The OPA3693 provides an easy to use, broadband, triple, fixed-gain buffer amplifier

OPA3693

Manufacturer Part NumberOPA3693
DescriptionThe OPA3693 provides an easy to use, broadband, triple, fixed-gain buffer amplifier
ManufacturerTexas Instruments
OPA3693 datasheet
 


Specifications of OPA3693

Number Of Channels3Bw @ Acl(mhz)1400
Acl, Min Stable Gain(v/v)1Slew Rate(typ)(v/us)2500
Settling Time (0.1%)(typ)(ns)12Vn At Flatband(typ)(nv/rthz)1.8
Vs(min)(v)+/-2.2Vs(max)(v)+/-6
Iq Per Channel(max)(ma)11Io(typ)(ma)100
2nd Harmonic(dbc)693rd Harmonic(dbc)83
@ Mhz10Thd (fc=1 Mhz)(typ)(db)-82
Diff Gain(%)0.03Diff Phase(deg)0.01
Vio(max)(mv)3.5Offset Voltage Drift (+/-)(max)(uv/degrees Celsius)9
Iib(max)(na)35000Pin/package16SSOP/QSOP
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............................................................................................................................................
FEATURES
1
650MHz BANDWIDTH (G = +2)
2
FIXED GAIN OF ±1 or +2
OUTPUT VOLTAGE SWING: ±4.1V
ULTRA-HIGH SLEW RATE: 2500V/ s
3RD-ORDER INTERCEPT: > 40dBm
(f < 50MHz)
LOW POWER: 130mW/channel
LOW DISABLED POWER: 0.4mW/channel
APPLICATIONS
MULTIPLE LINE VIDEO DISTRIBUTION
AMPLIFIER (DA)
PORTABLE INSTRUMENTS
BROADBAND VIDEO LINE DRIVERS
ADC BUFFERS
HIGH-FREQUENCY ACTIVE FILTERS
V
R
1/3
OPA3693
75W
300W
300W
V
G
1/3
OPA3693
75W
300W
300W
V
B
1/3
OPA3693
75W
300W
300W
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, Ultra-Wideband, Fixed-Gain,
VIDEO BUFFER with Disable
DESCRIPTION
The OPA3693 provides an easy to use, broadband,
triple, fixed-gain buffer amplifier. Depending on the
external connections, the internal resistor network
may be used to provide either a fixed gain of +2
video buffer or a gain of +1 or –1 voltage buffer. The
OPA3693 offers
bandwidth (> 800MHz) normally associated with a
much higher supply current. A new output stage
architecture delivers high output current with a
minimal headroom and crossover distortion. This
combination of features makes the OPA3693 an ideal
RGB line driver or single-supply undersampling
analog-to-digital converter (ADC) input driver.
The OPA3693 13mA/channel supply current is
precisely trimmed at +25°C. This trim, along with a
low temperature drift, gives lower system power over
temperature. System power can be further reduced
using the optional disable control pin. Leaving this pin
open, or holding it HIGH, gives normal operation. If
pulled LOW, the OPA3693 supply current drops to
less than 130 A/channel. This power-saving feature,
75W
75
Cable
W
along with exceptional single +5V operation, make
the OPA3693 ideal for portable applications. The
RG-59
OPA3693 is available in an SSOP-16 package.
OPA3693 RELATED PRODUCTS
FEATURE
75W
75 Cable
W
Voltage
Feedback
RG-59
Current
Feedback
Fixed Gain
Fixed Gain
75W
75 Cable
W
>900MHz
RG-59
OPA3693
SBOS353A – DECEMBER 2006 – REVISED AUGUST 2008
a slew rate
(2500V/ s)
SINGLES
DUALS
TRIPLES
OPA690
OPA2690
OPA3690
OPA691
OPA2691
OPA3691
OPA692
OPA3692
OPA693
OPA695
OPA2695
OPA3695
Copyright © 2006–2008, Texas Instruments Incorporated
and

OPA3693 Summary of contents

  • Page 1

    ... System power can be further reduced using the optional disable control pin. Leaving this pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA3693 supply current drops to less than 130 A/channel. This power-saving feature, 75W 75 ...

  • Page 2

    ... OUT Product Folder Link(s): OPA3693 www.ti.com ORDERING TRANSPORT MEDIA, NUMBER QUANTITY OPA3693IDBQ Rail, 75 OPA3693IDBQR Tape and Reel, 2500 ±6.5V See Thermal Analysis ±1.2V –65°C to +125°C +300°C +150°C +140°C 1500V 1000V SSOP ...

  • Page 3

    ... +15 ± ±20 ± Product Folder Link(s): OPA3693 OPA3693 OPA3693IDBQ MIN/MAX OVER TEMPERATURE TEST 0°C to –40°C to MIN/ LEVEL (3) (3) (1) +70°C +85°C UNITS MAX MHz typ C 480 470 MHz min B 480 470 ...

