EVAL-AD7401AEDZ Analog Devices Inc, EVAL-AD7401AEDZ Datasheet
EVAL-AD7401AEDZ
Specifications of EVAL-AD7401AEDZ
Related parts for EVAL-AD7401AEDZ
EVAL-AD7401AEDZ Summary of contents
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FEATURES 20 MHz maximum external clock rate Second-order modulator 16 bits, no missing codes ±2 LSB INL typical at 16 bits 1 μV/°C typical offset drift On-board digital isolator On-board reference ±250 mV analog input range Low power operation: 17 ...
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... Differential Inputs ...................................................................... 15 Current Sensing Applications................................................... 15 Voltage Sensing Applications.................................................... 15 Digital Filter ................................................................................ 16 Applications Information .............................................................. 18 Grounding and Layout .............................................................. 18 Evaluating the AD7401A Performance ................................... 18 Insulation Lifetime ..................................................................... 18 Outline Dimensions ....................................................................... 19 Ordering Guide .......................................................................... 19 Rev Page ...
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SPECIFICATIONS DD1 DD2 1 16 MHz maximum, tested with sinc3 filter, 256 decimation rate, as defined by Verilog code, unless otherwise noted. Table 1. Parameter ...
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AD7401A Parameter LOGIC OUTPUTS Output High Voltage Output Low Voltage POWER REQUIREMENTS V DD1 V DD2 5 I DD1 6 I DD2 Figure 17. Power Dissipation 1 For f > 16 MHz to 20 MHz, mark ...
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TIMING SPECIFICATIONS DD1 DD2 Table 2. 1 Parameter Limit MIN MAX MCLKIN ...
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AD7401A INSULATION AND SAFETY-RELATED SPECIFICATIONS Table 3. Parameter Input-to-Output Momentary Withstand Voltage Minimum External Air Gap (Clearance) Minimum External Tracking (Creepage) Minimum Internal Gap (Internal Clearance) Tracking Resistance (Comparative Tracking Index) Isolation Group REGULATORY INFORMATION Table CSA ...
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DIN V VDE V 0884-10 (VDE V 0884-10):2006-12 INSULATION CHARACTERISTICS This isolator is suitable for reinforced electrical isolation only within the safety limit data. Maintenance of the safety data is ensured by means of protective circuits. Table 5. Description INSTALLATION ...
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AD7401A ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. All voltages are relative to A their respective ground. Table 6. Parameter V to GND DD1 GND DD2 2 Analog Input Voltage to GND 1 Digital Input ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 8. Pin Function Descriptions Pin No. Mnemonic Description Supply Voltage, 4 5.5 V. This is the supply voltage for the isolated side of the AD7401A and is relative to ...
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AD7401A TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, using 25 kHz brick-wall filter, unless otherwise noted. A 100 90 80 MCLKIN = 16MHz MCLKIN = 5MHz MCLKIN = 10MHz 200mV p-p SINE WAVE ON V ...
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4. DD1 DD2 DD1 DD2 200 MCLKIN = 16MHz MCLKIN = 10MHz 4. DD1 DD2 DD1 150 MCLKIN = 5MHz MCLKIN = 5MHz V = ...
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AD7401A 4.5V TO 5.25V DD1 DD2 6 MCLKIN = 16MHz MCLKIN = 10MHz 4 2 MCLKIN = 5MHz 0 –2 –4 –6 –8 V – DC INPUT (V) IN Figure 18. I vs. V − ...
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TERMINOLOGY Differential Nonlinearity (DNL) DNL is the difference between the measured and the ideal 1 LSB change between any two adjacent codes in the ADC. Integral Nonlinearity (INL) INL is the maximum deviation from a straight line passing through the ...
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AD7401A THEORY OF OPERATION CIRCUIT INFORMATION The AD7401A isolated Σ-Δ modulator converts an analog input signal into a high speed (20 MHz maximum), single-bit data stream; the time average single-bit data from the modulators is directly proportional to the input ...
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DIFFERENTIAL INPUTS The analog input to the modulator is a switched capacitor design. The analog signal is converted into charge by highly linear sampling capacitors. A simplified equivalent circuit diagram of the analog input is shown in Figure 24. A ...
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AD7401A DIGITAL FILTER The overall system resolution and throughput rate is determined by the filter selected and the decimation rate used. The higher the decimation rate, the greater the system accuracy, as illus- trated in Figure 26. However, there is ...
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Z = one sample delay MCLKOUT = modulators conversion bit rate */ always @ (posedge mclk1 or posedge reset) if (reset) begin /*initialize acc registers on reset*/ acc1 <= 0; acc2 <= 0; acc3 <= 0; end else begin /*perform ...
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... PC via the EVAL-CED1Z. The software also includes a sinc3 filter implemented on an FPGA. The evaluation board is used in conjunction with the EVAL- CED1Z board and can also be used as a standalone board. The software allows the user to perform ac (fast Fourier transform) and dc (histogram of codes) tests on the AD7401A ...
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... PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. ORDERING GUIDE Model 1 Temperature Range AD7401AYRWZ −40°C to +125°C AD7401AYRWZ-RL −40°C to +125°C EVAL-AD7401AEDZ EVAL-CED1Z RoHS Compliant Part. 10.50 (0.4134) 10.10 (0.3976 7.60 (0.2992) 7.40 (0.2913 ...
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AD7401A NOTES ©2008–2011 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07332-0-3/11(B) Rev Page ...