AD629 Analog Devices, AD629 Datasheet
AD629
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AD629 Summary of contents
Page 1
... V common-mode voltage range and has inputs that are protected from common-mode or differential mode transients up to ± 500 V. The AD629 has low offset, low offset drift, low gain error drift, as well as low common-mode rejection drift, and excellent CMRR over a wide frequency range. ...
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... Stable Operation p-p OUT 0.01 Step OUT 0.1 Step OUT 0.01 Step DIFF OUT MIN MAX MIN MAX –2– AD629A AD629B Min Typ Max Min Typ 1 1 0.01 0.05 0. 0 100 90 110 77 ...
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... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD629 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality ...
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... AD629 –Typical Performance Characteristics 100 100 1k 10k 100k FREQUENCY – Hz Figure 5. Common-Mode Rejection Ratio vs. Frequency 2mV/DIV V = 18V 15V 12V 10V S –20 –16 –12 –8 – – Volts OUT Figure 6. Typical Gain Error Normalized @ V Output Voltage Operating Range vs. Supply Voltage Ω ...
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... Figure 15. Output Voltage Operating Range vs. Output L Current; V 11.5 10.5 9.5 8.5 7.5 6.5 –9.0 –9.5 –10.0 –10.5 –11.0 1.2 1.8 2.4 3.0 Figure 16. Output Voltage Operating Range vs. Output = ± Ω Current; V –5– AD629 –8 –6 –4 – – Volts OUT = ± – 15V S – ...
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... AD629 +85 C 4.5 3.5 –40 C 2.5 + 0.5 S –2.0 –2.5 –40 C –3.0 –3.5 +25 C +85 C –4 OUTPUT CURRENT – mA Figure 17. Output Voltage Operating Range vs. Output = ± Current 120 +V S 110 –V S 100 0 100 FREQUENCY – Hz Figure 18 ...
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... Figure 28. Typical Distribution of +1 Gain Error; Package Option N-8 –7– AD629 5V/DIV 0V V OUT –10V OUTPUT ERROR 1mV = 0.01% 10 s/DIV 1mV/DIV = 2 k Ω 2180 n 200 PCS. FROM 10 ASSEMBLY LOTS – ...
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... Pin connect pin and should be left open. Single Supply Operation Figure 30 shows the connections for operating the AD629 with a single supply. Because the output can swing to within only about either rail necessary to apply an offset to the output. This can be conveniently done by connecting REF(+) and REF(– ...
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... S Figure 33. Compensating for Large Sense Resistors Output Filtering A simple 2-pole low-pass Butterworth filter can be implemented using the OP177 at the output of the AD629 to limit noise at the output, as shown in Figure 34. Table II gives recommended / component values for various corner frequencies, along with the CM peak-to-peak output noise for each case. REF(– ...
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... AD629 Output Current and Buffering The AD629 is designed to drive loads of 2 kΩ to within the rails, but can deliver higher output currents at lower output voltages (see Figure 15). If higher output current is required, the AD629’s output should be buffered with a precision op amp such as the OP113 as shown in Figure 35. This op amp can swing to within either rail while driving a load as small as 600 Ω ...
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... This application is similar to the previous example except that the sensed load current is from an amplifier with an ac common- mode component of ± 100 V (frequency = 500 Hz) present on the shunt (Figure 38). All other conditions are the same as Table IV. AD629 vs. INA117 AC Error Budget Example 2 (V Error Source AD629 ACCURACY 25° ...
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... AD629 8-Lead Plastic DIP (N-8) 0.430 (10.92) 0.348 (8.84 0.280 (7.11) 0.240 (6.10 0.325 (8.25) PIN 1 0.100 (2.54) 0.300 (7.62) BSC 0.060 (1.52) 0.210 0.015 (0.38) (5.33) MAX 0.130 0.160 (4.06) (3.30) MIN 0.115 (2.93) 0.022 (0.558) 0.070 (1.77) SEATING PLANE 0.014 (0.356) 0.045 (1.15) OUTLINE DIMENSIONS Dimensions shown in inches and (mm). 0.1574 (4.00) 0.1497 (3.80) PIN 1 0.195 (4.95) ...