IC OPAMP VGA 710MHZ SGL 10MSOP

VCA824IDGSR

Manufacturer Part NumberVCA824IDGSR
DescriptionIC OPAMP VGA 710MHZ SGL 10MSOP
ManufacturerTexas Instruments
VCA824IDGSR datasheet
 


Specifications of VCA824IDGSR

Amplifier TypeVariable GainNumber Of Circuits1
Slew Rate2500 V/µs-3db Bandwidth710MHz
Current - Input Bias19µAVoltage - Input Offset4000µV
Current - Supply36.5mACurrent - Output / Channel90mA
Voltage - Supply, Single/dual (±)±4 V ~ 6 VOperating Temperature-40°C ~ 85°C
Mounting TypeSurface MountPackage / Case10-MSOP, Micro10™, 10-uMAX, 10-uSOP
Number Of Channels1Common Mode Rejection Ratio (min)65 dB
Input Offset Voltage17 mVMaximum Operating Temperature+ 85 C
Mounting StyleSMD/SMTMaximum Dual Supply Voltage+/- 6 V
Minimum Operating Temperature- 40 CFor Use WithDEM-VCA-MSOP-1A - DEM-VCA-MSOP-1A
Lead Free Status / RoHS StatusLead free / RoHS CompliantOutput Type-
Gain Bandwidth Product-  
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Ultra-Wideband, > 40dB Gain Adjust Range, Linear in V/V
FEATURES
1
710MHz SMALL-SIGNAL BANDWIDTH
23
(G = +2V/V)
320MHz, 4V
BANDWIDTH (G = +10V/V)
PP
0.1dB GAIN FLATNESS to 135MHz
2500V/ s SLEW RATE
> 40dB GAIN ADJUST RANGE
HIGH GAIN ACCURACY: 20dB ±0.3dB
HIGH OUTPUT CURRENT: ±90mA
APPLICATIONS
DIFFERENTIAL LINE RECEIVERS
DIFFERENTIAL EQUALIZERS
PULSE AMPLITUDE COMPENSATION
VARIABLE ATTENUATORS
VOLTAGE-TUNABLE ACTIVE FILTERS
V
+V
IN1
IN
R
G+
R
S
FB
R
1
R
VCA824
G
C
1
R
G-
V
-V
20W
IN2
IN
R
S
Differential Equalizer
9
Equalized Frequency Response
6
3
0
Initial Frequency Response
-3
of the VCA824 with RC Load
-6
-9
-12
-15
-18
-21
-24
1M
10M
Frequency (Hz)
Differential Equalization of an RC Load
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 registered trademark of X2Y Attenuators LLC.
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
DESCRIPTION
The VCA824 is a dc-coupled, wideband, linear in V/V,
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 VCA824 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 +40V/V. Operating from
±5V supplies, the gain control voltage for the VCA824
adjusts the gain linearly in V/V as the control voltage
varies from +1V to –1V. For example, set for a
R
maximum gain of +10V/V, the VCA824 provides
F
10V/V, at +1V input, to 0.1V/V at –1V input of gain
control range. The VCA824 offers excellent gain
R
L
V
linearity. For a 20dB maximum gain, and a
OUT
C
gain-control input voltage varying between 0V and
L
1V, the gain does not deviate by more than ±0.3dB
(maximum at +25°C).
SINGLES
VCA810
VCA820
VCA821
VCA822
VCA824
100M
1G
SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008
variable,
voltage-controlled
It
provides
a
differential
).
F
VCA824 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
6.0
40
8.2
40
6.0
Copyright © 2007–2008, Texas Instruments Incorporated
VCA824
gain
input
to
SIGNAL
(MHz)
35
80
80
50
50
150
420
150
420

VCA824IDGSR 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 6.0 — 40 8.2 — 40 6.0 Copyright © 2007–2008, Texas Instruments Incorporated VCA824 gain input to SIGNAL (MHz 150 420 150 420 ...

  • Page 2

    ... CC Product Folder Link(s): VCA824 www.ti.com ORDERING TRANSPORT NUMBER MEDIA, QUANTITY VCA824ID Rail, 50 VCA824IDR Tape and Reel, 2500 VCA824IDGST Tape and Reel, 250 VCA824IDGSR Tape and Reel, 2500 VCA824 UNIT ±6.5 V See Thermal Characteristics ± –65 to +125 °C +260 °C +150 ° ...

  • 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 © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ± 80Ω ...

  • Page 4

    ... UNITS MAX LEVEL ±3.4 ±3.3 V min ±3.3 ±3.2 V min =50 =45 mA min Ω typ C V typ C ±4 ±4 V min ±6 ±6 V max 38 38.5 mA max 34 max -59 -58 dB min °C typ C °C/W typ C °C/W typ C Copyright © 2007–2008, Texas Instruments Incorporated ( ...

