ADA4841-2 Analog Devices, ADA4841-2 Datasheet
ADA4841-2
Specifications of ADA4841-2
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ADA4841-2 Summary of contents
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... The ADA4841-1/ADA4841-2 output can swing to less than either rail. The input common-mode voltage range extends down to the negative supply. The ADA4841-1/ ADA4841-2 can drive capacitive load with minimal peaking. The ADA4841-1/ADA4841-2 provide the performance required to efficiently support emerging 16-bit to 18-bit ADCs and are ideal for portable instrumentation, high channel count, industrial measurement, and medical applications ...
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... Changes to Table 1............................................................................ 3 Changes to Table 2............................................................................ 4 Changes to Table 3............................................................................ 5 Changes to Input Protection Section ........................................... 15 Changes to Ordering Guide .......................................................... 20 10/05—Rev Rev. B Added ADA4841-2.............................................................Universal Changes to General Description and Features ............................. 1 Changes to Table 1............................................................................ 3 Changes to Table 2............................................................................ 4 Changes to Table 3............................................................................ 5 Changes to Table 4, Table 5, and Figure 4 ..................................... 6 Headroom Considerations ...
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... Input Resistance, Common Mode Input Resistance, Differential Mode Input Capacitance, Common Mode Input Capacitance, Differential Mode Input Common-Mode Voltage Range Common-Mode Rejection Ratio (CMRR) MATCHING CHARACTERISTICS (ADA4841-2) Input Offset Voltage Input Bias Current POWER DOWN PIN (ADA4841-1) POWER DOWN Voltage POWER DOWN Voltage ...
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... Input Resistance, Common Mode Input Resistance, Differential Mode Input Capacitance, Common Mode Input Capacitance, Differential Mode Input Common-Mode Voltage Range Common-Mode Rejection Ratio (CMRR) MATCHING CHARACTERISTICS (ADA4841-2) Input Offset Voltage Input Bias Current POWER DOWN PIN (ADA4841-1) POWER DOWN Voltage POWER DOWN Voltage ...
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... Input Resistance, Common Mode Input Resistance, Differential Mode Input Capacitance, Common Mode Input Capacitance, Differential Mode Input Common-Mode Voltage Range Common-Mode Rejection Ratio (CMRR) MATCHING CHARACTERISTICS (ADA4841-2) Input Offset Voltage Input Bias Current POWER DOWN PIN (ADA4841-1) POWER DOWN Voltage POWER DOWN Voltage ...
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... LFCSP_WD 103 MAXIMUM POWER DISSIPATION The maximum safe power dissipation for the ADA4841-1/ ADA4841-2 is limited by the associated rise in junction temperature ( the die. At approximately 150°C, which is J the glass transition temperature, the plastic changes its properties. Even temporarily exceeding this temperature limit ...
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... FREQUENCY (MHz) Figure 8. Small Signal Frequency Response vs. Gain 20pF 20pF WITH 100Ω SNUBBER 0pF 10pF 10 100 G = – 100 Rev Page ADA4841-1/ADA4841 –40° 20mV p +125°C –3 –6 –9 0 FREQUENCY (MHz) Figure 9 ...
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... ADA4841-1/ADA4841-2 140 MAGNITUDE 120 100 PHASE –20 10 100 1k 10k 100k FREQUENCY (Hz) Figure 12. Open-Loop Gain and Phase vs. Frequency – p-p OUT –40 –50 –60 –70 – SECOND SECOND –90 –100 –110 –120 –130 0.01 0.1 FREQUENCY (MHz) Figure 13. Harmonic Distortion vs. Frequency for Various Gains – ...
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... Figure 22. Small Signal Transient Response for Various Capacitive Loads 0.130 TIME = 50ns/DIV 0.125 0.120 0.115 0.110 0.105 0.100 0.095 0.090 4 6 Figure 23. Small Signal Transient Response for Various Supplies Rev Page ADA4841-1/ADA4841 + + ± 0pF 10pF 20pF 47pF ...
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... ADA4841-1/ADA4841 OUT –1 Figure 24. Input Overdrive Recovery 6 V × OUT –1 Figure 25. Output Overdrive Recovery 1.5 = ± p-p OUT TIME = 100ns/DIV 1 0 –0.5 –1.0 –1.5 Figure 26. Large Signal Transient Response for Various Gains 4 ...
