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VCA810数据手册

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标签: VCA810

压控增益放大器VCA810的数据手册

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VCA810 High Gain Adjust Range Wideband and Variable Gain Amplifier VCA810 SBOS275G JUNE 2003REVISED DECEMBER 2015 1 Features 1 High Gain Adjust Range 40 dB Differential In SingleEnded Out Low Input Noise Voltage 24 nVHz Constant Bandwidth vs Gain 35 MHz High dBV Gain Linearity 03 dB Gain Control Bandwidth 25 MHz Low Output DC Error 40 mV High Output Current 60 mA Low Supply Current 248 mA Maximum for 40C to 85C Temperature Range Log Amplifiers 2 Applications Optical Receiver Time Gain ......

VCA810 High Gain Adjust Range, Wideband and Variable Gain Amplifier VCA810 SBOS275G –JUNE 2003–REVISED DECEMBER 2015 1 Features 1• High Gain Adjust Range: ±40 dB • Differential In, Single-Ended Out • Low Input Noise Voltage: 2.4 nV/√Hz • Constant Bandwidth vs Gain: 35 MHz • High dB/V Gain Linearity: ±0.3 dB • Gain Control Bandwidth: 25 MHz • Low Output DC Error: < ±40 mV • High Output Current: ±60 mA Low Supply Current: 24.8 mA • (Maximum for –40°C to 85°C Temperature Range) Log Amplifiers 2 Applications • Optical Receiver Time Gain Control • Sonar Systems • Voltage-Tunable Active Filters • • Pulse Amplitude Compensation • AGC receivers With RSSI • 3 Description a DC-coupled, wideband, The gain voltage-controlled continuously input to amplifier. The device provides a differential conversion with single-ended a high- impedance gain control input used to vary the gain over a –40-dB to 40-dB range linear in dB/V. Improved Replacement for VCA610 variable, VCA810 output is Operating from ±5-V supplies, the device gain control voltage adjusts the gain from –40 dB at a 0-V input to 40 dB at a –2-V input. Increasing the control voltage above ground attenuates the signal path to greater than 80 dB. Signal bandwidth and slew rate remain constant over the entire gain adjust range. This 40- dB/V gain control is accurate within ±1.5 dB (±0.9 dB for high grade), allowing the gain control voltage in an AGC application to be used as a received signal strength indicator (RSSI) with ±1.5-dB accuracy. Excellent common-mode rejection and common- mode input range at the two high-impedance inputs allow the device to provide a differential receiver operation with gain adjust. The output signal is referenced to ground. Zero differential input voltage gives a 0-V output with a small DC offset error. Low input noise voltage ensures good output SNR at the highest gain settings. In applications where pulse edge information is critical, and the device is being used to equalize varying channel loss, minimal change in group delay over gain setting retains excellent pulse edge information. An improved output stage provides adequate output current to drive the most demanding loads. Although analog-to-digital principally the converters (ADCs) or second-stage amplifiers, ±60-mA output doubly- terminated 50-Ω lines or a passive post-filter stage over the ±1.7-V output voltage range. intended current drives easily drive to Device Information PART NUMBER PACKAGE VCA810 SOIC (8) BODY SIZE (NOM) 4.90 mm × 3.91 mm Functional Block Diagram 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. VCA810 SBOS275G –JUNE 2003–REVISED DECEMBER 2015 www.ti.com Table of Contents 1 Features.................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Revision History..................................................... 2 5 Device Comparison Table..................................... 3 6 Pin Configuration and Functions ......................... 3 7 Specifications......................................................... 4 7.1 Absolute Maximum Ratings ..................................... 4 7.2 ESD Ratings.............................................................. 4 7.3 Recommended Operating Conditions....................... 4 7.4 Thermal Information.................................................. 4 7.5 Electrical Characteristics........................................... 5 7.6 High Grade DC Characteristics: VS = ±5 V (VCA810AID) ............................................................. 9 7.7 Typical Characteristics............................................ 11 8 Detailed Description ............................................ 16 8.1 Overview ................................................................. 16 8.2 Functional Block Diagram ....................................... 16 4 Revision History 8.3 Feature Description................................................. 16 8.4 Device Functional Modes........................................ 20 9 Applications and Implementation ...................... 21 9.1 Application Information............................................ 21 9.2 Typical Application .................................................. 30 10 Power Supply Recommendations ..................... 31 11 Layout................................................................... 31 11.1 Layout Guidelines ................................................. 31 11.2 Layout Example .................................................... 32 12 Device and Documentation Support ................. 33 12.1 Device Support...................................................... 33 12.2 Documentation Support ........................................ 33 12.3 Community Resources.......................................... 33 12.4 Trademarks ........................................................... 33 12.5 Electrostatic Discharge Caution............................ 33 12.6 Glossary ................................................................ 