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AD7671 データシート(PDF) 3 Page - Analog Devices |
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AD7671 データシート(HTML) 3 Page - Analog Devices |
3 / 24 page REV. B –3– AD7663 TIMING SPECIFICATIONS Parameter Symbol Min Typ Max Unit Refer to Figures 11 and 12 Convert Pulsewidth t1 5ns Time between Conversions t2 4µs CNVST LOW to BUSY HIGH Delay t3 30 ns BUSY HIGH All Modes Except in t4 1.25 µs Master Serial Read after Convert Mode Aperture Delay t5 2ns End of Conversion to BUSY LOW Delay t6 10 ns Conversion Time t7 1.25 µs Acquisition Time t8 2.75 µs RESET Pulsewidth t9 10 ns Refer to Figures 13, 14, 15, and 16 (Parallel Interface Modes) CNVST LOW to DATA Valid Delay t10 1.25 µs DATA Valid to BUSY LOW Delay t11 20 ns Bus Access Request to DATA Valid t12 40 ns Bus Relinquish Time t13 515 ns Refer to Figures 17 and 18 (Master Serial Interface Modes) 1 CS LOW to SYNC Valid Delay t14 10 ns CS LOW to Internal SCLK Valid Delay t15 10 ns CS LOW to SDOUT Delay t16 10 ns CNVST LOW to SYNC Delay (Read during Convert) t17 0.5 µs SYNC Asserted to SCLK First Edge Delay 2 t18 4ns Internal SCLK Period 2 t19 25 40 ns Internal SCLK HIGH 2 t20 15 ns Internal SCLK LOW 2 t21 9.5 ns SDOUT Valid Setup Time 2 t22 4.5 ns SDOUT Valid Hold Time 2 t23 2ns SCLK Last Edge to SYNC Delay 2 t24 3ns Parameter Conditions Min Typ Max Unit TEMPERATURE RANGE 8 Specified Performance TMIN to TMAX –40 +85 °C NOTES 1LSB means least significant bit. With the ±5 V input range, one LSB is 152.588 µV. 2See Definition of Specifications section. These specifications do not include the error contribution from the external reference. 3All specifications in dB are referred to a full-scale input FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified. 4The max should be the minimum of 5.25 V and DVDD + 0.3 V. 5Tested in Parallel Reading Mode. 6Tested with the 0 V to 5 V range and V IN – VINGND = 0 V. See Power Dissipation section. 7With OVDD below DVDD + 0.3 V and all digital inputs forced to DVDD or DGND, respectively. 8Contact factory for extended temperature range. Specifications subject to change without notice. Table I. Analog Input Configuration Input Voltage Input Range IND(4R) INC(4R) INB(2R) INA(R) Impedance 1 ±4 REF 2 VIN INGND INGND REF 5.85 k W ±2 REF VIN VIN INGND REF 3.41 k W ±REF VIN VIN VIN REF 2.56 k W 0 V to 4 REF VIN VIN INGND INGND 3.41 k W 0 V to 2 REF VIN VIN VIN INGND 2.56 k W 0 V to REF VIN VIN VIN VIN Note 3 NOTES 1Typical analog input impedance. 2With REF = 3 V, in this range, the input should be limited to –11 V to +12 V. 3 For this range the input is high impedance. (–40 C to +85 C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.) |
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同様の説明 - AD7671 |
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