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WM2619CDT データシート(PDF) 4 Page - Wolfson Microelectronics plc |
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WM2619CDT データシート(HTML) 4 Page - Wolfson Microelectronics plc |
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4 / 9 page  WM2619 Production Data WOLFSON MICROELECTRONICS LTD Production Data Rev 1.0 June 1999 4 ELECTRICAL CHARACTERISTICS Test Conditions: RL = 10k Ω, C L = 100pF. VDD = 5V ±± 10%, V REF = 2.048V and VDD = 3V ±± 10%, V REF = 1.024V over recommended operating free-air temperature range (unless noted otherwise) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Static DAC Specifications Resolution 12 bits Integral non-linearity INL See Note 1 ±±1.5 ±±4 LSB Differential non-linearity DNL See Note 2 ±±0.4 ±±1 LSB Zero code error ZCE See Note 3 3 ±±20 mV Gain error GE See Note 4 0.25 ±±0.5 % FSR D.c. power supply rejection ratio d.c. PSRR See Note 5 0.5 mV/V Zero code error temperature coefficient See Note 6 3 ppm/ °C Gain error temperature coefficient See Note 6 1 ppm/ °C DAC Output Specifications Output voltage range 0 VDD - 0.4 V Output load regulation 2k Ω to 10kΩ load See Note 7 0.1 0.3 % Power Supplies Active supply current IDD No load, VIH = VDD, VIL = 0V VDD = 5V, VREF = 2.048V VDD = 3V, VREF = 1.024V See Note 8 1.6 1.4 3.0 2.7 mA mA Power down supply current No load, all digital inputs 0V or VDD See Note 9 0.01 10 µA Dynamic DAC Specifications Slew rate DAC code 128 to 4095, 10%-90% See Note 10 8 V/ µs Settling time DAC code 128 to 4095 See Note 11 1 µs Glitch energy Code 2047 to 2048 5 nV-s Signal to noise ratio SNR fs = 480ksps, fOUT = 1kHz, BW = 20kHz, TA = 25 °C See Note 12 65 78 dB Signal to noise and distortion ratio SNRD fs = 480ksps, fOUT = 1kHz, BW = 20kHz, TA = 25 °C See Note 12 58 67 dB Total harmonic distortion THD fs = 480ksps, fOUT = 1kHz, BW = 20kHz, TA=25 °C See Note 12 -68 -60 dB Spurious free dynamic range SPFDR fs = 480ksps, fOUT = 1kHz, BW = 20kHz, TA = 25 °C See Note 12 60 72 dB Reference Reference input resistance RREFIN 10 M Ω Reference input capacitance CREFIN 5 pF Reference feedthrough VREF = 1VPP at 1kHz + 1.024Vdc, DAC code 0 -60 dB Reference input bandwidth VREF = 0.2VPP + 1.024V d.c. DAC code 2048 1.4 MHz |
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