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ADS830 Datasheet(PDF) 3 Page - Texas Instruments |
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ADS830 Datasheet(HTML) 3 Page - Texas Instruments |
3 / 16 page ADS830 3 SBAS086A ELECTRICAL CHARACTERISTICS (Cont.) At TA = full specified temperature range, single-ended input range = 1.5V to 3.5V, sampling rate = 60MHz, and external reference, unless otherwise noted. ADS830E PARAMETER CONDITIONS MIN TYP MAX UNITS CMOS/TTL Compatible Rising Edge of Convert Clock CMOS/TTL Compatible Straight Offset Binary DIGITAL INPUTS Logic Family Convert Command Start Conversion High Level Input Current(5) (VIN = 5V) 100 µA Low Level Input Current (VIN = 0V) 10 µA High Level Input Voltage +2.4 V Low Level Input Voltage +1.0 V Input Capacitance 5pF DIGITAL OUTPUTS Logic Family Logic Coding Low Output Voltage (IOL = 50µA) VDRV = 5V +0.1 V Low Output Voltage, (IOL = 1.6mA) +0.2 V High Output Voltage, (IOH = 50µA) +4.9 V High Output Voltage, (IOH = 0.5mA) +4.8 V Low Output Voltage, (IOL = 50µA) VDRV = 3V +0.1 V High Output Voltage, (IOH = 50µA) +2.8 V Output Capacitance 5pF ACCURACY (External Reference, 2Vp-p, Unless Otherwise Noted) fS = 2.5MHz Zero Error (Referred to –FS) at 25 °C –2.5 ±0.25 +2.5 %FS Zero Error Drift (Referred to –FS) ±53 ppm/ °C Gain Error(6) at 25 °C –2.5 ±0.3 +2.5 %FS Gain Error Drift(6) ±75 ppm/ °C Power Supply Rejection of Gain ∆ V S = ±5% 58 dB Internal REFT Tolerance Deviation from Ideal 3.0V ±10 ±100 mV Internal REFB Tolerance Deviation from Ideal 2.0V ±10 ±100 mV External REFT Voltage Range REFB + 0.8 3.0 VS – 1.25 V External REFB Voltage Range 1.25 2.0 REFT – 0.8 V Reference Input Resistance REFT to REFB 800 k Ω POWER SUPPLY REQUIREMENTS Supply Voltage: +VS Operating +4.75 +5.0 +5.25 V Supply Current: +IS Operating 37 45 mA Power Dissipation: VDRV = 5V External Reference 185 225 mW VDRV = 3V External Reference 170 mW VDRV = 5V Internal Reference 215 mW VDRV = 3V Internal Reference 200 mW Thermal Resistance, θ JA SSOP-20 115 °C/W NOTES: (1) Spurious Free Dynamic Range refers to the magnitude of the largest harmonic. (2) dBFS means dB relative to Full Scale. (3) Two-tone intermodulation distortion is referred to the largest fundamental tone. This number will be 6dB higher if it is referred to the magnitude of the two-tone fundamental envelope. (4) Effective number of bits (ENOB) is defined by (SINAD – 1.76) /6.02. (5) A 50k Ω pull-down resistor is inserted internally. (6) Excludes internal reference. |
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