8964401PA

AD844_07 AD | Alldatasheet

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REV.D 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 that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD844 Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 2001

60 MHz, 2000 V//H9262s

The AD844 is a high-speed monolithic operational amplifier fabricated using Analog Devices’ junction isolated complemen- tary 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 perfor- mance, 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 inde- pendent 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 Ω 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-lead 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 tem- perature range of –40°C to +85°C and are available in the cerdip (Q) 16-Lead SOIC (R) Package TOP VIEW (Not to Scale) NC = NO CONNECT NC OFFSETNULL –IN NC +IN NC NC NC OFFSETNULL NC OUTPUT TZ NC NC AD844 8-Lead Plastic (N), and Cerdip (Q) Packages TOP VIEW (Not to Scale) NULL –IN +IN NULL +VS OUTPUT TZ–VS AD844 package. The AD844A is also available in an 8- lead plastic mini-DIP (N). The AD844S is specified over the military tempera- ture range of –55 °C to +125 °C. It is available in the 8-lead cerdip (Q) package. “A” and “S” grade chips and devices processed to MIL-STD-883B, REV. C are also available. PRODUCT HIGHLIGHTS 1. The AD844 is a versatile, low cost component providing an excellent combination of ac and dc performance. 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 Ω, 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; V OS drift is typically 1 µV/°C and bias current drift is typically 9 nA/ °C. 5. The AD844 exhibits excellent differential gain and differen- tial 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.

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/ /H9262s

20 MHz Full Power Bandwidth, 20 V p-p, R L = 500 /H9024

Fast Settling: 100 ns to 0.1% (10 V Step) Differential Gain Error: 0.03% at 4.4 MHz Differential Phase Error: 0.158 at 4.4 MHz High Output Drive: 650 mA into 50 /H9024 Load Low Offset Voltage: 150 mV 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

REV. D–2– AD844–SPECIFICATIONS AD844J/A AD844B AD844S Model Conditions Min Typ Max Min Typ Max Min Typ Max Unit INPUT OFFSET VOLTAGE 1 50 300 50 150 50 300 µV TMIN–TMAX 75 500 75 200 125 500 µV vs. Temperature 1 1 5 1 5 µV/°C vs. Supply 5 V–18 V Initial 4 20 4 10 4 20 µV/V TMIN–TMAX 44 1 0 4 2 0 µV/V vs. Common Mode V CM = ±10 V Initial 10 35 10 20 10 35 µV/V TMIN–TMAX 10 10 20 10 35 µV/V INPUT BIAS CURRENT –Input Bias Current 1 200 450 150 250 200 450 nA TMIN–TMAX 800 1500 750 1100 1900 2500 nA vs. Temperature 9 9 15 20 30 nA/ °C vs. Supply 5 V–18 V Initial 175 250 175 200 175 250 nA/V TMIN–TMAX 220 220 240 220 300 nA/V vs. Common Mode V CM = ±10 V Initial 90 160 90 110 90 160 nA/V TMIN–TMAX 110 110 150 120 200 nA/V +Input Bias Current 1 150 400 100 200 100 400 nA TMIN–TMAX 350 700 300 500 800 1300 nA vs. Temperature 3 3 7 7 15 nA/ °C vs. Supply 5 V–18 V Initial 80 150 80 100 80 150 nA/V TMIN–TMAX 100 100 120 120 200 nA/V vs. Common Mode V CM = ±10 V Initial 90 150 90 120 90 150 nA/V TMIN–TMAX 130 130 190 140 200 nA/V INPUT CHARACTERISTICS Input Resistance –Input 50 65 50 65 50 65 Ω +Input 7 10 7 10 7 10 M Ω Input Capacitance –Input 2 2 2 pF +Input 2 2 2 pF Input Voltage Range Common Mode ± 10 ± 10 ± 10 V INPUT VOLTAGE NOISE f ≥ 1 kHz 2 2 2 nV/ √Hz INPUT CURRENT NOISE –Input f ≥ 1 kHz 10 10 10 pA/ √Hz +Input f ≥ 1 kHz 12 12 12 pA/ √Hz OPEN LOOP TRANSRESISTANCE V OUT = ±10 V Transcapacitance 4.5 4.5 4.5 pF DIFFERENTIAL GAIN ERROR 2 f = 4.4 MHz 0.03 0.03 0.03 % DIFFERENTIAL PHASE ERROR 2 f = 4.4 MHz 0.15 0.15 0.15 Degree FREQUENCY RESPONSE Small Signal Bandwidth Gain = –13 60 60 60 MHz Gain = –104 33 33 33 MHz TOTAL HARMOMIC DISTORTION f = 100 kHz, 2 V rms5 0.005 0.005 0.005 % SETTLING TIME

