AD8647 Analog Devices, AD8647 Datasheet
AD8647
Specifications of AD8647
Related parts for AD8647
AD8647 Summary of contents
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... Photodiode amplifiers Datapath/mux/switch control GENERAL DESCRIPTION The AD8646 and the AD8647 are the dual, and the AD8648 is the quad, rail-to-rail, input and output, single-supply amplifiers featuring low offset voltage, wide signal bandwidth, low input voltage, and low current noise. The AD8647 also has a low power shutdown function ...
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... Changes to Ordering Guide Section ............................................ 18 Revision History: AD8646/AD8647/AD8648 2/09—Rev Rev. C Change to Supply Current Shutdown Mode (AD8647 Only) Parameter, Table 1 ............................................................................. 3 Change to Supply Current Shutdown Mode (AD8647 Only) Parameter, Table 2 ............................................................................. 5 Added Figure 50; Renumbered Sequentially .............................. 15 Updated Outline Dimensions ....................................................... 16 Changes to Ordering Guide .......................................................... 18 10/07—Revision B: Initial Combined Version Revision History: AD8646 10/07— ...
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... Logic Low Voltage (Power-Down) Logic Input Current (Per Pin) Output Pin Leakage Current DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin Settling Time Amplifier Turn-On Time (AD8647) Amplifier Turn-Off Time (AD8647) Symbol Conditions −40°C < T < +125°C A Δ ...
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... AD8646/AD8647/AD8648 Parameter NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Channel Separation Total Harmonic Distortion Plus Noise Symbol Conditions e p-p 0 kHz kHz kHz f = 100 kHz THD + N V p 600 Ω kHz −10 V Rev ...
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... Logic Low Voltage (Power-Down) Logic Input Current (Per Pin) Output Pin Leakage Current DYNAMIC PERFORMANCE Slew Rate Gain Bandwidth Product Phase Margin Settling Time Amplifier Turn-On Time (AD8647) Amplifier Turn-Off Time (AD8647) NOISE PERFORMANCE Peak-to-Peak Noise Voltage Noise Density Channel Separation Symbol Conditions ...
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... AD8646/AD8647/AD8648 ABSOLUTE MAXIMUM RATINGS Table 3. Parameter Supply Voltage Input Voltage Differential Input Voltage Output Short Circuit to GND Storage Temperature Range Operating Temperature Range Lead Temperature (Soldering 60 sec) Junction Temperature Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only ...
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... Figure 6. Input Offset Voltage vs. Input Common-Mode Voltage 1.0 1 25°C A –1000 –1500 –2000 –2500 2.0 2.5 3.0 Figure 9. Input Offset Voltage vs. Input Common-Mode Voltage Rev Page AD8646/AD8647/AD8648 200 2.5V 180 25°C A 2244 AMPLIFIERS 160 140 120 100 –2.0 – ...
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... AD8646/AD8647/AD8648 10000 25°C A 1000 100 10 1 0.1 0.001 0.01 0.1 1 LOAD CURRENT (mA) Figure 10. Output Saturation Voltage vs. Load Current 2. 1mA – –40 –25 – TEMPERATURE (°C) Figure 11. Output Saturation Voltage vs. Temperature 300 125°C ...
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... 25° –20 –40 –60 10M 100M 120 100 100k 1M Rev Page AD8646/AD8647/AD8648 PHASE Ф = 74° M GAIN 100k 1M 10M FREQUENCY (Hz) Figure 19. Open-Loop Gain and Phase vs. Frequency A = 100 ...
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... AD8646/AD8647/AD8648 100 25° 10k 100k 1M FREQUENCY (Hz) Figure 22. CMRR vs. Frequency 100 PSRR PSRR– 10k 100k FREQUENCY (Hz) Figure 23. PSRR vs. Frequency ±1.35V 25° (pF) LOAD Figure 24. Overshoot vs. Load Capacitance ...
