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MAX1285 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1285 Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 15 page 400ksps/300ksps, Single-Supply, Low-Power, Serial 12-Bit ADCs with Internal Reference 4 _______________________________________________________________________________________ ELECTRICAL CHARACTERISTICS—MAX1285 (continued) (VDD = +2.7V to +3.0V; fSCLK = 4.8MHz, 50% duty cycle, 16 clocks/conversion cycle (300ksps), 4.7µF capacitor at REF, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DYNAMIC SPECIFICATIONS (75kHz sine wave, 2.5Vp-p, fSAMPLE = 300ksps, fSCLK = 4.8MHz) Signal-to-Noise Plus Distortion Ratio SINAD 70 dB Total Harmonic Distortion THD Up to the 5th harmonic -80 dB Spurious-Free Dynamic Range SFDR 80 dB Intermodulation Distortion IMD fIN1 = 73kHz, fIN2 = 77kHz 76 dB Full-Power Bandwidth -3dB point 3 MHz Full-Linear Bandwidth SINAD > 68dB 250 kHz CONVERSION RATE Conversion Time (Note 4) tCONV 3.3 µs Track/Hold Acquisition Time tACQ 625 ns Aperture Delay 10 ns Aperture Jitter <50 ps Serial Clock Frequency tSCLK 0.5 4.8 MHz Duty Cycle 40 60 % ANALOG INPUT (AIN) Input Voltage Range VAIN 0 2.5 V Input Capacitance 18 pF INTERNAL REFERENCE REF Output Voltage VREF 2.48 2.50 2.52 V REF Short-Circuit Current TA = +25°C15 mA REF Output Tempco TC VREF ±15 ppm/°C Load Regulation (Note 5) 0 to 0.75mA output load 0.1 2.0 mV/mA Capacitive Bypass at REF 4.7 10 µF DIGITAL INPUTS (SCLK, CS, SHDN) Input High Voltage VINH 2.0 V Input Low Voltage VINL 0.8 V Input Hysteresis VHYST 0.2 V Input Leakage IIN VIN = 0 or VDD ±1 µA Input Capacitance CIN 15 pF DIGITAL OUTPUT (DOUT) Output Voltage Low VOL ISINK = 5mA 0.4 V Output Voltage High VOH ISOURCE = 0.5mA 4 V Three-State Leakage Current IL CS = +3V ±10 µA Three-State Output Capacitance COUT CS = +3V 15 pF POWER SUPPLY Positive Supply Voltage (Note 6) VDD 2.7 3.6 V Positive Supply Current (Note 7) IDD VDD = +3.6V 2.5 3.5 mA Shutdown Supply Current ISHDN SCLK = VDD, SHDN = GND 2 10 µA Power-Supply Rejection PSR VDD = +2.7V to 3.6V, midscale input ±0.5 ±2.0 mV |
Similar Part No. - MAX1285 |
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Similar Description - MAX1285 |
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