Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Voltage feedback SSOP 16

1/3

OPA3690

1/3

OPA3690

OUT

49.9W 49.9W

75.0W

49.9W

75.0W

249W

1pF

330pF

1/3

OPA3690

249W

1pF

OPA3690

www.ti.com

SBOS237G –MARCH 2002–REVISED MARCH 2010

Triple, Wideband, Voltage-Feedback

OPERATIONAL AMPLIFIER with Disable

Check for Samples: OPA3690

FEATURES

DESCRIPTION

• FLEXIBLE SUPPLY RANGE:

The OPA3690 represents a major step forward in

+5V to +12V Single Supply

unity-gain stable, voltage-feedback op amps. A new

±2.5V to ±6V Dual Supply

internal architecture provides slew rate and full-power

bandwidth previously found only in wideband,

• WIDEBAND +5V OPERATION: 220MHz (G = 2)

current-feedback op amps. A new output stage

• HIGH OUTPUT CURRENT: 190mA

architecture delivers high currents with a minimal

• OUTPUT VOLTAGE SWING: ±4.0V

headroom requirement. These give exceptional

single-supply operation. Using a single +5V supply,

• HIGH SLEW RATE: 1800V/ms

the OPA3690 can deliver a 1V to 4V output swing

• LOW SUPPLY CURRENT: 5.5mA/ch

with over 120mA drive current and 150MHz

• LOW DISABLE CURRENT: 100mA/ch

bandwidth. This combination of features makes the

OPA3690 an ideal RGB line driver or single-supply

APPLICATIONS

Analog-to-Digital Converter (ADC) input driver.

• VIDEO LINE DRIVING

The low 5.5mA/ch supply current of the OPA3690 is

• HIGH-SPEED IMAGING CHANNELS

precisely trimmed at +25°C. This trim, along with low

temperature drift, provides lower maximum supply

• ADC BUFFERS

current than competing products. System power may

• PORTABLE INSTRUMENTS

be reduced further using the optional disable control

• TRANSIMPEDANCE AMPLIFIERS

pin. Leaving this disable pin open, or holding it HIGH,

• ACTIVE FILTERS

will operate the OPA3690 normally. If pulled LOW,

the OPA3690 supply current drops to less than

200mA/ch while the output goes to a high-impedance

state. This feature may be used for power savings.

OPA3690 RELATED PRODUCTS

SINGLES DUALS TRIPLES

Voltage-Feedback OPA690 OPA2690 —

Current-Feedback OPA691 OPA2691 OPA3691

Fixed Gain OPA692 — OPA3692

Buffered Analog Delay Line

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.

2All trademarks are the property of their respective owners.

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.

Summary of content (39 pages)

