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ADS8694IDBT Arkusz danych(PDF) 9 Page - Texas Instruments |
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ADS8694IDBT Arkusz danych(HTML) 9 Page - Texas Instruments |
9 / 77 page ADS8694, ADS8698 www.ti.com SBAS686 – JULY 2015 Electrical Characteristics (continued) Minimum and maximum specifications are at TA = –40°C to 125°C. Typical specifications are at TA = 25°C. AVDD = 5 V, DVDD = 3 V, VREF = 4.096 V (internal), and fSAMPLE = 500 kSPS, unless otherwise noted. TEST PARAMETER TEST CONDITIONS MIN TYP MAX UNIT LEVEL(1) INTERNAL REFERENCE OUTPUT Voltage on REFIO pin V(REFIO_INT) (10) At TA = 25°C 4.095 4.096 4.097 V A (configured as output) Internal reference temperature 6 10 ppm/°C B drift C(OUT_REFIO) Decoupling capacitor on REFIO 10 22 µF B Reference voltage to ADC V(REFCAP) At TA = 25°C 4.095 4.096 4.097 V A (on REFCAP pin) Reference buffer output 0.5 1 Ω B impedance Reference buffer temperature 0.6 1.5 ppm/°C B drift Decoupling capacitor on C(OUT_REFCAP) 10 22 μF B REFCAP C(OUT_REFCAP) = 22 µF, Turn-on time 15 ms B C(OUT_REFIO) = 22 µF EXTERNAL REFERENCE INPUT External reference voltage on VREFIO_EXT 4.046 4.096 4.146 V C REFIO (configured as input) POWER-SUPPLY REQUIREMENTS AVDD Analog power-supply voltage Analog supply 4.75 5 5.25 V B Digital supply range 1.65 3.3 AVDD B DVDD Digital power-supply voltage V Digital supply range for specified 2.7 3.3 5.25 B performance For the ADS8698; AVDD = 5 V, fS = 13 16 A maximum and internal reference Dynamic, IAVDD_DYN mA AVDD For the ADS8694; AVDD = 5 V, fS = 8.5 11.5 A maximum and internal reference For the ADS8698; AVDD = 5 V, device not converting and internal 10 12 A reference IAVDD_STC Analog supply current Static mA For the ADS8694; AVDD = 5 V, device not converting and internal 5.5 8.5 A reference At AVDD = 5 V, device in STDBY ISTDBY Standby 3 4.5 mA A mode and internal reference Power- IPWR_DN At AVDD = 5 V, device in PWR_DN 3 20 μA B down IDVDD_DYN Digital supply current At DVDD = 3.3 V, output = 0000h 0.5 mA A DIGITAL INPUTS (CMOS) VIH 0.7 × DVDD DVDD + 0.3 A Digital input logic levels V DVDD > 2.1 V VIL –0.3 0.3 × DVDD A VIH 0.8 × DVDD DVDD + 0.3 A Digital input logic levels V DVDD ≤ 2.1 V VIL –0.3 0.2 × DVDD A Input leakage current 100 nA A Input pin capacitance 5 pF C DIGITAL OUTPUTS (CMOS) VOH IO = 500-μA source 0.8 × DVDD DVDD A Digital output logic levels V VOL IO = 500-μA sink 0 0.2 × DVDD A Floating state leakage current Only for SDO 1 µA A Internal pin capacitance 5 pF C TEMPERATURE RANGE TA Operating free-air temperature –40 125 °C B (10) Does not include the variation in voltage resulting from solder-shift and long-term effects. Copyright © 2015, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Links: ADS8694 ADS8698 |
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