Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Amplifier - Video buffering Rail-to-rail 250 MHz VSSOP 8

FEATURES

APPLICATIONS

Summary of content (37 pages)

PAGE 1
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 Dual, Low-Power, High-Speed, Fixed-Gain Operational Amplifier FEATURES Using complementary common-emitter outputs provides an output swing to within 30mV of ground and 60mV of the positive supply.
PAGE 2
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
PAGE 3
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ELECTRICAL CHARACTERISTICS: VS = ±5V Boldface limits are tested at +25C. At TA = +25°C, G = +2V/V, and RL = 150Ω to GND, unless otherwise noted (see Figure 63).
PAGE 4
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±5V (continued) Boldface limits are tested at +25C. At TA = +25°C, G = +2V/V, and RL = 150Ω to GND, unless otherwise noted (see Figure 63).
PAGE 5
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ELECTRICAL CHARACTERISTICS: VS = +5V Boldface limits are tested at +25°C. At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 2V, unless otherwise noted (see Figure 61).
PAGE 6
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS: VS = +5V (continued) Boldface limits are tested at +25°C. At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 2V, unless otherwise noted (see Figure 61).
PAGE 7
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ELECTRICAL CHARACTERISTICS: VS = +3.3V Boldface limits are tested at +25°C. At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 0.75V, unless otherwise noted (see Figure 62). OPA2832ID, IDGK PARAMETER CONDITIONS +25°C G = +1, VO ≤ 0.
PAGE 8
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com ELECTRICAL CHARACTERISTICS: VS = +3.3V (continued) Boldface limits are tested at +25°C. At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 0.75V, unless otherwise noted (see Figure 62).
PAGE 9
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 TYPICAL CHARACTERISTICS: VS = ±5V At TA = +25°C, G = +2V/V, and RL = 150Ω to GND, unless otherwise noted (see Figure 63). SMALL-SIGNAL FREQUENCY RESPONSE 3 VO = 0.
PAGE 10
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS: VS = ±5V (continued) At TA = +25°C, G = +2V/V, and RL = 150Ω to GND, unless otherwise noted (see Figure 63).
PAGE 11
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 TYPICAL CHARACTERISTICS: VS = ±5V (Differential) At TA = +25°C, Differential Gain = +2V/V, and RL = 500Ω, unless otherwise noted. DIFFERENTIAL PERFORMANCE TEST CIRCUIT SMALL-SIGNAL FREQUENCY RESPONSE 9 +5V GD = +2V/V RL = 500Ω VO = 0.
PAGE 12
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS: VS = +5V At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 2V, unless otherwise noted (see Figure 61). SMALL-SIGNAL FREQUENCY RESPONSE 3 0 Normalized Gain (dB) 0 Normalized Gain (dB) LARGE-SIGNAL FREQUENCY RESPONSE 3 VO = 0.
PAGE 13
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 TYPICAL CHARACTERISTICS: VS = +5V (continued) At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 2V, unless otherwise noted (see Figure 61).
PAGE 14
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS: VS = +5V (continued) At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 2V, unless otherwise noted (see Figure 61). COMMON-MODE REJECTION RATIO AND POWER-SUPPLY REJECTION RATIO vs FREQUENCY COMPOSITE VIDEO dG/dP 80 1.2 +5V 70 1.0 1 /2 60 Video Loads OPA 2832 0.
PAGE 15
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 TYPICAL CHARACTERISTICS: VS = +5V (continued) At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 2V, unless otherwise noted (see Figure 61).
PAGE 16
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS: VS = +5V (Differential) At TA = +25°C, Differential Gain = +2V/V, and RL = 500Ω, unless otherwise noted.
PAGE 17
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 TYPICAL CHARACTERISTICS: VS = +3.3V At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 0.75V, unless otherwise noted (see Figure 62). SMALL-SIGNAL FREQUENCY RESPONSE 3 LARGE-SIGNAL FREQUENCY RESPONSE 3 VO = 0.2VPP RL = 150Ω 0 0 VO = 1VPP, VO = 0.
PAGE 18