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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 Triple, Wideband, Voltage-Feedback OPERATIONAL AMPLIFIER with Disable Check for Samples: OPA3690 FEATURES DESCRIPTION • The OPA3690 represents a major step forward in unity-gain stable, voltage-feedback op amps. A new internal architecture provides slew rate and full-power bandwidth previously found only in wideband, current-feedback op amps. A new output stage architecture delivers high currents with a minimal headroom requirement.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 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. ESD damage can range from subtle performance degradation to complete device failure.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 ELECTRICAL CHARACTERISTICS: VS = ±5V Boldface limits are tested at +25°C. At RF = 402Ω for G = +2, (see Figure 36 for ac performance only), RF = 25Ω for G = +1, and RL = 100Ω, unless otherwise noted. OPA3690ID, IDBQ MIN/MAX OVER TEMPERATURE TYP +25°C (2) 0°C to +70°C (3) -40°C to +85°C (3) MIN/ MAX TEST LEVELS (1) 220 165 160 150 MHz typ C MHz min G = +10, VO = 0.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±5V (continued) Boldface limits are tested at +25°C. At RF = 402Ω for G = +2, (see Figure 36 for ac performance only), RF = 25Ω for G = +1, and RL = 100Ω, unless otherwise noted. OPA3690ID, IDBQ MIN/MAX OVER TEMPERATURE TYP PARAMETER TEST CONDITIONS +25°C +25°C (2) 0°C to +70°C (3) -40°C to +85°C (3) UNIT MIN/ MAX TEST LEVELS (1) OUTPUT Voltage Output Swing No Load ±4.0 ±3.8 ±3.7 ±3.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 ELECTRICAL CHARACTERISTICS: VS = +5V Boldface limits are tested at +25°C. At RF = 402Ω for G = +2 (see Figure 37 for ac performance only), RF = 25Ω for G = +1, and RL = 100Ω to VS/2, unless otherwise noted. OPA3690ID, IDBQ MIN/MAX OVER TEMPERATURE TYP +25°C (2) 0°C to +70°C (3) -40°C to +85°C (3) MIN/ MAX TEST LEVELS (1) 190 150 145 140 MHz typ C MHz min G = +10, VO < 0.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com ELECTRICAL CHARACTERISTICS: VS = +5V (continued) Boldface limits are tested at +25°C. At RF = 402Ω for G = +2 (see Figure 37 for ac performance only), RF = 25Ω for G = +1, and RL = 100Ω to VS/2, unless otherwise noted. OPA3690ID, IDBQ MIN/MAX OVER TEMPERATURE TYP PARAMETER TEST CONDITIONS +25°C +25°C (2) 0°C to +70°C (3) -40°C to +85°C (3) UNIT MIN/ MAX TEST LEVELS (1) OUTPUT Most Positive Output Voltage No Load 4 3.8 3.6 3.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 TYPICAL CHARACTERISTICS: VS = ±5V At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 36 for ac performance only), unless otherwise noted. SMALL−SIGNAL FREQUENCY RESPONSE LARGE−SIGNAL FREQUENCY RESPONSE 9 6 VO = 0.5VPP G = +1 RF = 25W 3 G=5 Gain (3dB/div) Normalized Gain (dB) 6 VO = 2VPP 0 G=2 -3 -6 G = 10 3 VO = 1VPP 0 VO = 4VPP -9 -3 -12 VO = 7VPP -6 0.5 -15 0.7 1 10 700 100 1 Frequency (MHz) Figure 1. Figure 2.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com TYPICAL CHARACTERISTICS: VS = ±5V (continued) At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 36 for ac performance only), unless otherwise noted.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 TYPICAL CHARACTERISTICS: VS = ±5V (continued) At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 36 for ac performance only), unless otherwise noted. INPUT VOLTAGE AND CURRENT NOISE DENSITY TWO-TONE, 3RD-ORDER INTERMODULATION SPURIOUS -30 3rd-Order Spurious Level (dBc) Voltage Noise (nV/ÖHz) Current Noise (pA/ÖHz) 100 10 Voltage Noise 5.5nV/ÖHz Current Noise 3.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com TYPICAL CHARACTERISTICS: VS = ±5V (continued) At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 36 for ac performance only), unless otherwise noted. OUTPUT VOLTAGE AND CURRENT LIMITATIONS 1.5 1 0 25W Load Line 50W Load Line -1 -2 100W Load Line -3 -4 1W Internal Power Limit One Channel Only Output Current Limit -5 -300 -200 0 -100 100 200 Input Bias Current (IB) 1.0 0.5 Input Offset Current (IOS) 0 0 -0.5 -1.0 -1.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 TYPICAL CHARACTERISTICS: VS = ±5V (continued) At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 36 for ac performance only), unless otherwise noted. 5 10 4 8 3 6 2 4 1 2 Output Voltage 0 0 -1 -2 -2 -4 -3 Input Voltage -4 Output Voltage (V) Input Voltage (V) NONINVERTING OVERDRIVE RECOVERY -6 -8 -5 -10 Time (10ns/div) Figure 25.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com TYPICAL CHARACTERISTICS: +5V At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 37 for ac performance only), unless otherwise noted. SMALL−SIGNAL FREQUENCY RESPONSE LARGE−SIGNAL FREQUENCY RESPONSE 6 9 VO = 0.5VPP 3 6 VO = 3VPP G = +2 Gain (dB) Normalized Gain (dB) VO = 2VPP G = +1 RF = 25W 0 G = +5 -3 3 VO = 1VPP 0 G = +10 -6 -3 -9 -6 0.7 1 100 10 700 0.5 1 Figure 26. Figure 27.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 TYPICAL CHARACTERISTICS: +5V (continued) At TA = +25°C, G = +2, RF = 402Ω, and RL = 100Ω (see Figure 37 for ac performance only), unless otherwise noted. HARMONIC DISTORTION vs LOAD RESISTANCE -40 VO = 2VPP f = 5MHz Harmonic Distortion (dBc) Harmonic Distortion (dBc) -60 HARMONIC DISTORTION vs FREQUENCY -65 -70 2nd-Harmonic 3rd-Harmonic -75 -50 VO = 2VPP RL = 100W to 2.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com APPLICATION INFORMATION WIDEBAND VOLTAGE-FEEDBACK OPERATION The OPA3690 provides an exceptional combination of high output power capability in a wideband, unity-gain stable voltage-feedback op amp using a new high slew rate input stage. Typical differential input stages used for voltage feedback op amps are designed to steer a fixed-bias current to the compensation capacitor, setting a limit to the achievable slew rate.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 Again, an additional resistor (50Ω in this case) is included directly in series with the noninverting input. This minimum recommended value provides part of the dc source resistance matching for the noninverting input bias current. It is also used to form a simple parasitic pole to roll off the frequency response at very high frequencies ( > 500MHz) using the input parasitic capacitance to form a bandlimiting pole.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com ANALOG DELAY LINE The circuit on the front page of this data sheet shows an analog delay line using the OPA3690. The first op amp buffers the delay line from the source, and can be used to establish the dc operating point if single +5V supply operation is desired. The last two sections provide an analog delay function given by Equation 1: 2t Delay = , for each section. 