IC OPAMP VGA 168MHZ SGL 14SOIC

VCA820ID

Manufacturer Part NumberVCA820ID
DescriptionIC OPAMP VGA 168MHZ SGL 14SOIC
ManufacturerTexas Instruments
TypeVar Gain Amp
VCA820ID datasheets
 


Specifications of VCA820ID

Amplifier TypeVariable GainNumber Of Circuits1
Slew Rate1700 V/µs-3db Bandwidth168MHz
Current - Input Bias19µAVoltage - Input Offset4000µV
Current - Supply34mACurrent - Output / Channel160mA
Voltage - Supply, Single/dual (±)±3.5 V ~ 6 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case14-SOIC (3.9mm Width), 14-SOL
Number Of Channels1Number Of Elements1
Power Supply RequirementDualCommon Mode Rejection Ratio65dB
Input Resistance0.5@±5VMohmInput Offset Voltage17@±5VmV
Input Bias Current25@±5VnASingle Supply Voltage (typ)Not RequiredV
Dual Supply Voltage (typ)±5VPower Supply Rejection Ratio61dB
Rail/rail I/o TypeNoSingle Supply Voltage (min)Not RequiredV
Single Supply Voltage (max)Not RequiredVDual Supply Voltage (min)±3.5V
Dual Supply Voltage (max)±6VOperating Temp Range-40C to 85C
Operating Temperature ClassificationIndustrialMountingSurface Mount
Pin Count14Package TypeSOIC
For Use WithDEM-VCA-SO-1B - DEM-VCA-SO-1BLead Free Status / RoHS StatusLead free / RoHS Compliant
Output Type-Gain Bandwidth Product-
Other names296-22871-5  
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Wideband, > 40dB Adjust Range, Linear in dB
FEATURES
1
• 150MHz SMALL-SIGNAL BANDWIDTH
23
137MHz, 5V
BANDWIDTH (G = +10V/V)
PP
0.1dB GAIN FLATNESS to 28MHz
1700V/μs SLEW RATE
> 40dB GAIN ADJUST RANGE
HIGH GAIN ACCURACY: 20dB ±0.4dB
HIGH OUTPUT CURRENT: 160mA
APPLICATIONS
AGC RECEIVERS with RSSI
DIFFERENTIAL LINE RECEIVERS
PULSE AMPLITUDE COMPENSATION
VARIABLE ATTENUATORS
DROP-IN UPGRADE TO LMH6502
V
+V
IN+
IN
R
R
G+
FB
S
R
VCA820
G
R
G-
V
-V
IN-
IN
R
S
Figure 1. Differential Equalizer
95
90
85
80
75
70
65
60
55
50
45
Input-Referred
40
100k
1M
Frequency (Hz)
Figure 2. Common-Mode Rejection Ratio
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
X2Y is a trademark of X2Y Corporation.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
VARIABLE GAIN AMPLIFIER
Check for Samples:
VCA820
DESCRIPTION
The VCA820 is a dc-coupled, wideband, linear in dB,
continuously
amplifier.
single-ended conversion with a high-impedance gain
control input used to vary the gain down 40dB from
the nominal maximum gain set by the gain resistor
(R
) and feedback resistor (R
G
The VCA820 internal architecture consists of two
input buffers and an output current feedback amplifier
stage integrated with a multiplier core to provide a
complete variable gain amplifier (VGA) system that
does not require external buffering. The maximum
gain is set externally with two resistors, providing
flexibility in designs. The maximum gain is intended
to be set between +2V/V and +100V/V. Operating
from ±5V supplies, the gain control voltage for the
VCA820 adjusts the gain linearly in dB as the control
R
F
voltage varies from 0V to +2V. For example, set for a
maximum gain of +10V/V, the VCA820 provides
20dB, at +2V input, to –20dB at 0V input of gain
control range. The VCA820 offers excellent gain
linearity. For a 20dB maximum gain, and a
20W
gain-control input voltage varying between 1V and
2V, the gain does not deviate by more than ±0.4dB
(maximum at +25°C).
SINGLES
VCA810
VCA820
VCA821
10M
100M
VCA822
VCA824
SBOS395C – OCTOBER 2007 – REVISED OCTOBER 2009
variable,
voltage-controlled
It
provides
a
differential
).
F
VCA820 RELATED PRODUCTS
GAIN
ADJUST
INPUT
RANGE
NOISE
BANDWIDTH
DUALS
(dB)
(nV/√Hz)
80
2.4
VCA2612
45
1.25
VCA2613
45
1
VCA2615
52
0.8
VCA2617
48
4.1
40
8.2
40
7.0
40
8.2
40
7.0
Copyright © 2007–2009, Texas Instruments Incorporated
VCA820
gain
input
to
SIGNAL
(MHz)
35
80
80
50
50
150
420
150
420