33 13 Mechanical, Packaging, and Orderable Information ........................................................... 33 Changes from Revision F (December 2010) to Revision G Page • Added ESD Ratings table, Feature Description section, Device Functional Modes, Application and Implementation section, Power Supply Recommendations section, Layout section, Device and Documentation Support section, and Mechanical, Packaging, and Orderable Information section. ................................................................................................. 1 • Changed DC Performance, Input offset current parameter unit from mA to nA in High Grade DC Characteristics table..... 9 Changes from Revision E (August 2008) to Revision F Page • Deleted lead temperature specification from Absolute Maximum Ratings table ................................................................... 4 • Corrected typo in Figure 34.................................................................................................................................................. 21 Changes from Revision D (February, 2006) to Revision E Page • Changed storage temperature minimum value in Absolute Maximum Ratings table from –40°C to –65°C .......................... 4 2 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: VCA810 www.ti.com 5 Device Comparison Table SINGLES VCA811 — — — — — DUALS — VCA2612 VCA2613 VCA2614 VCA2616 VCA2618 6 Pin Configuration and Functions VCA810 SBOS275G –JUNE 2003–REVISED DECEMBER 2015 GAIN ADJUST RANGE (dB) INPUT NOISE (nV/√Hz) SIGNAL BANDWIDTH (MHz) 2.4 1.25 1 3.6 3.3 5.5 80 80 80 40 40 30 80 45 45 45 45 45 D Package 8-Pin SOIC Top View (1) High grade version indicator. (2) NC = Not connected. NO. 1 2 3 4 5 6 7 8 PIN NAME +In GND Gain Control, VC NC VOUT +VS –VS –In I/O I P I — O P P I Pin Functions DESCRIPTION Noninverting input Ground, serves as reference for gain control pin Gain control No connect Output Positive supply Negative supply Inverting input Copyright © 2003–2015, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Links: VCA810 VCA810 SBOS275G –JUNE 2003–REVISED DECEMBER 2015 7 Specifications 7.1 Absolute Maximum Ratings Over operating free-air temperature range, unless otherwise noted.(1) MIN www.ti.com UNIT V MAX ±6.5 Power supply Internal power dissipation Differential input voltage Input common-mode voltage Junction temperature, TJ Storage temperature, Tstg (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings See Thermal Information ±VS ±VS 150 125 V V °C °C –65 only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. 7.2 ESD Ratings V(ESD) Electrostatic discharge Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001(1) Charged-device model (CDM), per JEDEC specification JESD22- C101(2) Machine Model (MM) UNIT V VALUE ±2000 ±1500 ±200 (1) (2) JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. 7.3 Recommended Operating Conditions over operating free-air temperature range (unless otherwise noted) Temperature Supply voltage 7.4 Thermal Information THERMAL METRIC(1) MIN –40 ±4 NOM 25 ±5 MAX 85 ±5.5 UNIT °C V VCA810 D (SOIC) 8 PINS UNIT RθJA RθJC(top) RθJB ψJT ψJB RθJC(bot) (1) For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics application Junction-to-ambient thermal resistance Junction-to-case (top) thermal resistance Junction-to-board thermal resistance Junction-to-top characterization parameter Junction-to-board characterization parameter Junction-to-case (bottom) thermal resistance °C/W °C/W °C/W °C/W °C/W °C/W 80 51 45 14 45 n/a report, SPRA953. 4 Submit Documentation Feedback Copyright © 2003–2015, Texas Instruments Incorporated Product Folder Links: VCA810 www.ti.com VCA810 SBOS275G –JUNE 2003–REVISED DECEMBER 2015 7.5 Electrical Characteristics At RL = 500 Ω and VIN = single-ended input on V+ with V− at ground, VS = ±5 V, unless otherwise noted. TEST CONDITIONS TEST LEVEL(1) MIN TYP MAX UNIT PARAMETER AC PERFORMANCE Small-signal bandwidth (see Functional Block Diagram) −2 V ≤ VC ≤ 0 V Large-signal bandwidth VO = 2 VPP, −2 ≤ VC ≤ −1 Frequency response peaking VO < 500 mVPP, −2 V ≤ VC ≤ 0 V Slew rate VO = 3.5-V step, −2 ≤ VC ≤ −1, 10% to 90% Settling time to 0.01% VO = 1-V step, −2 ≤ VC ≤ −1 Rise-and-fall time VO = 1-V step, −2 ≤ VC ≤ −1 Group delay Group delay variation G = 0 dB, VC= −1 V, f = 5 MHz, VO = 500 mVPP VO < 500 mVPP, −2 V ≤ VC ≤ 0 V, f = 5 MHz TJ = 25°C TJ = 25°C HD2 Second harmonic distortion VO = 1 VPP, f = 1 MHz, VC = −1 V, G = 0 dB HD3 Third harmonic distortion VO = 1 VPP, f = 1 MHz, VC = −1 V, G = 0 dB Input voltage noise VC = −2 V Input current noise −2 V ≤ VC ≤ 0 V Fully attenuated feedthrough f ≤ 1 MHz, VC > 200 mV Overdrive recovery VIN = 2 V to 0 V, VC = −2 V, G = 40 dB TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 25°C TJ = 25°C(2) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) TJ = 25°C TJ = 25°C(2) TJ = 0°C to 70°C(3) TJ = –40°C to 85°C(3) B B B B B B C C B B B B B B 35 35 0.1 350 30 10 6.2 3.5 –71 −35 2.4 1.4 −80 100 MHz MHz dB V/μs ns ns ns ns dBc dBc 2.8 3.4 3.5 1.8 2 2.1 −70 nV/√Hz pA/√Hz dB ns 30 29 29 30 29 29 0.5 0.5 0.5 300 300 295 40 41 41 12 12.1 12.1 –51 –50 –49 –34 –32 –29 150 (1) Test levels: (A) 100% tested at 25°C. Over temperature limits set by characterization and simulation. (B) Limits set by characterization (2) (3) and simulation. (C) Typical value; only for information. Junction temperature = ambient for 25°C tested specifications. Junction temperature = ambient at low temperature limit; junction temperature = ambient 30°C at high temperature limit for over temperature specifications. Copyright © 2003–2015, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: VCA810
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