1 + (2pft)2 (1) Where: t = RC.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 BUFFERED 2 x 1 MULTIPLEXER OPA3690 can be adapted to single +5V as well, using the techniques described for Figure 37. The signal flowthrough pinout for the OPA3690 allows a higher signal fidelity through higher frequencies due to the simplified PCB layout requirements.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com swP S2(a) + (b - c) + wP2(d) VOUT QP =sw VIN S2 + P + wP2 QP 1 where wP = RC WIDEBAND INTEGRATOR The three unity-gain stable, voltage-feedback amplifiers in the OPA3690 may be used to develop an exceptional integrator function, as shown in Figure 45.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 DESIGN-IN TOOLS DEMONSTRATION FIXTURES MACROMODELS Two printed circuit boards (PCBs) are available to assist in the initial evaluation of circuit performance using the OPA3690 in its two package options. Both of these are offered free of charge as unpopulated PCBs, delivered with a user’s guide. The summary information for these fixtures is shown in Table 1.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com OPERATING SUGGESTIONS OPTIMIZING RESISTOR VALUES Since the the OPA3690 is a unity-gain stable, voltage-feedback op amp, a wide range of resistor values may be used for the feedback and gain setting resistors. The primary limits on these values are set by dynamic range (noise and distortion) and parasitic capacitance considerations.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 INVERTING AMPLIFIER OPERATION Since the OPA3690 is a general-purpose, wideband voltage-feedback op amp, all of the familiar op amp application circuits are available to the designer. Inverting operation is one of the more common requirements and offers several performance benefits. Figure 47 shows a typical inverting configuration where the I/O impedances and signal gain from Figure 36 are retained in an inverting circuit configuration.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com OUTPUT CURRENT AND VOLTAGE DRIVING CAPACITIVE LOADS The OPA3690 provides output voltage and current capabilities that are unsurpassed in a low-cost monolithic op amp. Under no-load conditions at +25°C, the output voltage typically swings closer than 1V to either supply rail; the specified swing limit is within 1.2V of either rail. Into a 15Ω load (the minimum tested load), it will deliver more than ±160mA.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 DISTORTION PERFORMANCE +5V 50W 175W 50W RNG Power-supply decoupling not shown. RS 1/3 OPA3690 VO CL 402W 402W -5V Figure 48. Capacitive Load Driving with Noise Gain Tuning This gain of +2 circuit includes a noise gain tuning resistor across the two inputs to increase the noise gain, increasing the unloaded phase margin for the op amp.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com NOISE PERFORMANCE High slew rate, unity-gain stable, voltage-feedback op amps usually achieve their slew rate at the expense of a higher input noise voltage. The 5.5nV/√Hz input voltage noise for the OPA3690 is, however, much lower than comparable amplifiers. The input-referred voltage noise, and the two input-referred current noise terms, combine to give low output noise under a wide variety of operating conditions.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 DC ACCURACY AND OFFSET CONTROL The balanced input stage of a wideband voltage-feedback op amp allows good output dc accuracy in a wide variety of applications. The power-supply current trim for the OPA3690 gives even tighter control than comparable amplifiers.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com DISABLE OPERATION The OPA3690 provides an optional disable feature on each channel that may be used either to reduce system power or to implement a simple channel multiplexing operation. If the DIS control pin is left unconnected, the OPA3690 will operate normally. To disable, the control pin must be asserted LOW. Figure 52 shows a simplified internal circuit for the disable control feature available on each channel.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 THERMAL ANALYSIS Due to the high output power capability of the OPA3690, heatsinking or forced airflow may be required under extreme operating conditions. Maximum desired junction temperature will set the maximum allowed internal power dissipation as described below. In no case should the maximum junction temperature be allowed to exceed 175°C.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com BOARD LAYOUT GUIDELINES Achieving optimum performance with a high-frequency amplifier like the OPA3690 requires careful attention to board layout parasitics and external component types. Recommendations that will optimize performance include: a. Minimize parasitic capacitance to any ac ground for all of the signal I/O pins.
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OPA3690 www.ti.com SBOS237G – MARCH 2002 – REVISED MARCH 2010 current capability of the OPA3690 allows multiple destination devices to be handled as separate transmission lines, each with their own series and shunt terminations. If the 6dB attenuation of a doubly-terminated transmission line is unacceptable, a long trace can be series-terminated at the source end only.
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OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 www.ti.com REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision F (August 2008) to Revision G Page • Changed data sheet format to current standards ................................................................................................................. 1 • Deleted Lead Temperature specification from Absolute Maximum Ratings table ................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com (4) 24-Jan-2013 Only one of markings shown within the brackets will appear on the physical device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing OPA3690IDBQR SSOP DBQ 16 OPA3690IDBQT SSOP DBQ OPA3690IDR SOIC D SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 5.2 2.1 8.0 12.0 Q1 2500 330.0 12.4 6.4 16 250 180.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA3690IDBQR SSOP DBQ 16 2500 367.0 367.0 35.0 OPA3690IDBQT SSOP DBQ 16 250 210.0 185.0 35.0 OPA3690IDR SOIC D 16 2500 367.0 367.0 38.
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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.