AD8225-EVALZ Analog Devices Inc, AD8225-EVALZ Datasheet
AD8225-EVALZ
Specifications of AD8225-EVALZ
Related parts for AD8225-EVALZ
AD8225-EVALZ Summary of contents
Page 1
... Operating on either single or dual supplies, the fixed gain of 5 and wide input common-mode voltage range make the AD8225 well suited for patient monitoring applications. The AD8225 is packaged in an 8-lead SOIC package and is specified over the standard industrial temperature range, –40°C to +85°C. ...
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... AD8225–SPECIFICATIONS Parameter GAIN Gain Gain Error Nonlinearity vs. Temperature OFFSET VOLTAGE (RTI) Offset Voltage vs. Temperature vs. Supply (PSRR) INPUT Input Operating Impedance Differential Common Mode Input Voltage Range (Common-Mode) vs. Temperature Input Bias Current vs. Temperature Input Offset Current vs. Temperature Common-Mode Rejection Ratio OUTPUT Operating Voltage Range vs ...
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... OUT 7 V Step 7 V Step 5 0 Spectral Density, 1 kHz 0 Spectral Density, 1 kHz INT REF –V + 0.9 S 0.999 1.7 –40 –3– AD8225 Typ Max Unit 5 V/V +0.05 +0.1 % ± ppm 2 10 ± ppm/° ±µV 125 325 ±µV/°C 2 ...
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... AD8225 SPECIFICATIONS (T A Parameter GAIN Gain Gain Error Nonlinearity vs. Temperature OFFSET VOLTAGE (RTI) Offset Voltage vs. Temperature vs. Supply INPUT Input Operating Impedance Differential Common Mode Input Voltage Range (Common-Mode) vs. Temperature Input Bias Current vs. Temperature Input Offset Current vs. Temperature Common-Mode Rejection Ratio OUTPUT Operating Voltage Range vs ...
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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 AD8225 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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... AD8225–Typical Performance Characteristics –140 –120 –100 –80 –60 –40 – INPUT OFFSET VOLTAGE – V TPC 1. Typical Distribution of Input Offset Voltage, = ± –200 –100 0 100 200 300 400 INPUT BIAS CURRENT – pA TPC 2. Typical Distribution of Input Bias Current, = ± –500 –400 – ...
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... TPC 12. CMV Range vs. V –7– AD8225 10 100 1k 10k FREQUENCY – Hz TPC 10. CMR vs. Frequency, RTI – TEMPERATURE – C TPC 11. CMRR vs. Temperature V = 15V –10 –5 5 OUTPUT VOLTAGE – V ...
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... AD8225 OUTPUT VOLTAGE – V TPC 13. CMV vs Single Supply OUT 140 120 100 0 100 1k FREQUENCY – Hz TPC 14. PSRR vs. Frequency, RTI –10 –20 –30 –40 –50 –60 100 1k 10k 100k FREQUENCY – Hz TPC 15. Small Signal Frequency Response 200 mV p-p OUT –10 –20 –30 – ...
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... TPC 24 –9– AD8225 0.001% 0.01 STEP SIZE – V TPC 22. Settling Time vs. Step Size 100mV 2V 100 –10 0 OUTPUT VOLTAGE – V TPC 23. Gain Nonlinearity +85 C +25 C – ...
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... AD8225 Test Circuits G = 100 AD797 AD8225 Test Circuit Voltage Noise Test G = 100 LPF SCOPE –10– 101 AD829 100 20k 2k AD8225 20 2k Test Circuit 2. Settling Time to 0.01% REV. A ...
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... All that is required is a voltage to current conversion at the source, and an I-to-V conversion at the other 3k V end to reverse the process. REF 15k Figure 5 illustrates how the AD8225 may be used as the trans –V S mitter and receiver in a current loop system. The full-scale output is 5 mA. ...
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... Differential inputs offer an inherent 6 dB improvement in S/N ratio and resultant bit resolution. These advantages are easy to realize using a pair of AD8225s. AD8225s can be configured to drive an ADC with differential inputs by using either single-ended or differential inputs to the AD8225s. Figure 7 shows the circuit connections for a differen- tial input ...
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... REV. A Figure 10. EKG Waveform Using Circuit of Figure 9 Benefits of Fast Slew Rates At 5 V/µs, the slew rate of the AD8225 is as fast as many op amp circuits. This is an advantage in systems applications using multiple sensors. For example, an analog multiplexer (see Figure 11) may be used to select pairs of leads connected to several sensors. If ...
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... AD8225 Evaluation Board Figure schematic of an evaluation board available for the AD8225. The board is shipped with an AD8225 already installed and tested. The user need only connect power and an input to conduct measurements. The supply may be configured for dual C1 0 100 + GND W4 100 C3 – ...
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... SEATING 0.10 0.19 (0.0075) PLANE COMPLIANT TO JEDEC STANDARDS MS-012AA 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 –15– AD8225 0.50 (0.0196) 45 0.25 (0.0099 1.27 (0.0500) 0.41 (0.0160) ...
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... AD8225 Revision History Location 2/03—Data Sheet changed from REV REV. A. Updated ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Change to TPC Change to TPC 20 caption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Edit to Precision V-to-I Converter section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 OUTLINE DIMENSIONS updated . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 –16– Page REV. A ...