VCA820ID Summary of contents

  • Page 1

    ... INPUT RANGE NOISE BANDWIDTH DUALS (dB) (nV/√Hz) — 80 2.4 VCA2612 45 1.25 VCA2613 45 1 VCA2615 52 0.8 VCA2617 48 4.1 — 40 8.2 — 40 7.0 — 40 8.2 — 40 7.0 Copyright © 2007–2009, Texas Instruments Incorporated VCA820 gain input to SIGNAL (MHz 150 420 150 420 ...

  • Page 2

    ... REF V- Product Folder Link(s): VCA820 www.ti.com ORDERING TRANSPORT NUMBER MEDIA, QUANTITY VCA820ID Rail, 50 VCA820IDR Tape and Reel, 2500 VCA820IDGST Tape and Reel, 250 VCA820IDGSR Tape and Reel, 2500 VCA820 UNIT ±6.3 V See Thermal Characteristics ± –65 to +125 °C +150 °C +140 ° ...

  • Page 3

    ... Typical value only for information. (2) Junction temperature = ambient for +25°C tested specifications. (3) Junction temperature = ambient at low temperature limit; junction temperature = ambient +23°C at high temperature limit for over temperature specifications. Copyright © 2007–2009, Texas Instruments Incorporated = ± 100Ω, unless otherwise noted. ...

  • Page 4

    ... UNITS MAX LEVEL ±3.75 ±3.7 V min ±3.6 ±3.5 V min ±130 ±130 mA min Ω typ V typ V typ ±6 ±6 V max 35 max 32 31.5 mA max –59 –58 dB min °C typ °C/W typ °C/W typ Copyright © 2007–2009, Texas Instruments Incorporated ( ...

  • Page 5

    ... Figure 5. NOMINAL GAIN vs CALCULATED GAIN -20 Equation A(V/ ´ -40 -60 Data -80 -100 0 0.2 0.4 0.6 0.8 1.0 1.2 Control Voltage (V) Figure 7. Copyright © 2007–2009, Texas Instruments Incorporated = ±5V, DC Parameters S = single-ended input on +V with – MAXIMUM GAIN ADJUST RANGE 2.6mA VMAX 100 ...

  • Page 6

    ... VMAX - 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Gain Control Voltage (V) Figure 10. TYPICAL DC DRIFT vs TEMPERATURE + Input Bias Current 15 10 Input Offset Voltage 5 0 Input Offset Current - 100 125 Temperature ( C) ° Figure 12. Copyright © 2007–2009, Texas Instruments Incorporated ...

  • Page 7

    ... 20MHz -300 Time (10ns/div) Figure 15. VIDEO DIFFERENTIAL GAIN/DIFFERENTIAL PHASE 0 -0.05 - +2V -0.10 -dG +2V G -0.15 -dG +1V -0.20 -0.25 -0. Video Loads Figure 17. Copyright © 2007–2009, Texas Instruments Incorporated = ±5V 1.33kΩ +2V single-ended input SO-14 package, unless otherwise noted. LARGE-SIGNAL FREQUENCY RESPONSE + - +1V G -15 A VMAX ...

  • Page 8

    ... VMAX R = 100 20MHz Maximum Current Through R Limited G 2nd-Harmonic 1.0 1.2 1.4 1.6 1.8 2.0 Gain Control Voltage (V) Figure 22. Constant Output Voltage Constant Input Voltage 1.2 1.4 1.6 1.8 2.0 Gain Control Voltage (V) Figure 24. Copyright © 2007–2009, Texas Instruments Incorporated ...

  • Page 9

    ... GROUP DELAY vs GAIN CONTROL VOLTAGE 12 1MHz 10 8 10MHz 20MHz 0 0 0.2 0.4 0.6 0.8 1.0 1.2 Gain Control Voltage (V) Figure 29. Copyright © 2007–2009, Texas Instruments Incorporated SBOS395C – OCTOBER 2007 – REVISED OCTOBER 2009 = ±5V VMAX = 1.33kΩ +2V single-ended input GAIN CONTROL FREQUENCY -12 1 ...

