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Details, datasheet, quote on part number:OPA847IDBVR
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Datasheet text preview:
OPA847
OPA 847
SBOS251C JULY 2002 REVISED OCTOBER 2003
Wideband, Ultra-Low Noise, Voltage-Feedback OPERATIONAL AMPLIFIER with Shutdown
FEATURES
HIGH GAIN BANDWIDTH: 3.9GHz LOW INPUT VOLTAGE NOISE: 0.85nV/Hz VERY LOW DISTORTION: 105dBc (5MHz) HIGH SLEW RATE: 950V/µs HIGH DC ACCURACY: VIO < ±100µV LOW SUPPLY CURRENT: 18.1mA LOW SHUTDOWN POWER: 2mW STABLE FOR GAINS 12
DESCRIPTION
The OPA847 combines very high gain bandwidth and large signal performance with an ultra-low input noise voltage (0.85nV/ Hz ) while using only 18mA supply current. Where power savings is critical, the OPA847 also includes an optional power shutdown pin that, when pulled low, disables the amplifier and decreases the supply current to < 1% of the powered-up value. This optional feature may be left disconnected to ensure normal amplifier operation when no powerdown is required. The combination of very low input voltage and current noise, along with a 3.9GHz gain bandwidth product, make the OPA847 an ideal amplifier for wideband transimpedance applications. As a voltage gain stage, the OPA847 is optimized for a flat frequency response at a gain of +20V/V and is stable down to gains as low as +12V/V. New external compensation techniques allow the OPA847 to be used at any inverting gain with excellent frequency response control. Using this technique in a differential Analog-to-Digital Converter (ADC) interface application, shown below, can deliver one of the highest dynamic-range interfaces available.
APPLICATIONS
HIGH DYNAMIC RANGE ADC PREAMPS LOW NOISE, WIDEBAND, TRANSIMPEDANCE AMPLIFIERS WIDEBAND, HIGH GAIN AMPLIFIERS LOW NOISE DIFFERENTIAL RECEIVERS ULTRASOUND CHANNEL AMPLIFIERS IMPROVED UPGRADE FOR THE OPA687, CLC425, AND LMH6624
OPA847 RELATED PRODUCTS
SINGLES OPA842 OPA843 OPA846
0.001µF 100 OPA847 1.7pF 50 Source 20
INPUT NOISE VOLTAGE (nV/Hz ) 2.6 2.0 1.2
GAIN BANDWIDTH PRODUCT (MHz) 200 800 1750
+5V +5V
DIFFERENTIAL OPA847 DRIVER DISTORTION 70
2k 850 100pF VIN+
5V
Harmonic Distortion (dBc)
1:2
39pF
75 80 85 90 95 100 105 110
2VPP, at converter input.
< 5.1dB F oise N igure
39pF
850 2k 1.7pF 0.001µF OPA847 20
1 VCM ADS5421 4 4-Bit 0MSPS .1µF 0 100pF VIN
+5V
100
2nd-Harmonic 3rd-Harmonic
5V
24.6dB Gain
Ultra-High Dynamic Range Differential ADC Driver
10
20 Frequency (MHz)
30
40
50
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 © 2002-2003, Texas Instruments Incorporated
www.ti.com
ABSOLUTE MAXIMUM RATINGS(1)
Power Supply ....... ±6.5VDC Internal Power Dissipation ...... See Thermal Analysis Section Differential Input Voltage ......... ±1.2V Input Voltage Range .......... ±VS Storage Temperature Range: D, DBV .. 40°C to +125°C Lead Temperature (soldering, 10s) .... +300°C Junction Temperature (TJ ) ... +150°C ESD Rating (Human Body Model) ........ 1500V (Charge Device Model) ..... 1500V (Machine Model) .. 100V NOTE: (1) Stresses above these ratings may cause permanent damage. Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those specified is not implied.
ELECTROSTATIC DISCHARGE SENSITIVITY
Electrostatic discharge can cause damage ranging from performance degradation to complete device failure. Texas Instruments recommends that all integrated circuits be handled and stored using appropriate ESD protection methods. 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 published specifications.
PACKAGE /ORDERING INFORMATION
PRODUCT OPA847 PACKAGE-LEAD SO-8 PACKAGE DESIGNATOR(1) D SPECIFIED TEMPERATURE RANGE 40°C to +85°C PACKAGE MARKING OPA847 ORDERING NUMBER OPA847ID OPA847IDR OPA847IDBVT OPA847IDBVR TRANSPORT MEDIA, QUANTITY Rails, 100 Tape and Reel, 2500 Tape and Reel, 250 Tape and Reel, 3000
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OPA847
SOT23-6
DBV
40°C to +85°C
OATI
NOTE: (1) For the most current specifications and package information, refer to our web site at www.ti.com.
PIN CONFIGURATIONS
Top View SO Top View SOT
Output
1
6
+VS DIS
VS Noninverting Input
NC Inverting Input Noninverting Input VS 1 2 3 4 NC = No Connection 8 7 6 5 DIS +VS Output NC
2 3
5 4
Inverting Input
6
5
OATI
1 2
Pin Orientation/Package Marking
3
4
2
OPA847
www.ti.com
SBOS251C
ELECTRICAL CHARACTERISTICS: VS = ±5V
Boldface limits are tested at +25°C.
