AD526 Analog Devices, Inc., AD526 Datasheet
AD526
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AD526 Summary of contents
Page 1
... The force/sense configuration preserves accuracy when the output is connected to remote or low impedance loads. The AD526 is offered in one commercial ( +70 C) grade, J, and three industrial grades and C, which are specified from – +85 C. The S grade is specified from – +125 C ...
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... C unless otherwise noted) A AD526B/S AD526C Min Typ Max Min Typ 0.01 0.02 0.02 0.04 0.04 0.5 2.0 0.5 0.5 2.0 0.5 0.5 3.0 0.5 0.5 5.0 0.5 1.0 5.0 1.0 0.02 0.03 0.03 0.05 0.05 0.005 0.001 0.001 0.001 0.001 0.01 ...
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... AD526AD AD526BD AD526SD –3– AD526B/S AD526C Typ Max Min Typ Max 4.0 4.0 2.0 2.0 1.5 1.5 0.65 0.65 0.35 0.35 2.1 4 2.1 4 2.5 5 2.5 5 2.7 5 2 ...
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... AD526–Typical Performance Characteristics SUPPLY VOLTAGE – V Figure 1. Output Voltage Swing vs. Supply Voltage 100nA 10nA 1nA 100pA 10pA 1pA –60 – 100 140 TEMPERATURE – C Figure 4. Input Bias Current vs. Temperature 25 20 GAIN = 8, 16 ...
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... Temperature, Gain = 1 Figure 14. Small Signal Pulse Response Figure 17. Large Signal Pulse Response and Settling Time –5– AD526 Figure 12. Wideband Output Noise (Amplified by 10) Figure 15. Large Signal Pulse Response and Settling Time Figure 18. Small Signal Pulse Response ...
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... AD526 Figure 19. Large Signal Pulse Response and Settling Time Figure 22. Small Signal Pulse Response, Gain = 16 100 10k 100k 1M 10M FREQUENCY – Hz Figure 25. Output Impedance vs. Frequency *For Settling Time Traces, 0.01% = 1/2 Vertical Division **Scope Traces are: Top: Output Transition; Middle: Output Settling; Bottom: Digital Input. ...
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... V ERROR 2k + POT. AD711 – 1pF 5.6k 5pF – IN6263 5k AD3554 + –15V +15V Figure 31. Settling Time Test Circuit –7– AD526 TEKTRONIX 7000 SERIES SCOPE 7A13 PREAMP 5MHz 160 e o p-p TEKTRONIX 1pF 7000 SERIES SCOPE 7A13 V 5 ERROR – PREAMP ...
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... B is tied high and both CS and CLK are allowed to float low. After the gain codes are changed, the AD526’s output voltage typically requires 5 settle to within 0.01% of the final value. Figures show the performance of the AD526 for positive gain code changes. A2 ...
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... Figure 35. AD526 Timing REV. D DIGITAL FEEDTHROUGH With either CS or CLK or both held high, the AD526 gain state will remain constant regardless of the transitions at the A0, A1 inputs. However, high speed logic transitions will un- avoidably feed through to the analog circuitry within the AD526 Condition causing spikes to occur at the signal output ...
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... CS CLK A1 A0 LOGIC AND LATCHES GAIN NETWORK AD526 Utilizing the force and sense outputs of the AD526, as shown in Figure 38, avoids signal drops along etch runs to low impedance loads. 0.1 F 0.1 F AD574 12-BIT A/D CONVERTER 0.1 F +5V OUT FORCE ...
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... If gains from 1 to 128 are needed, no additional components are required. This is accomplished by using the B pin as shown in Figure 38. When the B pin is low, the AD526 is held in a unity gain stage independent of the other gain code values. OFFSET NULLING WITH A D/A CONVERTER ...
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... LSB corresponds to the LSB of the monolithic converter divided by the maximum gain of the PGA. The floating point A/D converter has a full-scale range maximum gain of 16 V/V from the AD526 and a 12-bit A/D converter; this produces: LSB = ([FSR/2 dynamic range in dBs is based on the log of the ratio of the full-scale input range to the LSB ...
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... The software is used to set the gain of the AD526. In operation the signal is converted, and if the MSB of the AD574 is not equal to a Logical 1, the gain is increased by binary steps the maximum gain. This maxi- mizes the full-scale range of the conversion process and insures a wide dynamic range ...
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... AD526 16-Lead Plastic DIP Package (N-16) 0.87 (22.1) MAX 16 9 0.25 0.31 (6.25) (7.87 PIN 1 0.035 (0.89) 0.18 0.125 (3.18) (4.57) MIN SEATING 0.018 0.100 0.033 PLANE (0.46) (2.54) (0.84) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 16 0.040R 0.310 0.01 0.3 (7.62) (7.874 0.254) 0.18 (4.57) MAX 0.011 (0.28) 0.095 (2.41) 0.180 0.03 (4.57 0.762) 0.047 0.007 (1.19 0.18) –14– 16-Lead Sided-Brazed Ceramic Package (D-16) ...