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AD7677 Fiches technique(PDF) 3 Page - Analog Devices |
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AD7677 Fiches technique(HTML) 3 Page - Analog Devices |
3 / 23 page REV. –3– AD7665 Parameter Conditions Min Typ Max Unit POWER SUPPLIES (Continued) Power Dissipation 6, 7 444 kSPS Throughput 8 64 74 mW 100 SPS Throughput 8 15 µW 570 kSPS Throughput 5 93 107 mW In Power-Down Mode 9 7µW TEMPERATURE RANGE 10 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. 5In Warp Mode. 6Tested in Parallel Reading Mode. 7Tested with the 0 V to 5 V range and V IN – VINGND = 0 V. See Power Dissipation section. 8In Impulse Mode. 9With OVDD below DVDD + 0.3 V and all digital inputs forced to DVDD or DGND, respectively. 10Contact 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. 3For this range the input is high impedance. TIMING SPECIFICATIONS Parameter Symbol Min Typ Max Unit Refer to Figures 11 and 12 Convert Pulsewidth t1 5ns Time between Conversions t2 1.75/2/2.25 Note 1 µs (Warp Mode/Normal Mode/Impulse Mode) CNVST LOW to BUSY HIGH Delay t3 30 ns BUSY HIGH All Modes Except in Master Serial Read after t4 0.75/1/1.25 µs Convert Mode (Warp Mode/Normal Mode/Impulse Mode) Aperture Delay t5 2ns End of Conversion to BUSY LOW Delay t6 10 ns Conversion Time (Warp Mode/Normal Mode/Impulse Mode) t7 0.75/1/1.25 µs Acquisition Time t8 1µs RESET Pulsewidth t9 10 ns Refer to Figures 13, 14, 15, and 16 (Parallel Interface Modes) CNVST LOW to DATA Valid Delay t10 0.75/1/1.25 µs (Warp Mode/Normal Mode/Impulse Mode) DATA Valid to BUSY LOW Delay t11 20 ns Bus Access Request to DATA Valid t12 40 ns Bus Relinquish Time t13 515 ns (–40 C to +85 C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.) C |
Numéro de pièce similaire - AD7677 |
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Description similaire - AD7677 |
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