  • Page 10

    ... Product Folder Link(s): VCA820 www.ti.com = 6dB (continued) with –V at ground, and 22pF C = 10pF 47pF 100pF VCA820 OUT (1) 20W 1kW -V IN NOTE: ( optional. W 10M 100M 1G Frequency (Hz) Figure 32. 1k 10k 100k 1M 10M Frequency (Hz) Figure 34. Copyright © 2007–2009, Texas Instruments Incorporated ...

  • Page 11

    ... Time (10ns/div) Figure 37. GAIN FLATNESS, DEVIATION FROM LINEAR PHASE 0.05 0 -0.05 -0.10 -0.15 -0.20 -0. +2V -0. 20dB VMAX -0. Frequency (MHz) Figure 39. Copyright © 2007–2009, Texas Instruments Incorporated = ±5V 200Ω +2V, and V = single-ended input otherwise noted. LARGE-SIGNAL FREQUENCY RESPONSE + -12 - +1V G -18 0 ...

  • Page 12

    ... GAIN CONTROL VOLTAGE 20dB VMAX R = 100 20MHz Maximum Current Through R Limited G 2nd-Harmonic 1.0 1.2 1.4 1.6 1.8 Gain Control Voltage (V) Figure 44. = 20MHz 1.0 1.2 1.4 1.6 1.8 Gain Control Voltage (V) Figure 46. Copyright © 2007–2009, Texas Instruments Incorporated 1k W 2.0 2.0 ...

  • Page 13

    ... Time (10ns/div) Figure 49. FULLY-ATTENUATED RESPONSE + -10 -20 -30 - -50 G -60 -70 1M 10M Frequency (Hz) Figure 51. Copyright © 2007–2009, Texas Instruments Incorporated = ±5V VMAX = 200Ω +2V, and V = single-ended input -12 1.4 1.6 1.8 2.0 1M OUTPUT VOLTAGE AND CURRENT LIMITATIONS 2.5 5 2 ...

  • Page 14

    ... Frequency (MHz) Figure 55. Product Folder Link(s): VCA820 www.ti.com = 20dB (continued) with –V at ground, unless IN IN 1MHz 10MHz 20MHz 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Gain Control Voltage (V) Figure 54. 80 100 Copyright © 2007–2009, Texas Instruments Incorporated 2.0 ...

  • Page 15

    ... Figure 58. GAIN FLATNESS 0.10 0.05 0 -0.05 -0.10 -0.15 -0.20 -0.25 -0. Frequency (MHz) Figure 60. Copyright © 2007–2009, Texas Instruments Incorporated SBOS395C – OCTOBER 2007 – REVISED OCTOBER 2009 = ±5V 16.9Ω +2V single-ended input SO-14 package, unless otherwise noted. LARGE-SIGNAL FREQUENCY RESPONSE + ...

  • Page 16

    ... PP Resistance ( ) W Figure 63. 2nd-Harmonic Maximum Current Through R Limited 40dB W 3rd-Harmonic 1.0 1.2 1.4 1.6 1.8 Gain Control Voltage (V) Figure 65. = 20MHz) IN Constant Input Voltage 1.0 1.2 1.4 1.6 1.8 2.0 Gain Control Voltage (V) Figure 67. Copyright © 2007–2009, Texas Instruments Incorporated 1k 2.0 ...

  • Page 17

    ... INPUT LIMITED OVERDRIVE RECOVERY 0.3 Input Voltage Left Scale 0.2 0 40dB VMAX -0 0.85V G -0.3 Time (40ns/div) Figure 72. Copyright © 2007–2009, Texas Instruments Incorporated SBOS395C – OCTOBER 2007 – REVISED OCTOBER 2009 = ±5V VMAX = 16.9Ω +2V single-ended input 10mV ...

  • Page 18

    ... A S VMAX = 16.9Ω +2V single-ended input GROUP DELAY vs FREQUENCY 4.0 3.5 3.0 2.5 2.0 1.5 1 +2V 0 0.8 1.0 0 Product Folder Link(s): VCA820 www.ti.com = 40dB (continued) with –V at ground, and 100 Frequency (MHz) Figure 75. Copyright © 2007–2009, Texas Instruments Incorporated ...

  • Page 19

    ... IN 20W Figure 76. DC-Coupled, A Copyright © 2007–2009, Texas Instruments Incorporated SBOS395C – OCTOBER 2007 – REVISED OCTOBER 2009 APPLICATION INFORMATION For test purposes, the input impedance is set to 50Ω with a resistor to ground and the output impedance is set to 50Ω with a series output resistor. Voltage ...

