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Details, datasheet, quote on part number:OPA3684IDBQ
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| Part: | OPA3684IDBQ |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => High Speed/Video Amplifiers => Current Feedback |
| Description: | ti OPA3684, Low-Power, Triple Current Feedback Operational Amplifier With Disable |
| Company: | Texas Instruments, Inc. |
| Datasheet: | Download OPA3684IDBQ datasheet File size : 474 kB |
| Request For quote: | Find where to buy OPA3684IDBQ
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Datasheet text preview:
OPA3684
OPA 368 4
SBOS241A MAY 2002 REVISED SEPTEMBER 2002
Low-Power, Triple Current-Feedback OPERATIONAL AMPLIFIER With Disable
FEATURES
q q q q q q q q q MINIMAL BANDWIDTH CHANGE VERSUS GAIN 170MHz BANDWIDTH: G = +2 > 120MHz BANDWIDTH TO GAIN > +10 LOW DISTORTION: < 82dBc at 5MHz HIGH OUTPUT CURRENT: 120mA SINGLE +5V TO +12V SUPPLY OPERATION DUAL ±2.5V TO ±6.0V SUPPLY OPERATION LOW SUPPLY CURRENT: 1.7mA/ch LOW SHUTDOWN CURRENT: 100µA/ch
APPLICATIONS
q q q q q q RGB LINE DRIVERS LOW-POWER BROADCAST VIDEO DRIVERS EQUALIZING FILTERS MULTICHANNEL SUMMING AMPLIFIERS PROFESSIONAL CAMERAS ADC INPUT DRIVERS
DESCRIPTION
The OPA3684 provides a new level of performance in low-power, wideband, current-feedback (CFB) amplifiers. This CFBPLUS amplifier among the first to use an internally closed-loop input buffer stage that enhances performance significantly over earlier lowpower CFB amplifiers. While retaining the benefits of very low power operation, this new architecture provides many of the benefits of a more ideal CFB amplifier. The closed-loop input stage buffer gives a very low and linearized impedance path at the inverting input to sense the feedback error current. This improved inverting input impedance retains exceptional bandwidth to much higher gains and improves harmonic distortion over earlier solutions limited by inverting input linearity. Beyond simple high-gain applications, the OPA3684 CFBPLUS amplifier permits the gain setting element to be set with considerable freedom from amplifier bandwidth interaction. This allows frequency response peaking elements to be added, multiple input inverting summing circuits to
have greater bandwidth, and low-power line drivers to meet the demanding requirements of studio cameras and broadcast video. The output capability of the OPA3684 also sets a new mark in performance for low-power current-feedback amplifiers. Delivering a full ±4Vp-p swing on ±5V supplies, the OPA3684 also has the output current to support > ±3Vp-p into 50. This minimal output headroom requirement is complemented by a similar 1.2V input stage headroom giving exceptional capability for single +5V operation. The OPA3684's low 1.7mA/ch supply current is precisely trimmed at 25°C. This trim, along with low shift over temperature and supply voltage, gives a very robust design over a wide range of operating conditions. System power may be further reduced by using the optional disable control pin. Leaving this disable pin open, or holding it HIGH, gives normal operation. If pulled LOW, the OPA3684 supply current drops to less than 100µA/ch while the I/O pins go to a high impedance state.
1 of 3 Channels V+
BW (MHz) vs GAIN 6 3
Normalized Gain (3dB/div)
G=1 G=2
0 3 6 9 12 15 18 21 24 10 G = 50 RF = 800 G = 100 100 MHz 200 G = 10 G = 20 G=5
+
VO
V IERR RF
Z(S) IERR
RG
Low-Power
Patent Pending
Amplifier
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.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 2002, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
Power Supply ....... ±6.5VDC Internal Power Dissipation ......... See Thermal Information Differential Input Voltage ......... ±1.2V Input Voltage Range .......... ±VS Storage Temperature Range: ID, IDBQ ...... 40°C to +125°C Lead Temperature (soldering, 10s) .... +300°C Junction Temperature (TJ ) .. +175°C ESD Rating: HBM .......... 1900V CDM ......... 1500V NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability.
ELECTROSTATIC DISCHARGE SENSITIVITY
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. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
OPA3684 RELATED PRODUCTS
SINGLES OPA684 OPA691 OPA685 OPA692 DUALS OPA2684 OPA2691 -- -- TRIPLES -- OPA3691 -- OPA3692 QUADS OPA4684 -- -- -- FEATURES Low-Power CFBplus High Slew Rate CFB > 500MHz CFB Fixed-Gain Video Buffers
PACKAGE /ORDERING INFORMATION
PRODUCT OPA3684 PACKAGE-LEAD SO-14 PACKAGE DESIGNATOR(1) D SPECIFIED TEMPERATURE RANGE 40°C to +85°C PACKAGE MARKING OPA3684 ORDERING NUMBER OPA3684ID OPA3684IDR OPA3684IDBQT OPA3684IDBQR TRANSPORT MEDIA, QUANTITY Rails, 58 Tape and Reel, 2500 Tape and Reel, 250 Tape and Reel, 2500
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OPA3684
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SSOP-16
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DBQ
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40°C to +85°C
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OPA3684
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NOTE: (1) For the most current specifications, and package information, refer to our web site at www.ti.com.
PIN CONFIGURATION
Top View SO Top View SSOP
DIS A DIS B DIS C +VS +Input A Input A Output A
1 2 C 3 4 5 A 6 7 B
14 Output C 13 Input C 12 +Input C 11 VS 10 +Input B 9 8 Input B Output B
DIS A DIS B DIS C +V S +Input A Input A Output A NC
1 2 C 3 4 5 A 6 7 8 B
16 Output C 15 Input C 14 +Input C 1 3 VS 12 +Input B 11 Input B 10 Output B 9 NC
2
OPA3684
www.ti.com
SBOS241A
ELECTRICAL CHARACTERISTICS: VS = ±5V
Boldface limits are tested at +25°C.
