The OPA3690 represents a major step forward in unity-gain stable, voltage-feedback op amps

OPA3690

Manufacturer Part NumberOPA3690
DescriptionThe OPA3690 represents a major step forward in unity-gain stable, voltage-feedback op amps
ManufacturerTexas Instruments
OPA3690 datasheet
 


Specifications of OPA3690

Number Of Channels3Bw @ Acl(mhz)500
Acl, Min Stable Gain(v/v)1Slew Rate(typ)(v/us)1800
Settling Time (0.1%)(typ)(ns)8Vn At Flatband(typ)(nv/rthz)5.5
Vs(min)(v)5Vs(max)(v)12
Iq Per Channel(max)(ma)6.3Io(typ)(ma)190
2nd Harmonic(dbc)773rd Harmonic(dbc)81
@ Mhz5Thd (fc=1 Mhz)(typ)(db)-80
Diff Gain(%)0.06Diff Phase(deg)0.03
Vio(max)(mv)4.5Offset Voltage Drift (+/-)(max)(uv/degrees Celsius)12
Iib(max)(na)12000Operating Temperature Range(c)-40 to 85
Pin/package16SOIC, 16SSOP/QSOP  
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OPERATIONAL AMPLIFIER with Disable
FEATURES
1
FLEXIBLE SUPPLY RANGE:
2
+5V to +12V Single Supply
±2.5V to ±6V Dual Supply
WIDEBAND +5V OPERATION: 220MHz (G = 2)
HIGH OUTPUT CURRENT: 190mA
OUTPUT VOLTAGE SWING: ±4.0V
HIGH SLEW RATE: 1800V/ms
LOW SUPPLY CURRENT: 5.5mA/ch
LOW DISABLE CURRENT: 100mA/ch
APPLICATIONS
VIDEO LINE DRIVING
HIGH-SPEED IMAGING CHANNELS
ADC BUFFERS
PORTABLE INSTRUMENTS
TRANSIMPEDANCE AMPLIFIERS
ACTIVE FILTERS
49.9W
V
IN
1/3
OPA3690
49.9W
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.
All trademarks are the property of their respective owners.
2
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.
Triple, Wideband, Voltage-Feedback
Check for Samples:
OPA3690
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
single-supply operation. Using a single +5V supply,
the OPA3690 can deliver a 1V to 4V output swing
with
over
bandwidth. This combination of features makes the
OPA3690 an ideal RGB line driver or single-supply
Analog-to-Digital Converter (ADC) input driver.
The low 5.5mA/ch supply current of the OPA3690 is
precisely trimmed at +25°C. This trim, along with low
temperature drift, provides lower maximum supply
current than competing products. System power may
be reduced further using the optional disable control
pin. Leaving this disable pin open, or holding it HIGH,
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.
Voltage-Feedback
Current-Feedback
Fixed Gain
Buffered Analog Delay Line
1pF
249W
249W
R
1/3
49.9W
75.0W
OPA3690
75.0W
C
330pF
SBOS237G – MARCH 2002 – REVISED MARCH 2010
requirement.
These
give exceptional
120mA
drive
current
and
OPA3690 RELATED PRODUCTS
SINGLES
DUALS
OPA690
OPA2690
OPA691
OPA2691
OPA692
1pF
249W
249W
V
OUT
R
1/3
49.9W
OPA3690
C
330pF
Copyright © 2002–2010, Texas Instruments Incorporated
OPA3690
150MHz
TRIPLES
OPA3691
OPA3692

OPA3690 Summary of contents

  • Page 1

    ... A new output stage architecture delivers high currents with a minimal headroom single-supply operation. Using a single +5V supply, the OPA3690 can deliver output swing with over bandwidth. This combination of features makes the OPA3690 an ideal RGB line driver or single-supply Analog-to-Digital Converter (ADC) input driver ...

  • Page 2

    ... OUT + Product Folder Link(s): OPA3690 www.ti.com ORDERING TRANSPORT NUMBER MEDIA, QUANTITY OPA3690ID Rails, 48 OPA3690IDR Tape and Reel, 2500 OPA3690IDBQT Tape and Reel, 250 OPA3690IDBQR Tape and Reel, 2500 OPA3690 UNIT ±6 See Thermal Analysis section ±1.2 V ± ...

  • Page 3

    ... V = ± 190 || 0.6 3.2 || 0.9 is the input common-mode voltage. CM Product Folder Link(s): OPA3690 OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 = 100Ω, unless otherwise L OPA3690ID, IDBQ 0°C to -40°C to MIN/ TEST (3) (3) +70°C +85°C UNIT MAX LEVELS MHz typ 160 150 ...