RL = 100, RF = 750, RG = 39.2, and G = +20 (see Figure 1 for AC performance only), unless otherwise noted. OPA847ID, IDBV TYP PARAMETER AC PERFORMANCE (see Figure 1) Closed-Loop Bandwidth CONDITIONS G = +12, RG = 39.2, VO = 200mVPP G = +20, RG = 39.2, VO = 200mVPP G = +50, RG = 39.2, VO = 200mVPP G +50 G = +20, RL = 100 G = +20, f = 5MHz, VO = 2VPP RL = 100 RL = 500 RL = 100 RL = 500 G = +20, f = 20MHz f > 1MHz f > 1MHz 0.2V Step 2V Step 2V Step 2V Step 2V Step VO = 0V VCM = 0V VCM = 0V VCM = 0V VCM = 0V VCM = 0V VCM = 0V +25°C 600 350 78 3900 60 4.5 74 105 103 110 39 0.85 2.5 1.2 950 20 10 6 98 ±0.1 ±0.25 19 15 ±0.1 ±0.1 ±3.3 110 2.7 || 2.0 2.3 || 1.7 ±3.5 ±3.4 100 75 0.003 ±5 ±6 18.1 18.1 100 200 3.5 1.8 150 200 60 70 40 to +85 Junction-to-Ambient 125 150 °C/W °C/W typ typ C C ±3.3 ±3.2 60 60 ±3.1 ±3.0 56 56 ±3.0 ±2.9 52 52 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 dB dBc dBc dBc dBc dBm nV/Hz pA/Hz ns V/µs ns ns ns dB mV µV/°C µA nA/°C µA nA/°C V dB k || pF M || pF V V mA mA V V mA mA dB µA V V µA ns ns dB °C MIN/ TEST MAX LEVEL(3) typ min min min min max max max max max min max max max min typ max max min max max max max max max min min typ typ min min min min typ typ max max min min max min max max typ typ typ typ C B B B B B B B B B B B B B B C B B A A B A B A B A A C C A A A A C C A A A A A A A A C C C C
Gain Bandwidth Product (GBP) Bandwidth for 0.1dB Gain Flatness Peaking at a Gain of +12 Harmonic Distortion 2nd-Harmonic 3rd-Harmonic 2-Tone, 3rd-Order Intercept Input Voltage Noise Density Input Current Noise Density Pulse Response Rise-and-Fall Time Slew Rate Settling Time to 0.01% 0.1% 1% DC PERFORMANCE(4) Open-Loop Voltage Gain (AOL) Input Offset Voltage Average Offset Voltage Drift Input Bias Current Input Bias Current Drift (magnitude) Input Offset Current Input Offset Current Drift INPUT Common-Mode Input Range (CMIR)(5) Common-Mode Rejection Ratio (CMRR) Input Impedance Differential Common-Mode OUTPUT Output Voltage Swing Current Output, Sourcing Current Output, Sinking Closed-Loop Output Impedance POWER SUPPLY Specified Operating Voltage Maximum Operating Voltage Maximum Quiescent Current Minimum Quiescent Current Power-Supply Rejection Ratio +PSRR, PSRR POWER-DOWN (disabled low) Power-Down Quiescent Current (+VS) On Voltage (enabled high or floated) Off Voltage (disabled asserted low) Power-Down Pin Input Bias Current Power-Down Time Power-Up Time Off Isolation THERMAL Specification ID, IDBV Thermal Resistance, JA D SO-8 DBV SOT23
230 63 3100 40 7 70 90 96 105 37 0.92 3.5 1.75 700 12 8 90 ±0.5 ±0.25 39 15 ±0.6 ±0.1 ±3.1 95
210 60 3000 35 10 69 89 91 100 36 0.98 3.6 2.0 625 14 10 89 ±0.58 ±1.5 41 40 ±0.7 ±2 ±3.0 93
195 57 2800 30 12 68 88 88 90 35 1.0 3.7 2.2 535 18 12 88 ±0.60 ±1.5 42 70 ±0.85 ±3.5 ±2.9 90
VCM = ±0.5V, Input Referred VCM = 0V VCM = 0V 400 Load 100 Load VO = 0V VO = 0V G = +20, f = < 100kHz
VS = ±5V VS = ±5V |VS| = 4.5V to 5.5V, Input Referred (Pin 8 on SO-8; Pin 5 on SOT23-6)
±6 18.4 17.8 95 270 3.75 1.7 190
±6 18.7 17.5 93 320 3.85 1.6 200
±6 18.9 17.1 90 370 3.95 1.5 210
(VDIS = 0) 5MHz, Input to Output
NOTES: (1) Junction temperature = ambient for +25°C specifications. (2) Junction temperature = ambient at low temperature limit: junction temperature = ambient +23°C at high temperature limit for over temperature 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 CMRR at ±CMIR limits.
OPA847
SBOS251C
www.ti.com
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