  • Page 4

    ... V = ± ±5V 39 37.5 S Input-Referred, f < 100kHz 62 52 –40 to +85 Junction-to-Ambient 80 Product Folder Link(s): OPA3693 www.ti.com OPA3693IDBQ MIN/MAX OVER TEMPERATURE TEST 0°C to –40°C to MIN/ LEVEL (2) (3) (3) +70°C +85°C UNITS MAX ±3.2 ±3.2 V min kΩ typ ± ...

  • Page 5

    ... ±20 ± Product Folder Link(s): OPA3693 OPA3693 OPA3693IDBQ MIN/MAX OVER TEMPERATURE TEST 0°C to –40°C to MIN/ LEVEL (3) (3) (1) +70°C +85°C UNITS MAX MHz typ C 390 380 MHz min B C 100 ...

  • Page 6

    ... Each Channel 75 130 DIS 5 +3.5 + +5V 34.5 36 +5V 34 Input-Referred 53 –40 to +85 Junction-to-Ambient 80 Product Folder Link(s): OPA3693 www.ti.com OPA3693IDBQ MIN/MAX OVER TEMPERATURE TEST 0°C to –40°C to MIN/ LEVEL (3) (3) (1) +70°C +85°C UNITS MAX 1.8 1.8 V max B 3.2 3.2 V min B kΩ ...

  • Page 7

    ... L 0. 100W L 0 -0.25 -0.50 -0.75 -1.00 400 500 Product Folder Link(s): OPA3693 OPA3693 SBOS353A – DECEMBER 2006 – REVISED AUGUST 2008 NONINVERTING LARGE-SIGNAL FREQUENCY RESPONSE 200 300 400 500 600 700 800 Frequency (MHz) Figure 2 ...

  • Page 8

    ... –1 HARMONIC DISTORTION vs FREQUENCY - 1V 100 - 2nd-Harmonic -75 -80 3rd-Harmonic -85 -90 -95 -100 10 50 0.1 Product Folder Link(s): OPA3693 www.ti.com 10MHz HARMONIC DISTORTION vs SUPPLY VOLTAGE PP 2nd-Harmonic 3rd-Harmonic 3.0 3.5 4.0 4.5 5.0 5.5 Supply Voltage (±V) Figure 2nd-Harmonic 3rd-Harmonic 1 10 Frequency (MHz) Figure 10. - ...

  • Page 9

    ... See Figure 36 See Figure 42 -100 Product Folder Link(s): OPA3693 OPA3693 SBOS353A – DECEMBER 2006 – REVISED AUGUST 2008 Inverting Current Noise (internal) 22pA/ÖHz Noninverting Current Noise 17.8pA/ÖHz Voltage Noise 1.8nV/ÖHz 1k 10k 100k 1M Frequency (MHz) Figure 14 ...

  • Page 10

    ... INVERTING OVERDRIVE RECOVERY 100W Input See Figure 42 -6 Product Folder Link(s): OPA3693 www.ti.com +5V 1/3 OPA3693 Z O -5V 300W 300W 100k 1M 10M 100M Frequency (Hz) Figure 20. 140 Left Scale 135 130 Sourcing Output Current Right Scale 125 120 Sinking Output Current ...

  • Page 11

    ... OUTPUT RETURN LOSS vs FREQUENCY (S22 See Figure 42 -10 -20 without Trim Capacitor -30 - See Figure 42 -50 -60 -70 1G 10M Product Folder Link(s): OPA3693 OPA3693 SBOS353A – DECEMBER 2006 – REVISED AUGUST 2008 SUPPLY VOLTAGE Output Input 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5 Supply Voltages ( V) ± Figure 26 ...

  • Page 12

    ... TYPICAL CHARACTERISTICS: ±5V (continued (–IN grounded) and R = 100Ω, unless otherwise noted. L -40 -50 -60 -70 -80 -90 12 Submit Documentation Feedback ............................................................................................................................................ ALL HOSTILE CROSSTALK Input-Referred Frequency (MHz) Figure 31. Copyright © 2006–2008, Texas Instruments Incorporated Product Folder Link(s): OPA3693 www.ti.com 100 ...

  • Page 13

    ... L O 650 R = 100 L 600 550 R = 150W L 500 450 400 200 300 4 4.0 3.5 3.0 2.5 2.0 1.5 1.0 Product Folder Link(s): OPA3693 OPA3693 SBOS353A – DECEMBER 2006 – REVISED AUGUST 2008 1000 Frequency (MHz) Figure 33. SMALL-SIGNAL BANDWIDTH vs SINGLE-SUPPLY VOLTAGE ...

  • Page 14

    ... Product Folder Link(s): OPA3693 www.ti.com W 2nd-Harmonic 3rd-Harmonic 1 Output Voltage ( Figure 39 1/3 P 50W OPA3693 O 500W 300W 300W 50W 1/3 P OPA3693 O 50W 300W 300W R = 100W L 50 100 150 200 250 300 Frequency (MHz) Figure 41. Copyright © 2006–2008, Texas Instruments Incorporated 10 ...