  • Page 5

    ... Relative Error to Linear Regression 15 14 Linear Regression 13 0 0.2 0.4 0.6 Control Voltage (V) Figure 5. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ±5V, DC Parameters S = single-ended input on +V with – MAXIMUM GAIN ADJUST RANGE 2.6mA ...

  • Page 6

    ... Figure 11. Product Folder Link(s): VCA824 www.ti.com at ground, unless otherwise noted +2V/V) VMAX - 0.2 0.4 0.6 0.8 Gain Control Voltage (V) Figure +40V/V) VMAX - 0.2 0.4 0.6 0.8 Gain Control Voltage (V) Figure 10 125 Copyright © 2007–2008, Texas Instruments Incorporated 1.0 1.0 ...

  • Page 7

    ... -0.2 -0.3 -0.4 - -0.5 -0.6 - +1V G -0.7 -0.8 -0 Number of Video Loads Figure 16. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ±5V 453Ω +1V single-ended input SO-14 package, unless otherwise noted. LARGE-SIGNAL FREQUENCY RESPONSE +1V G ...

  • Page 8

    ... Through R Limited G 3rd-Harmonic 2nd-Harmonic -0.2 0 0.2 0.4 0.6 0.8 1.0 Gain Control Voltage (V) Figure 21. vs GAIN CONTROL VOLTAGE Constant Input Voltage Constant Output Voltage -0.2 0 0.2 0.4 0.6 0.8 1.0 Gain Control Voltage (V) Figure 23. Copyright © 2007–2008, Texas Instruments Incorporated 1k ...

  • Page 9

    ... Gain Control Voltage (V) Figure 28. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ±5V VMAX = 453Ω +1V single-ended input GAIN CONTROL FREQUENCY RESPONSE ...

  • Page 10

    ... Product Folder Link(s): VCA824 www.ti.com = +2V/V (continued) with –V at ground, and 10pF 22pF C = 100pF 47pF VCA824 V OUT (1) C 1kW L - NOTE: ( optional 100 1k Capacitive Load (pF) Figure 31. INPUT CURRENT NOISE DENSITY 1k 10k 100k 1M 10M Frequency (Hz) Figure 33. Copyright © 2007–2008, Texas Instruments Incorporated ...

  • Page 11

    ... GAIN FLATNESS, DEVIATION FROM LINEAR PHASE 0.1 0 -0.1 -0.2 -0.3 Right Scale -0.4 -0 +10V/V VMAX V = + 100 Frequency (MHz) Figure 38. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ±5V 80Ω +1V, and V = single-ended input otherwise noted. LARGE-SIGNAL FREQUENCY RESPONSE +1V G ...

  • Page 12

    ... Gain Control Voltage (V) Figure 43. vs GAIN CONTROL VOLTAGE Constant Input Voltage Constant Output Voltage f = 20MHz At 50 Matched Load W -0.2 0 0.2 0.4 0.6 0.8 1.0 Gain Control Voltage (V) Figure 45. Copyright © 2007–2008, Texas Instruments Incorporated 1k 1.0 ...

  • Page 13

    ... Figure 48. FULLY-ATTENUATED RESPONSE + -10 -20 -30 -40 - -1V -60 G -70 -80 Input Referred -90 -100 1M 10M Frequency (Hz) Figure 50. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ±5V VMAX = 80Ω +1V, and V = single-ended input GAIN CONTROL FREQUENCY RESPONSE 0. -12 -15 0.4 0.8 1 ...

  • Page 14

    ... GROUP DELAY vs FREQUENCY Frequency (MHz) Figure 54. Product Folder Link(s): VCA824 www.ti.com = +10V/V (continued) with –V at ground, unless IN IN 10MHz 20MHz 0 0.2 0.4 0.6 0.8 Gain Control Voltage (V) Figure 53. 100 Copyright © 2007–2008, Texas Instruments Incorporated 1.0 ...

  • Page 15

    ... GAIN FLATNESS, DEVIATION FROM LINEAR PHASE 0 +40V/V VMAX V = +1V 0 -0.1 -0.2 -0.3 -0.4 -0 Frequency (MHz) Figure 59. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ±5V 18Ω +1V single-ended input package, unless otherwise noted. LARGE-SIGNAL FREQUENCY RESPONSE ...

  • Page 16

    ... Gain Control Voltage (V) Figure 64. vs GAIN CONTROL VOLTAGE Constant Input Voltage Constant Output Voltage f = 20MHz At 50 Matched Load W 0 0.2 0.4 0.6 0.8 1.0 -0.2 Gain Control Voltage (V) Figure 66. Copyright © 2007–2008, Texas Instruments Incorporated 1k 1.0 ...

  • Page 17

    ... Left Scale 0.2 0.1 0 -0.1 -0.2 Output Voltage -0.3 Right Scale -0.4 Time (40ns/div) Figure 71. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 = ±5V +40V/V (continued) S VMAX = 18Ω +1V single-ended input GAIN CONTROL FREQUENCY RESPONSE ...