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... Figure 31. Small-Signal Transient Response 25° 10kΩ Figure 32. Large-Signal Transient Response 0. ±2. 600Ω – 25°C A 0.06 0.05 0.04 0.03 0.02 0.01 0 100k 10 100 Figure 33. THD + Noise vs. Frequency Rev Page AD8646/AD8647/AD8648 = 100mV p- 100pF L (200ns/DIV) = 100pF L (200ns/DIV) 1k 10k 100k FREQUENCY (Hz) ...
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... AD8646/AD8647/AD8648 TIME (1s/DIV) Figure 34. 0 Voltage Noise 1000 100 100 FREQUENCY (Hz) Figure 35. Voltage Noise Density vs. Frequency 2 25°C A 2.0 1.5 1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 SUPPLY VOLTAGE (V) Figure 36. Supply Current per Amplifier vs. Supply Voltage 25°C A 0.0001 25° 10k 3 ...
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... T A –40 = 2.7V – –80 –100 –120 100 120 2. 2.7V = 1kΩ 25°C Rev Page AD8646/AD8647/AD8648 = (dB log (V /100 = 2kΩ 20Ω OUT IN = –100 V+ V– = 25°C 200Ω V– V– V+ ...
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... AD8646/AD8647/AD8648 100 0.1 0.01 –40 –25 – TEMPERATURE (°C) Figure 46. Supply Current with Op-Amp Shutdown vs. Temperature 100 10 1 0.1 0. 110 125 –40 Figure 47. Supply Current with Op-Amp Shutdown vs. Temperature Rev Page –25 – TEMPERATURE (° ...
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... THEORY OF OPERATION POWER-DOWN OPERATION The shutdown function of the AD8647 is referenced to the negative supply voltage of the operational amplifier. A logic level high (> 2.0 V) enables the device, while a logic level low (< 0.8 V) disables the device and places the output in a high impedance condition. Several outputs can be wire-OR’ thus eliminating a multiplexer ...
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... AD8646/AD8647/AD8648 OUTLINE DIMENSIONS 0.25 (0.0098) 0.10 (0.0040) COPLANARITY IDENTIFIER 5.00 (0.1968) 4.80 (0.1890 6.20 (0.2441) 4.00 (0.1574) 1 5.80 (0.2284) 3.80 (0.1497) 4 1.27 (0.0500) BSC 1.75 (0.0688) 1.35 (0.0532) 8° 0° 0.51 (0.0201) 0.10 0.31 (0.0122) 0.25 (0.0098) SEATING 0.17 (0.0067) PLANE COMPLIANT TO JEDEC STANDARDS MS-012-AA CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN ...
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... Figure 53. 10-Lead Mini Small Outline Package [MSOP] (RM-10) Dimensions shown in millimeters 5.10 5.00 4. 4.50 6.40 4.40 BSC 4. PIN 1 0.65 BSC 1.05 1.20 1.00 0.20 MAX 0.80 0.09 0.15 SEATING 0.05 0.30 PLANE COPLANARITY 0.19 0.10 COMPLIANT TO JEDEC STANDARDS MO-153-AB-1 Figure 54. 14-Lead Thin Shrink Small Outline Package [TSSOP] (RU-14) Dimensions shown in millimeters Rev Page AD8646/AD8647/AD8648 15° MAX 0.70 0.23 0.55 0.13 0.40 0.75 8° 0.60 0° 0.45 ...
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... AD8646WARZ-R7 −40°C to +125°C AD8646WARMZ-RL −40°C to +125°C AD8646WARMZ-R7 −40°C to +125°C AD8647ARMZ −40°C to +125°C AD8647ARMZ-REEL −40°C to +125°C AD8648ARZ −40°C to +125°C AD8648ARZ-REEL −40°C to +125°C AD8648ARZ-REEL7 −40°C to +125°C AD8648ARUZ − ...
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... NOTES AD8646/AD8647/AD8648 Rev Page ...
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... AD8646/AD8647/AD8648 NOTES ©2006–2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06527-0-4/10(D) Rev Page ...