RF = 800, RL = 100, and G = +2, unless otherwise noted. OPA3684ID, IDBQ TYP PARAMETER AC PERFORMANCE (see Figure 1) Small-Signal Bandwidth (VO = 0.5Vp-p) CONDITIONS G = +1, RF = 800 G = +2, RF = 800 G = +5, RF = 800 G = +10, RF = 800 G = +20, RF = 800 G = +2, VO = 0.5Vp-p, RF = 800 RF = 800, VO = 0.5Vp-p G = +2, VO = 4Vp-p G = 1, VO = 4V Step G = +2,VO = 4V Step G = +2, VO = 0.5V Step G = +2, VO = 4VStep G = +2, f = 5MHz, VO = 2Vp-p RL = 100 RL 1k RL = 100 RL 1k f > 1MHz f > 1MHz f > 1MHz G = +2, NTSC, VO = 1.4Vp, RL = 150 G = +2, NTSC, VO = 1.4Vp, RL = 150 2 Channels, f = 5MHz 3rd-Channel Measured VO = 0V, RL = 1k VCM = 0V VCM = 0V VCM = 0V VCM = 0V VCM = 0V VCM = 0V +25°C 250 170 138 120 95 19 1.4 90 780 750 3 6.8 67 82 70 84 3.7 9.4 17 0.04 0.02 70 MIN/MAX OVER TEMPERATURE +25°C(1) 0°C to 70°C(2) 40°C to +85°C(2) UNITS MHz MHz MHz MHz MHz MHz dB MHz V/µs V/µs ns ns dBc dBc dBc dBc nV/Hz pA/Hz pA/Hz % deg dB MIN/ TEST MAX LEVEL(3) typ min typ typ typ min max typ min min typ typ max max max max max max max typ typ typ C B C C C B B C B B C C B B B B B B B C C C
120
118
117
Bandwidth for 0.1dB Gain Flatness Peaking at a Gain of +1 Large-Signal Bandwidth Slew Rate Rise-and-Fall Time Harmonic Distortion 2nd-Harmonic 3rd-Harmonic Input Voltage Noise Noninverting Input Current Noise Inverting Input Current Noise Differential Gain Differential Phase All Hostile Crosstalk DC PERFORMANCE(4) Open-Loop Transimpedance Gain (ZOL) Input Offset Voltage Average Offset Voltage Drift Noninverting Input Bias Current Average Noninverting Input Bias Current Drift Inverting Input Bias Current Average Inverting Input Bias Current Drift INPUT Common-Mode Input Range(5) (CMIR) Common-Mode Rejection Ratio (CMRR) Noninverting Input Impedance Inverting Input Resistance (RI) OUTPUT Voltage Output Swing Current Output, Sourcing Current Output, Sinking Closed-Loop Output Impedance DISABLE (Disabled LOW) Power-Down Supply Current (+VS) Disable Time Enable Time Off Isolation Output Capacitance in Disable Enable Voltage Disable Voltage Control Pin Input Bias Current (DIS) POWER SUPPLY Specified Operating Voltage Maximum Operating Voltage Range Max Quiescent Current Min Quiescent Current Power-Supply Rejection Ratio (PSRR) TEMPERATURE RANGE Specification: D, DBQ Thermal Resistance, JA D SO-14 DBQ SSOP-16
16 4.8 675 680
14 5.9 650 660
14 6.3 575 650
59 66 66 82 4.1 11 18
59 65 65 81 4.2 12 18.5
58 65 65 81 4.4 12.5 19
355 ±1.5 ±5.0 ±5.0
±3.9 ±12 ±17 ±3.65
53
160
155 ±4.5 ±12 ±13.5 ±25 ±18.5 ±35 ±3.65 52
153 ±4.7 ±12 ±14 ±30 ±19.5 ±40 ±3.6 52
k mV µV/°C µA nA/°C µA nA°/C V dB k || pF V mA mA µA ms ns dB pF V V µA V V mA mA dB °C °C/W °C/W
min max max max max max max min min typ typ min min min typ max typ typ typ typ min max max typ max max min typ typ typ typ
A A B A B A B A A C C A A A C A C C C C A A A C A A A A C C C
VCM = 0V Open-Loop, DC 1k Load VO = 0 VO = 0 G = +2, f = 100kHz VDIS = 0 (all channels) VIN = +1V, G = +2 VIN = +1V, G = +2 G = +2, 5MHz
±3.75 60 50 || 2 4.0 ±4.1 160 120 0.006 300 4 40 70 1.7 3.4 1.8 80 ±5
±3.9
120 100
±3.9 115 95
±3.8 110 90
500
580
600
VDIS = 0V/Channel
3.5 1.7 120
3.6 1.6 130
3.7 1.5 135
VS = ±5V/per Channel VS = ±5V/per Channel Input Referred
±6
1.8 1.6 54
1.7 1.7 60 40 to +85
±6 1.85 1.55 53
±6 1.85 1.45 53
Junction-to-Ambient 100 100
NOTES: (1) Junction temperature = ambient for +25°C tested specifications. (2) Junction temperature = ambient at low temperature limit, junction temperature = ambient +2°C at high temperature limit for over temperature tested specifications. (3) Test levels: (A) 100% tested at +25°C. Over-temperature limits by characterization and simulation. (B) Limits set by characterization and simulation. (C) Typical value only for information. (4) Current is considered positive out-of-node. VCM is the input common-mode voltage. (5) Tested < 3dB below minimum specified CMR at ± CMIR limits.
OPA3684
SBOS241A
www.ti.com
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