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Details, datasheet, quote on part number:AD844AChips
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| Part: | AD844AChips |
| Category: | Analog & Mixed-Signal Processing => Amplifiers => Operational Amplifiers => High Speed => Single |
| Description: | 60 Mhz, 2000 V/µms Monolithic op Amp |
| Company: | Analog Devices |
| Datasheet: | Download AD844AChips datasheet File size : 505 kB |
| Request For quote: | Find where to buy AD844AChips
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Datasheet text preview:
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FEATURES Wide Bandwidth: 60 MHz at Gain of 1 Wide Bandwidth: 33 MHz at Gain of 10 Very High Output Slew Rate: Up to 2000 V/ s F0 MHz Full Power Bandwidth, 20 V pk-pk, RL = 500 2 ast Settling: 100 ns to 0.1% (10 V Step) Differential Gain Error: 0.03% at 4.4 MHz Differential Phase Error: 0.15 at 4.4 MHz High Output Drive: 50 mA into 50 Load Low Offset Voltage: 150 V max (B Grade) Low Quiescent Current: 6.5 mA Available in Tape and Reel in Accordance with EIA-481A Standard APPLICATIONS Flash ADC Input Amplifiers High Speed Current DAC Interfaces Video Buffers and Cable Drivers Pulse Amplifiers PRODUCT DESCRIPTION
60 MHz, 2000 V/ s Monolithic Op Amp AD844
CONNECTION DIAGRAMS 8-Pin Plastic (N), and Cerdip (Q) Packages 16-Pin SOIC (R) Package
The AD844 is a high speed monolithic operational amplifier fabricated using Analog Devices' junction isolated complementary bipolar (CB) process. It combines high bandwidth and very fast large signal response with excellent dc performance. Although optimized for use in current to voltage applications and as an inverting mode amplifier, it is also suitable for use in many noninverting applications. The AD844 can be used in place of traditional op amps, but its current feedback architecture results in much better ac performance, high linearity and an exceptionally clean pulse response. This type of op amp provides a closed-loop bandwidth which is determined primarily by the feedback resistor and is almost independent of the closed-loop gain. The AD844 is free from the slew rate limitations inherent in traditional op amps and other current-feedback op amps. Peak output rate of change can be over 2000 V/µs for a full 20 V output step. Settling time is typically 100 ns to 0.1%, and essentially independent of gain. The AD844 can drive 50 loads to ± 2.5 V with low distortion and is short circuit protected to 80 mA. The AD844 is available in four performance grades and three package options. In the 16-pin SOIC (R) package, the AD844J is specified for the commercial temperature range of 0°C to +70°C. The AD844A and AD844B are specified for the industrial temperature range of 40°C to +85°C and are available in the cerdip (Q) package. The AD844A is also available in an 8-pin plastic mini-DIP (N). The AD844S is specified over the military temperature range of 55°C to +125°C. It is available in the 8-pin cerdip (Q) package. "A" and "S" grade chips and devices processed to MIL-STD-883B, REV. C are also available. REV. C
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
PRODUCT HIGHLIGHTS
1. The AD844 is a versatile, low cost component providing an excellent combination of ac and dc performance. It may be used as an alternative to the EL2020 and CLC400/1. 2. It is essentially free from slew rate limitations. Rise and fall times are essentially independent of output level. 3. The AD844 can be operated from ± 4.5 V to ± 18 V power supplies and is capable of driving loads down to 50 , as well as driving very large capacitive loads using an external network. 4. The offset voltage and input bias currents of the AD844 are laser trimmed to minimize dc errors; VOS drift is typically 1 µV/°C and bias current drift is typically 9 nA/°C. 5. The AD844 exhibits excellent differential gain and differential phase characteristics, making it suitable for a variety of video applications with bandwidths up to 60 MHz. 6. The AD844 combines low distortion, low noise and low drift with wide bandwidth, making it outstanding as an input amplifier for flash A/D converters.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 617/329-4700 Fax: 617/326-8703