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... Figure 35. Input Offset Voltage vs. Temperature for Various Supplies Rev Page ADA4841-1/ADA4841 +PSR –PSR 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 33. PSR vs. Frequency 100 1k 10k 100k 1M FREQUENCY (Hz) Figure 34 ...
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... ADA4841-1/ADA4841-2 3.6 3 + + ±5V S 3.2 3.1 –40 –25 – TEMPERATURE (°C) Figure 36. Input Bias Current vs. Temperature for Various Supplies 1.6 1.5 1.4 1.3 1 ±5V S 1.1 1 + +3V S 0.8 –40 –25 – TEMPERATURE (°C) Figure 37. Supply Current vs. Temperature for Various Supplies –40 –50 – ...
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... THEORY OF OPERATION AMPLIFIER DESCRIPTION The ADA4841-1/ADA4841-2 are low power, low noise, precision voltage-feedback op amps for single or dual voltage supply operation. The ADA4841-1/ADA4841-2 are fabricated on ADI’s second generation XFCB process and feature trimmed supply current and offset voltage. The 2.1 nV/√Hz voltage noise (very low for a 1.1 mA supply current amplifier), 40 μ ...
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... SOURCE RESISTANCE (Ω) Figure 41. RTI Noise vs. Source Resistance HEADROOM CONSIDERATIONS The ADA4841-1/ADA4841-2 are designed to provide maximum input and output signal ranges with 16-bit to 18-bit dc linearity. As the input or output headroom limits are reached, the signal linearity degrades. The input stage positive limit is almost exactly a volt below the positive supply at room temperature ...
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... S– INPUT PROTECTION 10 100 The ADA4841-1/ADA4841-2 are fully protected from ESD events, withstanding human body model ESD events of 2.5 keV and charge device model events of 1 keV with no measured ) are both at IP performance degradation. The precision input is protected is swept S with an ESD network between the power supplies and diode clamps across the input device pair, as shown in Figure 47 ...
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... ADA4841-1/ADA4841-2 POWER-DOWN OPERATION Figure 48 shows the ADA4841-1 power-down circuitry. If the POWER DOWN pin is left unconnected, then the base of the input PNP transistor is pulled high through the internal pull-up resistor to the positive supply, and the part is turned on. Pulling the POWER DOWN pin approximately 1.7 V below the positive supply turns the part off, reducing the supply current to approximately 40 μ ...
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... AD7685 4.096V RECONSTRUCTION FILTER The ADA4841-1/ADA4841-2 can also be used as a reconstruction filter at the output of DACs for suppression of the sampling frequency. The filter shown in Figure two-pole, 500 kHz Sallen-Key LPF with a fixed gain +1.6. ...
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... GROUND PLANE It is important to avoid ground in the areas under and around the input and output of the ADA4841-1/ADA4841-2. Stray capacitance created between the ground plane and the input and output pads of a device are detrimental to high speed amplifier performance. Stray capacitance at the inverting input, along with the amplifier input capacitance, lowers the phase margin and can cause instability ...
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... BSC 1.90 BSC 0.20 MAX 1.45 MAX 0.08 MIN 0.95 MIN SEATING 0.50 MAX PLANE 0.30 MIN COMPLIANT TO JEDEC STANDARDS MO-178-AB Figure 54. 6-Lead Small Outline Transistor Package [SOT-23] (RJ-6) Dimensions shown in millimeters Rev Page ADA4841-1/ADA4841-2 3.20 3.00 2.80 5. 4.90 4. PIN 1 0.65 BSC 15° MAX 1.10 MAX 0.15 0.23 6° 0.40 0.05 0.09 0° 0.25 0.10 COMPLIANT TO JEDEC STANDARDS MO-187-AA Figure 53 ...
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... ADA4841-2YRZ −40°C to +125°C ADA4841-2YRZ-R7 −40°C to +125°C ADA4841-2YRZ-RL −40°C to +125°C ADA4841-2YCPZ-R2 −40°C to +125°C ADA4841-2YCPZ-R7 −40°C to +125°C ADA4841-2YCPZ-RL −40°C to +125°C ADA4841-1YR-EBZ −40°C to +125°C ADA4841-1YRJ-EBZ −40°C to +125°C ADA4841-2YRM-EBZ − ...