage amplifier drawing modest supply current he EL4451C operates on g 5V to g 15V supplies and has an analog input range of g 2V making it ideal for video signal processing AC characteristics do not change appreciably over th T e g 5V to g 15V supply range he circuit has an operational temperature range of b 40 C to a T 85 C and is packaged in plastic 14-pin DIP and 14-lead SO he EL4451C is fabricated with Elantec's proprietary complementary bipolar process which provides excellent signal symmetry and is free from latch up C
Applications
Leveling of varying inputs Variable filters Fading Text insertion into video
onnection Diagram
Outline MDP0031 MDP0027
Ordering Information
E art No P
Temp Range
Package
L4451CN b 40 C to a 85 C 14-Pin P-DIP EL4451CS b 40 C to a 85 C 14-Lead SO
4451-1
October 1994 Rev A
Note All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication however this data sheet cannot be a ``controlled document'' Current revisions if any to these spe1ifications are maintained at the factory and are available upon your request We recommend checking the revision level before finalization of your design documentation c
994 Elantec Inc
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
Absolute Maximum Ratings (TA e 25 C)
Va VS VIN DVIN IIN Positive Supply Voltage V a to Vb Supply Voltage Voltage at any Input or Feedback Difference between Pairs of Inputs or Feedback Current into any Input or Feedback Pin 16 5V 33V V a to Vb 6V 4mA IOUT PD TA TS Continuous Output Current Maximum Power Dissipation Operating Temperature Range Storage Temperature Range 30mA See Curves b 40 C to a 85 C b 60 C to a 150 C
A Important Note ll 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 therefore TJ e TC e TA T est Level I I I I III V V O Test Procedure 100% production tested and QA sample tested per QA test plan QCX0002 100% production tested at TA e 25 C and QA sample tested at TA e 25 C T MAX 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 e 25 C for information purposes only
P en-Loop p arameter VDIFF VCM VOS VOS FB VG 100% VG 0% VG 1V IB IOS NL Ft RIN VIN RIN FB RIN RGAIN
DC Electrical Characteristics Power Supplies at g 5V
Description Min 18
g2 0
TA e 25 C RL e 500X Max Test Level I V I V 25 25 22 0 06 1 15 0 4 05
b 70
Typ 20 13
g2 8 g 12 8
Units V V V V mV mV V V VV mA mA % dB TD is 3 3in KX KX KX
Signal input differential input voltage - Clipping 0 2% nonlinearity Common-mode range of VIN VDIFF e 0 Vs e g 5V Vs e g 15V Input offset voltage Output offset voltage Extrapolated voltage for 100% gain Extrapolated voltage for 0% gain Gain at VGAIN e 1V Input bias current (all inputs) Input offset current between VIN a and VINb Gain a and Gainb FB and Ref Nonlinearity VIN between b1V and a 1V VG e 1V Signal feedthrough VG e b1V Input resistance VIN Input resistance FB Input resistance gain input
7 8 19
b 0 16
I I I I I I I I I I V I
21
b 0 06
0 95
b 20
1 05
b9
0
2
02
b 100
100 200 50
230 460 100
2
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
Open-Loop DC Electrical Characteristics
Power Supplies at g 5V TA e 25 C RL e 500X P arameter CMRR PSRR VO ISC IS Description Common-mode rejection ratio of VIN Power supply rejection ratio of VOS FB VS e g 5V to g 15V Output voltage swing VS e g 5V (VIN e 0 VREF varied) VS e g 15V Output short-circuit current Supply current VS e g 15V Min 70 50
g2 5 g 12 5
Contd
Typ 90 60
g2 8 g 12 8
Max
Test Level I I I I
Units dB dB V mA mA
40
85 15 5 18
I
Closed-Loop AC Electrical Characteristics
Power supplies at g 12V TA e 25 C RL e 500X CL e 15pF VG e 1V Parameter BW b3dB BW g0 1dB Peaking BW gain SR VN dG d Ti Description
b 3dB small-signal bandwidth signal input
Min
Typ 70 10 06 70 400 110 09 02
Max
Test Level V V V V V V V V
Units MHz MHz dB MHz V ms TD is 1 8in nV SHz %
0 1dB flatness bandwidth signal input Frequency response peaking
b 3dB small-signal bandwidth gain input
Slew rate VOUT between b2V and a 2V RF e RG e 500X Input referred noise voltage density Differential gain error Voffset between b0 7V and a 0 7V Differential phase error Voffset between b0 7V and a 0 7V
est Circuit
4451 3
Note For typical performance curves RF e 0 RG e % VGAIN e 1V RL e 500X and CL e 15 pF unless otherwise noted 3
TD is 1 8in
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
Typical Performance Curves
Frequency Response for Various Feedback Divider Ratios Frequency Response for Various RL CL VS e g 5V Frequency Response for Various RL CL VS e g 15V
4451 4
4451 5
4451 6
a ain b3 dB Bandwidth G nd Peaking vs Load Resistance
b 3 dB Bandwidth and Peaking vs Supply Voltage
b 3 dB Bandwidth and Peaking vs Die Temperature
4451 7
4451 8
4451 9
Frequency Response for Various Gain Settings
Slew Rate vs Supply Voltage
Slew Rate vs Die Temperature
4451 10
4451 11
4451 12
4
EL4451C
Wideband Variable-Gain Amplifier Gain of 2
Typical Performance Curves
Common-Mode Rejection Ratio vs Frequency
Contd
Input Voltage Noise vs Frequency Nonlinearity vs Input Signal
4451 13
4451 14 4451 15
Differential Gain Error vs Input Offset Voltage VS e g 5V or g 12V
Differential Phase Error vs Input Offset Voltage VS e g 5V
Differential Phase Error vs Input Offset Voltage VS e g 12V
4451 16
4451 17
4451 18
Differential Gain and Phase Errors vs Gain Setting
Differential Gain and Phase Errors vs Load Resistance
4451 19
4451 20
5
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