  • Page 18

    ... Submit Documentation Feedback 2008....................................................................................................................................... = ±5V +40V/V (continued) S VMAX = 18Ω +1V single-ended input 2.5 2.0 1.5 1 0.4 0.6 0.8 1.0 Product Folder Link(s): VCA824 www.ti.com with –V at ground, and SO- GROUP DELAY vs FREQUENCY 100 Frequency (MHz) Figure 74. Copyright © 2007–2008, Texas Instruments Incorporated ...

  • Page 19

    ... IN 20W Figure 75. DC-Coupled, A Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 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

    ... Product Folder Link(s): VCA824 www.ti.com inputs of the VCA824 Figure 78 . Also recommended to G and the S Figure 79 shows the rejection ratio for this circuit = +1V. Note any other VCA824 20W R S Input Referred 100k 1M 10M 100M Frequency (Hz) Copyright © 2007–2008, Texas Instruments Incorporated are ...

  • Page 21

    ... R can be calculated to be 20Ω. 1 shows the frequency response for both the initial, unequalized frequency response and the resulting equalized frequency response. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 Initial Frequency Response ...

  • Page 22

    ... R = 332Ω, and targeting 1 2 OPA690 was selected for the 84, and in order to limit peaking in has the effect of setting and providing flat frequency 0.8V = +0.8V in the gain equation ´ 2 ≤ +1V. G Copyright © 2007–2008, Texas Instruments Incorporated (5) G the (6) G (7) ...

  • Page 23

    ... PRODUCT PACKAGE NUMBER VCA824ID SO-14 DEM-VCA-SO-1B VCA824IDGS MSOP-10 DEM-VCA-MSOP-1A The demonstration fixtures can be requested at the Texas Instruments web site (www.ti.com) through the VCA824 product folder. MACROMODELS AND APPLICATIONS SUPPORT Computer simulation of circuit performance using SPICE is often useful when performance of analog circuits and systems. This ...

  • Page 24

    ... VMAX 200 400 600 800 Frequency (MHz) and R F versus A VMAX A = 2V/V VMAX A = 5V/V VMAX = 10V/V VMAX A = 20V/V VMAX A = 40V/V VMAX 200 400 600 800 Frequency (MHz) and R F versus A VMAX Copyright © 2007–2008, Texas Instruments Incorporated the 1000 G 1000 G ...

  • Page 25

    ... Safe Operating Area of 1W maximum internal power dissipation. Superimposing resistor load lines onto the plot shows that the Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 VCA824 can drive ±2.5V into 25Ω or ±3.5V into 50Ω ...

  • Page 26

    ... Output Stage Offset Compensation Circuit 0 4kW VCA824 50W 1kW 0 Input Stage and Multiplexer Core Offset Compensation Circuit Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): VCA824 www.ti.com shows how to compensate both core potentiometer. This +5V 10kW -5V V OUT ...

  • Page 27

    ... 4kTR * S2 Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 This model is formulated in Figure 89 ´ O VMAX density. The A more complete model is shown in additional information on this model and the actual modeled noise terms, please contact the High-Speed Product Application Support team at www ...

  • Page 28

    ... Best results are obtained by soldering the VCA824 onto the board. Product Folder Link(s): VCA824 www.ti.com and the decoupling capacitors. connections should always preserve the high-frequency the output pin. Other network transmission lines. For Copyright © 2007–2008, Texas Instruments Incorporated The be short ...

  • Page 29

    ... The diodes can typically withstand a continuous current of 30mA without destruction. To ensure long-term reliability, however, diode current should be externally limited to 10mA whenever possible. Copyright © 2007–2008, Texas Instruments Incorporated SBOS394C – NOVEMBER 2007 – REVISED DECEMBER 2008 External Pin table. ...

  • Page 30

    ... Changes from Revision A (December 2007) to Revision B Changed storage temperature range rating in Absolute Maximum Ratings table from –40°C to +125°C to –65°C to +125°C ................................................................................................................................................................................... 2 30 Submit Documentation Feedback 2008....................................................................................................................................... Revision History ................................................................................................ ........................................................................................... Copyright © 2007–2008, Texas Instruments Incorporated Product Folder Link(s): VCA824 www.ti.com Page ......................... 19 Page ...

  • Page 31

    ... PACKAGING INFORMATION (1) Orderable Device Status VCA824ID ACTIVE VCA824IDG4 ACTIVE VCA824IDGSR ACTIVE VCA824IDGSRG4 ACTIVE VCA824IDGST ACTIVE VCA824IDGSTG4 ACTIVE VCA824IDR ACTIVE VCA824IDRG4 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 32

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing VCA824IDGSR MSOP DGS VCA824IDGST MSOP DGS VCA824IDR SOIC D PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 10 2500 330.0 12.4 5.3 10 250 180.0 12.4 5 ...

  • Page 33

    ... Device Package Type VCA824IDGSR MSOP VCA824IDGST MSOP VCA824IDR SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DGS 10 2500 DGS 10 250 D 14 2500 Pack Materials-Page 2 19-Nov-2008 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’ ...