10 V Output Step ± 15 V Supplies

Gain = –1, to 0.1% 5 100 100 100 ns Gain = –10, to 0.1% 6 100 100 100 ns

2 V Output Step ± 5 V Supplies

Gain = –1, to 0.1% 5 110 110 110 ns Gain = –10, to 0.1% 6 100 100 100 ns (@ TA = 25/H11543C and VS = /H1155015 V dc, unless otherwise noted)

REV. D AD844 –3– ORDERING GUIDE Temperature Package Model Range Option * AD844AN –40 °C to +85°C N-8 AD844ACHIPS –40 °C to +85°CD i e AD844AQ –40 °C to +85°C Q-8 AD844BQ –40 °C to +85°C Q-8 AD844JR-16 0 °C to 70°C R-16 AD844JR-16-REEL 0 °C to 70°C 13" Tape and Reel AD844JR-16-REEL7 0 °C to 70°C 7" Tape and Reel AD844SCHIPS –55 °C to +125°CD i e AD844SQ –55 °C to +125°C Q-8 AD844SQ/883B –55 °C to +125°C Q-8 5962-8964401PA –55 °C to +125°C Q-8 *N = Plastic DIP; Q = Cerdip; R = Small Outline IC (SOIC). AD844J/A AD844B AD844S Model Conditions Min Typ Max Min Typ Max Min Typ Max Unit OUTPUT SLEW RATE Overdriven Input 1200 2000 1200 2000 1200 2000 V/ µs FULL POWER BANDWIDTH VOUT = 20 V p-p5 VS = ± 15 V 20 20 20 MHz VOUT = 2 V p-p5 VS = ± 5 V 20 20 20 MHz THD = 3% OUTPUT CHARACTERISTICS Voltage R LOAD = 500 Ω 10 11 10 11 10 11 ± V Short Circuit Current 80 80 80 mA T MIN–TMAX 60 60 60 mA Output Resistance Open Loop 15 15 15 Ω POWER SUPPLY Operating Range ± 4.5 ± 18 ± 4.5 ± 18 +4.5 ± 18 V NOTES 1Rated performance after a 5 minute warmup at T A = 25°C. 2Input signal 285 mV p-p carrier (40 IRE) riding on 0 mV to 642 mV (90 IRE) ramp. R L= 100 Ω; R1, R2 = 300 Ω. 3Input signal 0 dBm, C L = 10 pF, R L = 500 Ω, R1 = 500 Ω, R2 = 500 Ω in Figure 2. 4Input signal 0 dBm, C L =10 pF, R L = 500 Ω, R1 = 500 Ω, R2 = 50 Ω in Figure 2. 5CL = 10 pF, R L = 500 Ω, R1 = 1 k Ω, R2 = 1 kΩ in Figure 2. 6CL = 10 pF, R L = 500 Ω, R1 = 500 Ω, R2 = 50 Ω in Figure 2. Specifications subject to change without notice. All min and max specifications are guaranteed. ABSOLUTE MAXIMUM RATINGS 1 Inverting Input Current NOTES 1Stresses above those listed under Absolute Maximum Ratings may cause perma- nent 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. 28-Lead Plastic Package: θJA = 90°C/W 8-Lead Cerdip Package: θJA = 110°C/W 16-Lead SOIC Package: θJA = 100°C/W METALIZATION PHOTOGRAPH Contact factory for latest dimensions. Dimension shown in inches and (mm).

