AD7818ARM Analog Devices Inc, AD7818ARM Datasheet
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AD7818ARM
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AD7818ARM Summary of contents
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FEATURES 10-Bit ADC with 9 s Conversion Time One (AD7818) and Four (AD7817) Single-Ended Analog Input Channels The AD7816 Is a Temperature Measurement Only Device On-Chip Temperature Sensor Resolution of 0. Error from – +85 ...
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AD7816/AD7817/AD7818 AD7817–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE 2 Signal to (Noise + Distortion) Ratio 2 Total Harmonic Distortion 2 Peak Harmonic or Spurious Noise 2 Intermodulation Distortion Second Order Terms Third Order Terms 2 Channel-to-Channel Isolation DC ACCURACY Resolution Minimum Resolution for ...
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AD7816/AD7818 –SPECIFICATIONS Parameter DYNAMIC PERFORMANCE (AD7818 Only) 2 Signal to (Noise + Distortion) Ratio 2 Total Harmonic Distortion 2 Peak Harmonic or Spurious Noise 2 Intermodulation Distortion Second Order Terms Third Order Terms 2 Channel-to-Channel Isolation DC ACCURACY (AD7818 ...
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AD7816/AD7817/AD7818–SPECIFICATIONS Parameter 7 ANALOG INPUTS Input Voltage Range Input Leakage Input Capacitance 4 LOGIC INPUTS Input High Voltage, V INH Input Low Voltage, V INL Input High Voltage, V INH Input Low Voltage, V INL Input Current Input ...
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TIMING CHARACTERISTICS Parameter A, B Versions t 2 POWER- ...
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AD7816/AD7817/AD7818 1 ABSOLUTE MAXIMUM RATINGS ( T = 25°C unless otherwise noted AGND . . . . . . . . . . . . . . . . . . . . . . . . ...
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... AD7818AR-REEL7 –40°C to +85°C AD7818ARM –40°C to +85°C AD7818ARM-REEL –40°C to +85°C AD7818ARM-REEL7 –40°C to +85°C EVAL-AD7816/ AD7817/AD7818EB * free part CAUTION 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 AD7816/AD7817/AD7818 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...
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AD7816/AD7817/AD7818 Pin Mnemonic Description CONVST 1 Logic Input Signal. The convert start signal. A 10-bit analog-to-digital conversion is initiated on the falling edge of this signal. The falling edge of this signal places the track/hold in hold mode. The track/ ...
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AD7816 AND AD7818 PIN FUNCTION DESCRIPTIONS Pin Mnemonic Description CONVST 1 Logic Input Signal. The convert start signal initiates a 10-bit analog-to-digital conversion on the falling edge of the this signal. The falling edge of this signal places the track/hold ...
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AD7816/AD7817/AD7818 The AD7816, AD7817, and AD7818 are tested using the CCIF standard where two input frequencies near the top end of the input bandwidth are used. In this case, the second and third order terms are of different significance. The ...
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MSB DB7 DB6 DB5 OVERTEMPERATURE REGISTER (DEC RESOLUTION = 1 / LSB ALARM CIRCUIT INFORMATION The AD7817 and AD7818 are single- and four-channel, 9 µs conversion time, 10-bit A/D converters with ...
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AD7816/AD7817/AD7818 4pF CONVERT PHASE - SWITCH OPEN TRACK PHASE - SWITCH CLOSED Figure 7. Equivalent Analog Input Circuit DC Acquisition Time The ADC starts a new acquisition phase at the end ...
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For example, if the result of a conversion on Channel 0 was 1000000000 (512 Dec), the ambient temperature is equal to –103°C + (512/4) = +25°C. Table II below shows some ADC codes for various temperatures. Table II. Temperature Sensor ...
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AD7816/AD7817/AD7818 0.8 0.7 0.6 AIR 0.5 0.4 FLUID 0.3 0.2 HEAT SINK 0.1 0.0 –0. TIME – secs Figure 14. Self-Heating Effect in Air, Fluid, and in Thermal Contact with a Heat Sink 0.25 0.20 ...
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CONVST BUSY CS OTI RD/ WR SCLK OUT POWER VS. THROUGHPUT Superior power performance can be achieved by using the Auto- matic Power-Down (Mode 2) at the end of a conversion (see Operating Modes section of this ...
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AD7816/AD7817/AD7818 RD/ SCLK DB7 DB6 DB5 IN CONTROL BYTE D OUT Read Operation Figure 20 shows the timing diagram for a serial read from the AD7817. CS ...
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RD/ SCLK DB7 DB6 DB5 IN OUT CONTROL BYTE Figure 21. AD7816/AD7818 Serial Interface Timing Diagram 8-Lead Standard Small Outline Package [SOIC] Narrow Body (R-8) Dimensions shown in millimeters ...
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AD7816/AD7817/AD7818 Revision History Location 9/04—Data Sheet changed from REV REV. C. Updated ORDERING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . ...
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