  • Page 15

    ... Figure 43. The noninverting input impedance of the OPA3693 is typically 100kΩ || 2pF. Driving directly into the noninverting input provides this very light load to the source. However, the source Copyright © 2006–2008, Texas Instruments Incorporated SBOS353A – ...

  • Page 16

    ... A demanding 100Ω load to a midpoint bias is used in + this characterization circuit. The new output stage 6 used in the OPA3693 can deliver large bipolar output current into this midpoint load with minimal crossover DIS distortion, as 3rd-harmonic distortion plots. ...

  • Page 17

    ... Figure 48. Buffer Frequency Response Product Folder Link(s): OPA3693 OPA3693 SBOS353A – DECEMBER 2006 – REVISED AUGUST 2008 as the M is very high +5V DIS R O 50W 1 OPA3693 300W 300W R M 50W -5V . Figure 48 shows a I Figure 43 compared to the Figure 47 ...

  • Page 18

    ... O amplifier frequency response. Figure 49 example gain of +2 line driver using the OPA3693 that incorporates a 40MHz low-pass Butterworth response with just a few external components. The filter resistor values have been adjusted slightly here from an ideal filter analysis to account for parasitic effects ...

  • Page 19

    ... Butterworth low-pass filter with a –3dB bandwidth of 20MHz. This filter is based on the KRC active filter topology that uses an amplifier with the fixed gain ≥ 1. The OPA3693 makes a good amplifier for this type of filter. The component values have been adjusted to compensate for the parasitic effects of the op amp. ...

  • Page 20

    ... F m 1/3 300W Selection Logic Figure 53. Multiplexed Converter Driver 49.9W 110W 220pF 255W 1/3 22pF 300W 48.7W 95.3W 68pF 100 300 1000 Figure 54. 7th-Order Butterworth Filter Product Folder Link(s): OPA3693 www.ti.com 0 4.99kW 0 4.99kW +5V REFT REFB +3.5V +1.5V +In ADS828 10-Bit 75MSPS -In CM 56pF 1/3 OPA3693 300W 300W ...

  • Page 21

    ... OPA3693 product folder. OPERATING SUGGESTIONS GAIN SETTING Setting the gain for the OPA3693 is very easy. For a gain of +2, ground the –IN pin and drive the +IN pin with the signal. For a gain of +1, either leave the –IN pin open and drive the +IN pin or drive both the +IN and – ...

  • Page 22

    ... Board Layout power level in dBm at the 50Ω load for one of the two closely-spaced test frequencies. For instance, at 50MHz, the OPA3693 at a gain of +2 has an intercept of 47dBm at a matched 50Ω load. If the full envelope of the two frequencies needs this requires each tone to be 4dBm (1V 3rd-order intermodulation spurious tones will then be 2 × ...

  • Page 23

    ... Below 4V , for either a 100Ω 500Ω load, the OPA3693 PP delivers greater than 14-bit linear output response. Copyright © 2006–2008, Texas Instruments Incorporated SBOS353A – ...

  • Page 24

    ... This gives a total input-referred noise voltage that exceeds the 1.8nV voltage term for the amplifier itself. DC ACCURACY AND OFFSET CONTROL A current-feedback op amp such as the OPA3693 provides exceptional bandwidth and slew rate giving fast pulse settling but only moderate dc accuracy. The Electrical Characteristics ...

  • Page 25

    ... Because the inverting input node is internal for the OPA3693 more robust to layout issues than amplifiers with similar speed but external feedback and gain ...

  • Page 26

    ... OPA3693 is used, as well as a terminating shunt resistor at the input of the destination device. Remember terminating impedance is the parallel combination of the shunt resistor and the input impedance of the destination device ...

  • Page 27

    ... Changed storage temperature range rating in Absolute Maximum Ratings table from –40°C to +125°C to –65°C to +125°C ................................................................................................................................................................................... 2 Copyright © 2006–2008, Texas Instruments Incorporated SBOS353A – DECEMBER 2006 – REVISED AUGUST 2008 Revision History ................................................................................................ Submit Documentation Feedback Product Folder Link(s): OPA3693 OPA3693 Page 27 ...

  • Page 28

    ... OPA3693IDBQ ACTIVE OPA3693IDBQG4 ACTIVE OPA3693IDBQR ACTIVE OPA3693IDBQRG4 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. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design ...

  • Page 29

    ... TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Type Drawing OPA3693IDBQR SSOP/ DBQ QSOP PACKAGE MATERIALS INFORMATION Pins SPQ Reel Reel A0 (mm) Diameter Width (mm) W1 (mm) 16 2500 330.0 12.4 6.4 Pack Materials-Page 1 19-May-2008 B0 (mm) K0 (mm Pin1 (mm) ...

  • Page 30

    ... Device Package Type OPA3693IDBQR SSOP/QSOP PACKAGE MATERIALS INFORMATION Package Drawing Pins SPQ Length (mm) DBQ 16 2500 Pack Materials-Page 2 19-May-2008 Width (mm) Height (mm) 346.0 346.0 29.0 ...

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  • Page 33

    ... 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’ ...