  • Page 4

    ... V = ±5V 16.5 17 ±5V 16.5 15.9 S Input-Referred 75 68 –40 to +85 100 100 Product Folder Link(s): OPA3690 www.ti.com = 100Ω, unless otherwise L OPA3690ID, IDBQ 0°C to -40°C to MIN/ TEST (3) (3) +70°C +85°C UNIT MAX LEVELS ±3.7 ±3.6 V min ±3.6 ±3.3 V min +140 +100 ...

  • Page 5

    ... 1.4 2.2 || 1.5 is the input common-mode voltage. CM Product Folder Link(s): OPA3690 OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 = 100Ω /2, unless L S OPA3690ID, IDBQ MIN/MAX OVER 0°C to -40°C to MIN/ (3) (3) +70°C +85°C UNIT MAX LEVELS MHz typ 145 ...

  • Page 6

    ... Each Channel 75 130 +5V 14.7 16. +5V 14.7 13.44 S Input-Referred 72 –40 to +85 100 100 Product Folder Link(s): OPA3690 www.ti.com = 100Ω /2, unless L S OPA3690ID, IDBQ MIN/MAX OVER 0°C to -40°C to MIN/ (3) (3) +70°C +85°C UNIT MAX LEVELS 3.6 3.5 V min 3.5 3.4 V min 1.4 1.5 V min 1.5 1.7 V ...

  • Page 7

    ... No Pull- Down -35 With 1.3k Pull-Down W -40 -45 -50 -55 -60 -65 -70 -75 -80 -85 -90 - 0.1 Product Folder Link(s): OPA3690 OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 = ±5V LARGE−SIGNAL FREQUENCY RESPONSE 100 500 Frequency (MHz) Figure 2 ...

  • Page 8

    ... 100W 5MHz - 1kW F -60 2nd-Harmonic -70 - Product Folder Link(s): OPA3690 www.ti.com vs SUPPLY VOLTAGE PP 3.0 3.5 4.0 4.5 5.0 5.5 6.0 Supply Voltage (± Figure 8. HARMONIC DISTORTION vs OUTPUT VOLTAGE W 2nd-Harmonic 3rd-Harmonic 1 Output Voltage Swing ( Figure 10. HARMONIC DISTORTION vs INVERTING GAIN ...

  • Page 9

    ... Reverse -80 -85 -90 -95 100k Product Folder Link(s): OPA3690 OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 TWO-TONE, 3RD-ORDER INTERMODULATION SPURIOUS Load Power at Matched 50 Load, W see Figure Single-Tone Load Power (dBm) Figure 14. ...

  • Page 10

    ... CMRR 16 +PSRR 10M 100M -50 - -10 -20 10M 100M 1k 10k Product Folder Link(s): OPA3690 www.ti.com TYPICAL DC DRIFT OVER TEMPERATURE -10 - 100 125 Ambient Temperature ( C) ° Figure 20. vs TEMPERATURE 250 200 150 100 ...

  • Page 11

    ... Copyright © 2002–2010, Texas Instruments Incorporated = ±5V (continued 100Ω (see Figure 36 for ac performance only), unless otherwise noted. L NONINVERTING OVERDRIVE RECOVERY Output Voltage Input Voltage Time (10ns/div) Figure 25. Product Folder Link(s): OPA3690 OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 ...

  • Page 12

    ... Frequency (MHz) Figure 27. LARGE-SIGNAL PULSE RESPONSE Time (5ns/div) Figure 29. FREQUENCY RESPONSE vs CAPACITIVE LOAD +5V 714W 1/3 OUT 714W 714W OPA3690 C L +5V 402W 402W 100 120 140 160 180 200 Frequency (20MHz/div) Figure 31. Copyright © 2002–2010, Texas Instruments Incorporated ...

  • Page 13

    ... INTERMODULATION SPURIOUS -30 -35 -40 -45 -50 -55 -60 -65 -70 - -14 -12 PP Product Folder Link(s): OPA3690 OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 HARMONIC DISTORTION vs FREQUENCY PP 2nd-Harmonic 3rd-Harmonic Frequency (MHz) Figure 33. TWO-TONE, 3RD-ORDER Load Power at Matched 50 Load, see Figure ...

  • Page 14

    ... The OPA3690 uses a new input stage that places the transconductance element between two input buffers, using their output currents as the forward signal. As the error voltage increases ...

