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MSC1212Y4PAGR Datasheet(PDF) 5 Page - Burr-Brown (TI) |
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MSC1212Y4PAGR Datasheet(HTML) 5 Page - Burr-Brown (TI) |
5 / 69 page MSC1212 5 SBAS278A www.ti.com ELECTRICAL CHARACTERISTICS: AVDD = 3V (Cont.) All specifications from TMIN to TMAX, AVDD = +3V, DVDD = +2.7V to 5.25V, fMOD = 15.625kHz, PGA = 1, Buffer ON, fDATA = 10Hz, and Bipolar, VREF ≡ (REF IN+) – (REF IN–) = +1.25V, unless otherwise noted. For VDAC, VREF = AVDD, RLOAD = 10kΩ, and CLOAD = 200pF, unless otherwise noted. MSC1212Yx PARAMETER CONDITION MIN TYP MAX UNITS SYSTEM PERFORMANCE (Cont.) Common-Mode Rejection At DC 100 115 dB fCM = 60Hz, fDATA = 10Hz 130 dB fCM = 50Hz, fDATA = 50Hz 120 dB fCM = 60Hz, fDATA = 60Hz 120 dB Normal Mode Rejection fSIG = 50Hz, fDATA = 50Hz 100 dB fSIG = 60Hz, fDATA = 60Hz 100 dB Power-Supply Rejection At DC, dB = –20log( ∆V OUT/∆VDD) (3) 85 dB VOLTAGE REFERENCE INPUTS Reference Input Range REF IN+, REF IN– 0.0 AVDD(2) V VREF VREF ≡ (REF IN+) – (REF IN–) 0.3 1.25 AVDD V VREF Common-Mode Rejection At DC 110 dB Input Current(4) VREF = 1.25V, ADC Only 10 µA DAC Reference Current For each DAC, 3V Reference 25 µA ON-CHIP VOLTAGE REFERENCE Output Voltage VREFH = 0 at +25 °C, PGA = 1, 2, 4, 8 1.245 1.25 1.255 V Power-Supply Rejection Ratio 65 dB Short-Circuit Current Source 2.6 mA Short-Circuit Current Sink 50 µA Short-Circuit Duration Sink or Source Indefinite Drift 5 ppm/ °C Output Impedance Sourcing 100 µA3 Ω Startup Time from Power ON CREFOUT = 0.1µF8 ms Temperature Sensor Temperature Sensor Voltage T = +25 °C 115 mV Temperature Sensor Coefficient 375 µV/°C VOLTAGE DAC STATIC PERFORMANCE (5) Resolution 16 Bits Relative Accuracy ±0.05 ±0.146 % of FSR Differential Nonlinearity Ensured Monotonic by Design ±1LSB Zero Code Error All 0s Loaded to DAC Register +13 +35 mV Full-Scale Error All 1s Loaded to DAC Register –1.25 0 % of FSR Gain Error –1.25 0 ±1.25 % of FSR Zero Code Error Drift ±20 µV/°C Gain Temperature Coefficient ±5 ppm of FSR/ °C VOLTAGE DAC OUTPUT CHARACTERISTICS(6) Output Voltage Range AGND AVDD V Output Voltage Settling Time To ±0.003% FSR, 0200H to FD00H 8 µs Slew Rate 1V/ µs DC Output Impedance 7 Ω Short-Circuit Current All 1s Loaded to DAC Register 16 mA IDAC OUTPUT CHARACTERISTICS Full-Scale Output Current Maximum VREF = 2.5V 25 mA Maximum Short-Circuit Current Duration Indefinite Compliance Voltage AVDD – 1.5 Relative Accuracy Over Full Range 0.185 % of FSR Zero Code Error 0.5 % of FSR Full-Scale Error –0.4 % of FSR Gain Error –0.6 % of FSR ANALOG POWER-SUPPLY REQUIREMENTS Analog Power-Supply Voltage AVDD 2.7 3.6 V Analog Current IADC + IVREF Analog OFF, PDAD = 1 < 1 nA ADC Current IADC PGA = 1, Buffer OFF 200 µA PGA = 128, Buffer OFF 500 µA PGA = 1, Buffer ON 240 µA PGA = 128, Buffer ON 850 µA VDAC Current IVDAC Excluding Load Current External Reference 250 µA VREF Current IVREF 250 µA NOTES: (1) Calibration can minimize these errors. (2) The gain calibration cannot have a REF IN+ of more than AVDD – 1.5V with buffer ON. To calibrate gain, turn buffer off. (3) ∆V OUT is change in digital result. (4) 9pF switched capacitor at fSAMP clock frequency (see Figure 6). (5) Linearity calculated using a reduced code range of 512 to 65024; output unloaded. (6) Ensured by design and characterization, not production tested. |
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