REV. 0–4– SUPPL Y VOL T AGE – /H11550V –3dB BANDWIDTH – MHz 05 2 0 10 15 TPC 1. –3 dB Bandwidth vs. Supply Voltage R1 = R2 = 500 Ω SUPPL Y VOL T AGE – /H11550V MAGNITUDE OF THE OUTPUT VOL T AGE – V20 05 2 0 10 15 TA = 25/H11543C TPC 4. Noninverting Input Voltage Swing vs. Supply Voltage TEMPERA TURE – /H11543C INPUT BIAS CURRENT – /H9262A –50 150 0 50 100 IBP IBN TPC 7. Inverting Input Bias Cur- rent (IBN) and Noninverting Input Bias Current (IBP) vs. Temperature INPUT FREQUENCY – Hz HARMONIC DISTORTION – dB –60 –70 100 1k 100k 10k –100 –80 –90 –110 –120 –130 3RD HARMONIC 2ND HARMONIC 1V rms TPC 2. Harmonic Distortion vs. Frequency, R1 = R2 = 1 kΩ SUPPL Y VOL T AGE – /H11550V MAGNITUDE OF THE OUTPUT VOL T AGE – V20 05 2 0 10 15 RL = 500/H9024 TA = 25/H11543C TPC 5. Output Voltage Swing vs. Supply Voltage FREQUENCY – Hz OUTPUT IMPEDANCE – /H9024 100 0.01 10k 100k 100M 1M 10M 0.1 /H115505V SUPPLIES TPC 8. Output Impedance vs. Frequency, Gain = –1, R1 = R2 = 1 kΩ TEMPERA TURE – /H11543C TRANSRESIST ANCE – M/H9024 –50 150 0 50 100 RL = RL = 500/H9024 RL = 50/H9024 TPC 3. Transresistance vs. Temperature TEMPERA TURE – /H11543C SUPPL Y CURRENT – mA –60 0 20 –40 –20 40 60 80 100 120 140 VS = /H1155015V VS = /H115505V TPC 6. Quiescent Supply Current vs. Temperature and Supply Voltage TEMPERA TURE – /H11543C –3dB BANDWIDTH – MHz –60 02 0 –40 –20 40 60 80 100 120 140 VS = /H1155015V VS = /H115505V TPC 9. –3 dB Bandwidth vs. Temperature, Gain = –1, R1 = R2 = 1 kΩ AD844–Typical Characteristics(TA = 25/H11543C and VS = /H1155015 V, unless otherwise noted)

REV. D AD844 –5– +VS 4.7/H9024 0.22/H9262F VOUT CLRL 0.22/H9262F 4.7/H9024 VIN –VS AD844 TPC 10. Inverting Amplifier, Gain of –1 (R1 = R2) FREQUENCY – MHz PHASE – Degrees –180 05 0 25 –210 –240 –270 –300 –330 R1 = R2 = 500/H9024 R1 = R2 = 1k/H9024 TPC 12. Phase vs. Frequency Gain = –1, RL = 500 Ω, CL = 0 pF FREQUENCY – Hz GAIN – dB 100k 1M 100M 10M –24 –12 –18 R1 = R2 = 500/H9024 R1 = R2 = 1k/H9024 TPC 11. Gain vs. Frequency for Gain = –1, RL = 500 Ω, CL = 0 pF TPC 13. Large Signal Pulse Response, Gain = –1, R1 = R2 = 1 kΩ TPC 14. Small Signal Pulse Response, Gain = –1, R1 = R2 = 1 kΩ Inverting Gain-of-1 AC Characteristics Inverting Gain-of-10 AC Characteristics FREQUENCY – Hz GAIN – dB 100k 1M 100M 10M RL = 500/H9024 RL = 50/H9024 TPC 16. Gain vs. Frequency, Gain = –10 +VS 4.7/H90240.22/H9262F 50/H9024 VOUT CLRL 0.22/H9262F 4.7/H9024 VIN –VS AD844 500/H9024 TPC 15. Gain of –10 Amplifier FREQUENCY – MHz PHASE – Degrees –180 05 0 25 –210 –240 –270 –300 –330 RL = 500/H9024 RL = 50/H9024 TPC 17. Phase vs. Frequency, Gain = –10