  • Page 15

    ... The new output stage circuit used in the OPA3690 can deliver large bipolar output currents into this midpoint load with minimal crossover distortion, as shown in the ±5V supply harmonic distortion plots. ...

  • Page 16

    ... 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 ...

  • Page 17

    ... BUFFERED MULTIPLEXER Using two of the three channels in an OPA3690 to select one of two possible input signals, then using the 3rd to isolate the summing point and drive the load, will give a very flexible, wideband, multiplexing capability. See Figure 44 for one example of this where the two input stages have been set up for a gain of +2 ...

  • Page 18

    ... Figure 43. This circuit can deliver a 90° phase shift over a five-decade frequency span. STATE VARIABLE FILTER Figure 46 shows a state variable filter using the OPA3690. This active filter is quite useful for high Q filter responses, and will produce high-pass, bandpass, notch, and all-pass functions. ...

  • Page 19

    ... DEMONSTRATION FIXTURES 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 ...

  • Page 20

    ... OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 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 ...

  • Page 21

    ... 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 benefits. Figure 47 shows a typical inverting configuration where the I/O impedances and signal ...

  • Page 22

    ... In The criterion for setting this R bandwidth, flat frequency response at the load. For the OPA3690 operating in a gain of +2, the frequency response at the output pin is already slightly peaked without the capacitive load requiring relatively high values Increasing the noise gain will reduce the peaking as described previously ...

  • Page 23

    ... In most op amps, increasing the output voltage swing increases intermodulation distortion directly. The new output stage used in the OPA3690 actually holds the difference between fundamental power and the 3rd-order intermodulation powers relatively constant with increasing output power until very large output swings are required ( > ...

  • Page 24

    ... 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 ...

  • Page 25

    ... The power-supply current trim for the OPA3690 gives even tighter control than comparable amplifiers. Although the high-speed input stage does require relatively high input bias current (typically 5mA out of each input terminal), the close matching between them may be used to reduce the output dc error caused by this current ...

  • Page 26

    ... OPA3690 SBOS237G – MARCH 2002 – REVISED MARCH 2010 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 ...

  • Page 27

    ... THERMAL ANALYSIS Due to the high output power capability of the OPA3690, heatsinking or forced airflow may be required under extreme operating Maximum desired junction temperature will set the maximum allowed internal power dissipation as described below case should the maximum junction temperature be allowed to exceed 175°C. ...

  • Page 28

    ... With impedance defined (based on board material and trace dimensions), a matching series resistor into the trace from the output of the OPA3690 is used as well as a terminating shunt resistor at the input of the destination device. Remember also that the terminating impedance mounting is combination of the shunt resistor and the input impedance of the destination device ...

  • Page 29

    ... Copyright © 2002–2010, Texas Instruments Incorporated SBOS237G – MARCH 2002 – REVISED MARCH 2010 INPUT AND ESD PROTECTION The OPA3690 is built using a very high-speed complementary bipolar process. The internal junction breakdown voltages are relatively low for these very line is small geometry devices ...

  • Page 30

    ... Changed unit in equation from 250W to 250Ω Accuracy and Offset Control section .............................................. Changes from Revision E (June 2006) to Revision F • Changed Storage Temperature minimum value from −40°C to −65°C ................................................................................ 30 Submit Documentation Feedback REVISION HISTORY Copyright © 2002–2010, Texas Instruments Incorporated Product Folder Link(s): OPA3690 www.ti.com Page ...

  • Page 31

    ... ACTIVE OPA3690IDBQR ACTIVE OPA3690IDBQRG4 ACTIVE OPA3690IDBQT ACTIVE OPA3690IDBQTG4 ACTIVE OPA3690IDG4 ACTIVE OPA3690IDR ACTIVE OPA3690IDRG4 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 OPA3690IDBQR SSOP/ DBQ QSOP OPA3690IDBQT SSOP/ DBQ QSOP OPA3690IDR SOIC PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel Diameter Width (mm) W1 (mm) 16 2500 330.0 12.4 16 250 180.0 12 2500 330 ...

  • Page 33

    ... Device Package Type OPA3690IDBQR SSOP/QSOP OPA3690IDBQT SSOP/QSOP OPA3690IDR SOIC PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DBQ 16 2500 DBQ 16 250 D 16 2500 Pack Materials-Page 2 17-Dec-2011 Width (mm) Height (mm) 346.0 346.0 29.0 210.0 185.0 35.0 346.0 346.0 33.0 ...

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  • Page 38

    ... 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’ ...