OP297 Analog Devices, OP297 Datasheet
OP297
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OP297 Summary of contents
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... Input bias current of the OP297 is under 100 pA at 25°C and is under 450 pA over the military temperature range per amplifier. This part can operate with supply voltages as low as ± ...
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... Changes to Figure 16 ........................................................................ 6 Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 14 2/06—Rev Rev. F Updated Format .................................................................. Universal Changes to Features .......................................................................... 1 Deleted OP297 Spice Macro Model Section ................................. 9 Updated Outline Dimensions ....................................................... 13 Changes to Ordering Guide .......................................................... 14 7/03—Rev Rev. E Changes to TPCs 13 and 16 ............................................................ 4 Edits to Figures 12 and 14 ............................................................... 8 Changes to Nonlinear Circuits Section ......................................... 8 ...
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... OP297F OP297G Max Min Typ Max Min Typ 100 80 300 110 0.6 0.5 2.0 0.6 450 80 750 80 ±450 +80 ±750 +80 1000 2500 800 2500 ±13 ± ...
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... Differential Input Voltage Output Short-Circuit Duration Storage Temperature Range Z-Suffix P-Suffix, S-Suffix Operating Temperature Range OP297E (Z-Suffix) OP297F, OP297G (P-Suffix, S-Suffix) Junction Temperature Z-Suffix P-Suffix, S-Suffix Lead Temperature (Soldering, 60 sec) 1 For supply voltages less than ±20 V, the absolute maximum input voltage is equal to the supply voltage ...
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... CM I – –15 –10 – COMMON-MODE VOLTAGE (V) ± 25° ±15V ±2 ± TIME AFTER POWER APPLIED (Minutes) Figure 10. Input Offset Voltage Warm-Up Drift OP297 V = ±15V 100 125 ...
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... OP297 10k BALANCED OR UNBALANCED V = ±15V 100 –55°C ≤ T ≤ +125° +25° 100 1k 10k SOURCE RESISTANCE (Ω) Figure 11. Effective Offset Voltage vs. Source Resistance 100 BALANCED OR UNBALANCED V = ±15V 0.1 100 1k 10k 100k SOURCE RESISTANCE (Ω) Figure 12 ...
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... ±15V VCL 1% THD f = 1kHz OUT 10 100 1k LOAD RESISTANCE (Ω) Figure 21. Output Swing vs. Load Resistance THD f OUT R 1k 10k FREQUENCY (Hz) Figure 22. Maximum Output Swing vs. Frequency OP297 10 15 10k = 25°C = ±15V VCL = 1kHz = 10kΩ L 100k ...
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... OP297 100 80 GAIN 60 PHASE –20 –40 100 1k 10k 100k FREQUENCY (Hz) Figure 23. Open-Loop Gain, Phase vs. Frequency 25° ±15V VCL V = 100mV p-p OUT –EDGE 100 LOAD CAPACITANCE (pF) Figure 24. Small Signal Overshoot vs. Load Capacitance V = ±15V 30pF ...
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... The output typically swings to within the rails when using a 10 kΩ load. AC PERFORMANCE The ac characteristics of the OP297 are highly stable over its full operating temperature range. Unity gain small signal response is shown in Figure 26. Extremely tolerant of capacitive loading on the output, the OP297 displays excellent response with 1000 pF loads (see Figure 27) ...
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... OP297 OPEN-LOOP GAIN LINEARITY The OP297 has both an extremely high gain of 2000 V/mV minimum and constant gain linearity. This enhances the precision of the OP297 and provides for very high accuracy in high closed-loop gain applications. Figure 30 illustrates the typical open-loop gain linearity of the OP297 over the military temperature range ...
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... MΩ. The high gain and low TCV of the OP297 ensure accurate operation with microvolt OS input signals. In this circuit, the input always appears as a common-mode signal to the op amps. The CMR of the OP297 exceeds 120 dB, yielding an error of less than 2 ppm. +15V C2 0.1µF R1 1kΩ ...
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... OP297 NONLINEAR CIRCUITS Due to its low input bias currents, the OP297 is an ideal log amplifier in nonlinear circuits such as the square and square root circuits shown in Figure 35 and Figure 36. Using the squaring circuit of Figure example, the analysis begins by writing a voltage loop equation across Transistor Q1, Transistor Q2, Transistor Q3, and Transistor Q4. ⎛ ...
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... REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. Figure 38. 8-Lead Ceramic Dual In-Line Package [CERDIP] Z-Suffix (Q-8) Dimensions shown in inches and (millimeters) Rev Page 0.325 (8.26) 0.310 (7.87) 0.300 (7.62) 0.195 (4.95) 0.130 (3.30) 0.115 (2.92) 0.014 (0.36) 0.010 (0.25) 0.008 (0.20) 0.430 (10.92) MAX 0.320 (8.13) 0.290 (7.37) 0.015 (0.38) 15° 0.008 (0.20) 0° OP297 ...
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... OP297FSZ-REEL −40°C to +85°C OP297FSZ-REEL7 1 −40°C to +85°C OP297GP −40°C to +85°C 1 OP297GPZ −40°C to +85°C OP297GS −40°C to +85°C OP297GS-REEL −40°C to +85°C OP297GS-REEL7 −40°C to +85°C 1 OP297GSZ −40°C to +85°C 1 OP297GSZ-REEL − ...
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... NOTES Rev Page OP297 ...
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... OP297 NOTES ©2008 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D00300-0-4/08(G) Rev Page ...