REV. D AD844 –6– Inverting Gain-of-10 Pulse Response TPC 18. Large Signal Pulse Response, Gain = –10, RL = 500 Ω TPC 19. Small Signal Pulse Response, Gain = –10, RL = 500 Ω FREQUENCY – Hz GAIN – dB 100k 1M 100M 10M RL = 500/H9024 RL = 50/H9024 TPC 21. Gain vs. Frequency, Gain = +10 FREQUENCY – MHz PHASE – Degrees –180 05 0 25 –210 –240 –270 –300 –330 RL = 500/H9024 RL = 50k/H9024 TPC 22. Phase vs. Frequency, Gain = +10 Noninverting Gain-of-10 AC Characteristics +VS 450/H9024 0.22/H9262F 50/H9024 VOUT CL RL 4.7/H9024 VIN –VS 0.22/H9262F 4.7/H9024 AD844 TPC 20. Noninverting Gain of +10 Amplifier TPC 24. Small Signal Pulse Response, Gain = +10, RL = 500 Ω TPC 23. Noninverting Amplifier Large Signal Pulse Response, Gain = +10, RL = 500 Ω

Figure 13. DAC Amplifier Full-Scale Transient Response

20 MHz Variable Gain Amplifier

X. The gain at VX = 3.16 V is +4 dB.

0 TO 3V

A 50/H9024 OR 75/H9024 RESISTOR TO GROUND. Figure 14. 20 MHz VGA Using the AD539 multiplier will operate from supplies between ±4.5 V and ±16.5 V. width of 5 MHz and a maximum gain of 16 dB. Figure 12. High Speed DAC Amplifier

REV. D AD844 –14– OUTLINE DIMENSIONS Dimensions shown in inches and (mm). Mini-DIP (N) Package (N-8) SEATING PLANE 0.060 (1.52) 0.015 (0.38)0.210 (5.33) MAX 0.022 (0.558) 0.014 (0.356) 0.160 (4.06) 0.115 (2.93) 0.070 (1.77) 0.045 (1.15) 0.130 (3.30) MIN 1 4 PIN 1 0.280 (7.11) 0.240 (6.10) 0.100 (2.54) BSC 0.430 (10.92) 0.348 (8.84) 0.195 (4.95) 0.115 (2.93) 0.015 (0.381) 0.008 (0.204) 0.325 (8.25) 0.300 (7.62) Cerdip (Q) Package (Q-8) 1 4 0.310 (7.87) 0.220 (5.59)PIN 1 0.005 (0.13) MIN 0.055 (1.4) MAX 0.100 (2.54) BSC 0.320 (8.13) 0.290 (7.37) 0.015 (0.38) 0.008 (0.20) SEA TING PLANE 0.200 (5.08) MAX 0.405 (10.29) MAX 0.150 (3.81) MIN 0.200 (5.08) 0.125 (3.18) 0.023 (0.58) 0.014 (0.36) 0.070 (1.78) 0.030 (0.76) 0.060 (1.52) 0.015 (0.38) 16-Lead SOIC (R) Package (R-16) SEATING PLANE 0.0118 (0.30) 0.0040 (0.10) 0.0192 (0.49) 0.0138 (0.35) 0.1043 (2.65) 0.0926 (2.35) 0.050 (1.27) BSC 16 9 0.4193 (10.65) 0.3937 (10.00) 0.2992 (7.60) 0.2914 (7.40)PIN 1 0.4133 (10.50) 0.3977 (10.00) 0.0125 (0.32) 0.0091 (0.23) 8/H11543 0/H11543 0.0291 (0.74) 0.0098 (0.25)/H11547 45/H11543 0.0500 (1.27) 0.0157 (0.40)

REV. D AD844 –15–

Revision History

Data Sheet changed from REV. B to REV. C.

–16– C00897–0–11/01(D) PRINTED IN U.S.A.