AD844SPECIFICATIONS (@ T = +25 C and V =
A S
15 V dc, unless otherwise noted)
Min AD844B Typ 50 75 1 4 4 10 10 150 750 9 175 220 90 110 100 300 3 80 100 90 130 Max 150 200 5 10 10 20 20 250 1100 15 200 240 110 150 200 500 7 100 120 120 190 AD844S Min Typ Max 50 125 1 4 4 10 10 200 1900 20 175 220 90 120 100 800 7 80 120 90 140 300 500 5 20 20 35 35 450 2500 30 250 300 160 200 400 1300 15 150 200 150 200 Units µV µV µV/°C µV/V µV/V µV/V µV/V nA nA nA/°C nA/V nA/V nA/V nA/V nA nA nA/°C nA/V nA/V nA/V nA/V
Model INPUT OFFSET VOLTAGE TMINTMAX vs. Temperature vs. Supply Initial TMINTMAX vs. Common Mode Initial TMINTMAX INPUT BIAS CURRENT Input Bias Current1 TMINTMAX vs. Temperature vs. Supply Initial TMINTMAX vs. Common Mode Initial TMINTMAX +Input Bias Current1 TMINTMAX vs. Temperature vs. Supply Initial TMINTMAX vs. Common Mode Initial TMINTMAX INPUT CHARACTERISTICS Input Resistance Input +Input Input Capacitance Input +Input Input Voltage Range Common Mode INPUT VOLTAGE NOISE INPUT CURRENT NOISE Input +Input OPEN LOOP TRANSRESISTANCE TMINTMAX Transcapacitance DIFFERENTIAL GAIN ERROR2 DIFFERENTIAL PHASE ERROR FREQUENCY RESPONSE Small Signal Bandwidth 3 Gain = 1 4 Gain = 10 TOTAL HARMOMIC DISTORTION SETTLING TIME 10 V Output Step Gain = 1, to 0.1%5 Gain = 10, to 0.1%6 2 V Output Step Gain = 1, to 0.1%5 Gain = 10, to 0.1%6
2 1
Conditions
Min
AD844J/A Typ Max 50 75 1 300 500
5 V18 V 4 4 VCM = +10 V 10 10 200 800 9 5 V18 V 175 220 VCM = +10 V 90 110 150 350 3 5 V18 V VCM = ± 1 0 V 80 100 90 130 150 160 400 700 250 35 20
450 1500
150
7
50 10 2 2
65 7
50 10 2 2
65 7
50 10 2 2
65
M pF pF V
± 10 f 1 kHz f 1 kHz f 1 kHz VOUT = ± 1 0 V RLOAD = 500 2.2 1.3 2 10 12 3.0 2.0 4.5 0.03 0.15
± 10 2 10 12 2.8 1.6 3.0 2.0 4.5 0.03 0.15
± 10 2 10 12 2.2 1.3 3.0 1.6 4.5 0.03 0.15
nV/ Hz pA/ Hz pA/ Hz M M pF % Degree
f = 4.4 MHz f = 4.4 MHz
60 33 f = 100 kHz, 2 V rms5 ± 15 V Supplies ± 5 V Supplies 100 100 110 100 0.005
60 33 0.005
60 33 0.005
MHz MHz %
100 100 110 100
100 100 110 100
ns ns ns ns
2
REV. C
AD844
Model OUTPUT SLEW RATE FULL POWER BANDWIDTH VOUT = 20 V p-p5 VOUT = 2 V p-p5 OUTPUT CHARACTERISTICS Voltage Short Circuit Current TMINTMAX Output Resistance Conditions Overdriven Input VS = ± 1 5 V VS = ± 5 V THD = 3% RLOAD = 500 10 Min 1200 AD844J/A Typ Max 2000 20 20 Min 1200 AD844B Typ 2000 20 20 Max AD844S Min Typ Max 1200 2000 20 20 Units V/µs MHz MHz
Open Loop ± 4.5
11 80 60 15 ± 18 7.5
10
11 80 60 15 ± 18 7.5
10
11 80 60 15 ± 18 7.5
±V mA mA V mA
POWER SUPPLY
Operating Range Quiescent Current TMINTMAX ± 4.5 6.5 +4.5 6.5 6.5
7.5
8.5
7.5
8.5
8.5
9.5
mA
NOTES 1 Rated performance after a 5 minute warmup at T A = 25°C. 2 Input signal 285 mV p-p carrier (40 IRE) riding on 0 mV to 642 mV (90 IRE) ramp. R L= 100 ; R1, R2 = 300 . 3 Input signal 0 dBm, C L = 10 pF, R L = 500 , R1 = 500 , R2 = 500 in Figure 26. 4 Input signal 0 dBm, C L =10 pF, R L = 500 , R1 = 500 , R2 = 50 in Figure 26. 5 CL = 10 pF, R L = 500 , R1 = 1 k, R2 = 1 k in Figure 26. 6 CL = 10 pF, R L = 500 , R1 = 500 , R2 = 50 in Figure 26. Specifications subject to change without notice. All min and max specifications are guaranteed. Specifications shown in boldface are tested on all production units at final electrical test.
