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ADS8361 Datasheet(PDF) 3 Page - Burr-Brown (TI) |
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ADS8361 Datasheet(HTML) 3 Page - Burr-Brown (TI) |
3 / 23 page ADS8361 3 SBOS230C www.ti.com PARAMETER CONDITIONS MIN TYP(1) MAX UNITS ANALOG INPUT Full-Scale Range(2) (FSR) +IN – (–IN) ±V REF V Operating Common-Mode Signal 2.2 2.8 V Input Switch Resistance –IN = VREF 20 Ω Input Capacitance –IN = VREF 25 pF Input Leakage Current –IN = VREF ±1nA Differential Input Switch Resistance 40 Ω Differential Input Capacitance 15 pF Common-Mode Rejection Ratio (CMRR) At DC 84 dB VIN = ±1.25Vp-p at 50kHz 80 dB DC ACCURACY Resolution 16 Bits No Missing Code (NMC) 14 Bits Integral Linearity Error (INL) ±3 ±8 LSB(3) Integral Linearity Match Channel 0/1, Same A/D 4 LSB Differential Nonlinearity (DNL) +1.5(4) LSB Bipolar Offset Error (VOS) ±0.5 ±2mV Bipolar Offset Error Match Channel 0/1, Same A/D 0.5 1 mV Bipolar Offset Error Drift (TCVOS) 0.4 ppm/ °C Gain Error(6) (GERR) ±0.05 ±0.5 % Gain Error Match 0.05 0.15 % Gain Error Drift (TCGERR) 20 ppm/ °C Noise 60 µVrms Power-Supply Rejection Ratio (PSRR) 4.75V < AVDD < 5.25V, with –70 dB External Reference, at DC SAMPLING DYNAMICS Conversion Time per A/D (tCONV) 100kHz ≤ f CLK ≤ 10MHz 1.6 160 µs Acquisition Time (tAQ)fCLK = 10MHz 400 ns Throughout Rate 500 kSPS Aperture Delay 5ns Aperture Delay Matching 100 ps Aperture Jitter 50 ps Clock Frequency 0.1 10 MHz AC ACCURACY Total Harmonic Distortion (THD) VIN = ±2.5Vp-p at 10kHz –94 dB Spurious-Free Dynamic Range (SFDR) VIN = ±2.5Vp-p at 10kHz 94 dB Signal-to-Noise Ratio (SNR) VIN = ±2.5Vp-p at 10kHz 83 dB Signal-to-Noise + Distortion (SINAD) VIN = ±2.5Vp-p at 10kHz 83 dB Channel-to-Channel Isolation VIN = ±2.5Vp-p at 10kHz 96 dB VOLTAGE REFERENCE OUTPUT Reference Voltage Ouput (VOUT) 2.475 2.5 2.525 V Initial Accuracy ±1% Output Voltage Temperature Drift (dVOUT/dT) ±20 ppm/ °C Output Voltage Noise f = 0.1Hz to 10Hz, CL = 10µF10 µVp-p f = 10Hz to 10kHz, CL = 10µF12 µVrms Power-Supply Rejection Ratio (PSRR) 60 dB Output Current (IOUT)10 µA Short-Circuit Current (ISC) 0.5 mA Turn On Settling Time to 0.1% at CL = 0 100 µs VOLTAGE REFERENCE INPUT Reference Voltage Input (VIN) 1.2 2.5 2.6 V Reference Input Resistance 100 M Ω Reference Input Capacitance 5pF Reference Input Current 1 µA ELECTRICAL CHARACTERISTICS Over recommended operating free-air temperature range at –40 °C to 85°C, AV DD = 5V, BVDD = 3V, VREF = internal +2.5V, fCLK = 10MHz, and fSAMPLE = 500 kSPS, unless otherwise noted. NOTES: (1) All Values are at TA = 25°C. (2) Ideal input span; does not include gain or offset error. (3) LSB means Least Significant Bit, with VREF equal to +2.5V; 1LSB = 76 µV. (4) Specified for 14-bit no missing code. (5) Specified for 15-bit no missing code. (6) Measured relative to an ideal, full-scale input (+IN – (–IN)) of 4.9999V. Thus, gain error does not include the error of the internal voltage reference. ADS8361 |
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