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com TYPICAL CHARACTERISTICS: VS = +3.3V (continued) At TA = +25°C, G = +2V/V, and RL = 150Ω to VCM = 0.75V, unless otherwise noted (see Figure 62).
PAGE 19
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 TYPICAL CHARACTERISTICS: VS = +3.3V (Differential) At TA = +25°C, Differential Gain = +2V/V, and RL = 500Ω, unless otherwise noted. DIFFERENTIAL PERFORMANCE TEST CIRCUIT SMALL-SIGNAL FREQUENCY RESPONSE 9 +3.3V 6 1/2 OPA2832 3 Gain (dB) 400Ω 400Ω RL VI 400Ω VO 0 −3 400Ω G = +2V/V VO = 0.
PAGE 20
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com APPLICATIONS INFORMATION WIDEBAND VOLTAGE-FEEDBACK OPERATION The OPA2832 is a unity-gain stable, very high-speed voltage-feedback op amp designed for single-supply operation (+3V to +11V). The input stage supports input voltages below ground and to within 1.7V of the positive supply.
PAGE 21
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 SINGLE-SUPPLY ACTIVE FILTER 0.1µF 6.8µF + 50Ω Source 175Ω VIN VO 1/2 OPA2832 50Ω 150Ω 0.01µF 400Ω 400Ω + 6.8µF 0.1µF −5V Figure 63.
PAGE 22
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com +5V 470pF 3kΩ 0.1µF 205Ω 866Ω VI 1/2 OPA2832 300pF 2kΩ 2V I 400Ω 1MHz, 2nd−Order Butterworth Filter 400Ω 0.1µF Figure 66. Single-Supply, High-Frequency Active Filter DIFFERENTIAL LOW-PASS FILTERS The dual OPA2832 offers an easy means to implement low-power differential active filters.
PAGE 23
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 Implementing the DC bias in this way also attenuates the differential signal by half. This is recovered by setting the amplifier gain at 2V/V to get a net unity-gain filter characteristic from input to output.
PAGE 24
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com DESIGN-IN TOOLS DEMONSTRATION FIXTURES Two printed circuit boards (PCBs) are available to assist in the initial evaluation of circuit performance using the OPA2832 in its two package options. Both of these are offered free of charge as unpopulated PCBs, delivered with a user's guide.
PAGE 25
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 DISTORTION PERFORMANCE The OPA2832 provides good distortion performance into a 150Ω load. Relative to alternative solutions, it provides exceptional performance into lighter loads and/or operating on a single +3.3V supply.
PAGE 26
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com A fine-scale output offset null, or DC operating point adjustment, is often required. Numerous techniques are available for introducing DC offset control into an op amp circuit. Most of these techniques are based on adding a DC current through the feedback resistor.
PAGE 27
OPA2832 www.ti.com ............................................................................................................................................. SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 d) Connections to other wideband devices on the board may be made with short direct traces or through onboard transmission lines. For short connections, consider the trace and the input to the next device as a lumped capacitive load.
PAGE 28
OPA2832 SBOS327C – FEBRUARY 2005 – REVISED AUGUST 2008 ............................................................................................................................................. www.ti.com Revision History Changes from Revision B (May 2006) to Revision C ...................................................................................................... Page • Changed rating for storage voltage range in Absolute Maximum Ratings table from –40°C to +125°C to –65°C to +125°C ...........
PAGE 29
PACKAGE OPTION ADDENDUM www.ti.
PAGE 30
PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line.
PAGE 31
PACKAGE MATERIALS INFORMATION www.ti.com 17-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant OPA2832IDGKT VSSOP DGK 8 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 OPA2832IDR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.
PAGE 32
PACKAGE MATERIALS INFORMATION www.ti.com 17-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA2832IDGKT VSSOP DGK OPA2832IDR SOIC D 8 250 210.0 185.0 35.0 8 2500 367.0 367.0 35.
PAGE 33
PAGE 34
PAGE 35
PAGE 36
PAGE 37
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.