ABSOLUTE MAXIMUM RATINGS 1
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .± 18 V Power Dissipation2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W Output Short Circuit Duration . . . . . . . . . . . . . . . . . Indefinite Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . . ± VS Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Inverting Input Current Continuous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 mA Transient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 mA Storage Temperature Range (Q) . . . . . . . . . . 65°C to +150°C Storage Temperature Range (N, R) . . . . . . . . 65°C to +125°C Lead Temperature Range (Soldering 60 sec) . . . . . . . . +300°C ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 V
NOTES 1 Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2 28-Pin Plastic Package: JA = 100°C/Watt 8-Pin Cerdip Package: JA = 110°C/Watt 16-Pin SOIC Package: JA = 100°C/Watt
METALIZATION PHOTOGRAPH
Contact factory for latest dimensions. Dimension shown in inches and (mm).
ORDERING GUIDE Temperature Range Package Option*
Model
AD844JR AD844JR-REEL AD844AN AD844AQ AD844BQ AD844SQ AD844SQ/883B 5962-8964401PA AD844A Chips AD844S Chips
0°C to +70°C 0°C to +70°C 40°C to +85°C 40°C to +85°C 40°C to +85°C 55°C to +125°C 55°C to +125°C 55°C to +125°C 40°C to +85°C 55°C to +125°C
R-16 Tape and Reel N-8 Q-8 Q-8 Q-8 Q-8 Q-8 Die Die
*N = Plastic DIP; Q = Cerdip; R = Small Outline IC (SOIC).
REV. C
3
AD844Typical Characteristics (T = +25 C and V =
A S
15 V, unless otherwise noted)
Figure 1. 3 dB Bandwidth vs. Supply Voltage R1 = R2 = 500
Figure 2. Harmonic Distortion vs. Frequency, R1 = R2 = 1 k
Figure 3. Transresistance vs. Temperature
Figure 4. Noninverting Input Voltage Swing vs. Supply Voltage
Figure 5. Output Voltage Swing vs. Supply Voltage
Figure 6. Quiescent Supply Current vs. Temperature and Supply Voltage
Figure 7. Inverting Input Bias Current (IBN) and Noninverting Input Bias Current (IBP) vs. Temperature
Figure 8. Output Impedance vs. Frequency, Gain = 1, R1 = R2 = 1 k
Figure 9. 3 dB Bandwidth vs. Temperature, Gain = 1, R1 = R2 = 1 k
4
REV. C
AD844 Inverting Gain of 1 AC Characteristics
Figure 10. Inverting Amplifier, Gain of 1 (R1 = R2)
Figure 11. Gain vs. Frequency for Gain = 1, RL = 500 , CL = 0 pF
Figure 12. Phase vs. Frequency Gain = 1, RL = 500 , CL = 0 pF
Figure 13. Large Signal Pulse Response, Gain = 1, R1 = R2 = 1 k
Figure 14. Small Signal Pulse Response, Gain = 1, R1 = R2 = 1 k
Inverting Gain of 10 AC Characteristics
Figure 15. Gain of 10 Amplifier
Figure 16. Gain vs. Frequency, Gain = 10
Figure 17. Phase vs. Frequency, Gain = 10
REV. C
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