  • Page 20

    ... R S (located at 1 (located When and C , compensate the with the zero and R allows the user to select Using 1 = 100pF and wanting the VCA820 5pF to ensure 1 . With all these 1 can be calculated to be 170Ω. The 1 Figure 80. Copyright © 2007–2009, Texas Instruments Incorporated an ( ...

  • Page 21

    ... R 8 50W 40kW 17.5kW C 7 100nF C 6 120nF Copyright © 2007–2009, Texas Instruments Incorporated 2.0 Equalized Frequency Response 1.5 1.0 0.5 0 -0.5 -1 Figure 81. Cable Attenuation versus Equalizer Note that this implementation shows the cable attenuation side-by-side with the equalization in the ...

  • Page 22

    ... PCBs, delivered with a user's guide. The summary information for these fixtures is shown in Table 1. EVM Ordering Information BOARD PART PRODUCT PACKAGE NUMBER VCA820ID SO-14 DEM-VCA-SO-1B VCA820IDGS MSOP-10 DEM-VCA-MSOP- 50W 200W 50W 22 Submit Documentation Feedback 2009............................................................................................................................................ The demonstration fixtures can be requested at the Texas Instruments web site (www ...

  • Page 23

    ... There are no differences between the packages in the recommended values for the gain and feedback have resistors. VCA820IDGS (MSOP-10 package) is lower than the bandwidth for the VCA820ID (SO-14 package). This difference is true for all gains, but especially true for = ±5V DC and S gains greater than 5V/V, as can be seen in ...

  • Page 24

    ... A 100Ω load line (the standard test circuit load) shows the full ±3.9V output swing capability, as shown in the Figure 3 Copyright © 2007–2009, Texas Instruments Incorporated Product Folder Link(s): VCA820 www.ti.com (Figure 50) ...

  • Page 25

    ... Figure 52 20dB and Figure 72 for the 40dB gain. Copyright © 2007–2009, Texas Instruments Incorporated OUTPUT VOLTAGE DYNAMIC RANGE With its large output current capability and its wide output voltage swing of ±3.9V typical on 100Ω load easy to forget other types of limitations that the VCA820 can encounter ...

  • Page 26

    ... Figure 89. For Output Stage Offset Compensation Circuit 4kW VCA820 50W 1kW 0 Input Stage and Multiplexer Core Offset Compensation Circuit Product Folder Link(s): VCA820 www.ti.com VCA820 4kTR 4kTR * S NOTE: R and R are noiseless +5V 10kW 0 -5V V OUT Copyright © 2007–2009, Texas Instruments Incorporated e O ...

  • Page 27

    ... Under this worst-case condition, P resistive load. Note that it is the power in the output stage and not in the load that determines internal power dissipation worst-case example, compute the maximum T using a VCA820ID (SO-14 package) in the circuit given by J Figure 76 maximum specified ambient temperature of +85°C. (6) ...

  • Page 28

    ... Figure 90. Internal ESD Protection Other network Product Folder Link(s): VCA820 www.ti.com transmission lines. For short Absolute Maximum Ratings table pair of back-to-back 90. These diodes begin to conduct ESD Protection diodes internally +V connected to all pins. S Internal Circuitry -V S Copyright © 2007–2009, Texas Instruments Incorporated ...

  • Page 29

    ... V Changes from Revision A (August, 2008) to Revision B • Revised second paragraph of the Wideband Variable Gain Amplifier Operation section describing pin 9 ........................ Copyright © 2007–2009, Texas Instruments Incorporated SBOS395C – OCTOBER 2007 – REVISED OCTOBER 2009 REVISION HISTORY .......................................................................................... ...

  • Page 30

    ... ACTIVE VCA820IDG4 ACTIVE VCA820IDGSR ACTIVE VCA820IDGSRG4 ACTIVE VCA820IDGST ACTIVE VCA820IDGSTG4 ACTIVE VCA820IDR ACTIVE VCA820IDRG4 ACTIVE (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. ...

  • Page 31

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing VCA820IDGSR MSOP DGS VCA820IDGST MSOP DGS VCA820IDR SOIC PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel Diameter Width (mm) W1 (mm) 10 2500 330.0 12.4 10 250 180.0 12 2500 330.0 16.4 ...

  • Page 32

    ... Device Package Type VCA820IDGSR MSOP VCA820IDGST MSOP VCA820IDR SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DGS 10 2500 DGS 10 250 D 14 2500 Pack Materials-Page 2 7-Oct-2009 Width (mm) Height (mm) 346.0 346.0 29.0 190.5 212.7 31.8 346.0 346.0 ...

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    ... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’ ...