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MSC1210Y4PAGR Datasheet(PDF) 4 Page - Texas Instruments |
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MSC1210Y4PAGR Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 95 page  MSC1210 SBAS203J − MARCH 2002 − REVISED JANUARY 2008 www.ti.com 4 ELECTRICAL CHARACTERISTICS: AVDD = 5V (continued) All specifications from TMIN to TMAX, DVDD = +2.7V to 5.25V, fMOD = 15.625kHz, PGA = 1, Buffer ON, fDATA = 10Hz, Bipolar, and VREF ≡ (REF IN+) − (REF IN−) = +2.5V, unless otherwise noted. MSC1210Yx PARAMETER UNITS MAX TYP MIN CONDITIONS Voltage Reference Input Reference Input Range REF IN+, REF IN− AGND AVDD(2) V VREF VREF ≡ (REF IN+) − (REF IN−) 0.1 2.5 AVDD V VREF Common-Mode Rejection At DC 130 dB VREF Common-Mode Rejection fCM = 60Hz, fDATA = 60Hz 120 dB Input Current(4) VREF = 2.5V 3 µA On-Chip Voltage Reference Output Voltage VREFH = 1 at +25 °C, ACLK = 1MHz 2.495 2.5 2.505 V Output Voltage VREFH = 0 at +25 °C, ACLK = 1MHz 1.25 V Power-Supply Rejection Ratio 65 dB Short-Circuit Current Source 8 mA Short-Circuit Current Sink 50 µA Short-Circuit Duration Sink or Source Indefinite Drift 5 ppm/ °C Output Impedance Sourcing 100 µA 3 Ω Startup Time from Power On CREF = 0.1µF 8 ms Temperature Sensor Voltage T = +25 °C 115 mV Temperature Sensor Coefficient 375 µV/°C Analog Power-Supply Requirements Analog Power-Supply Voltage AVDD 4.75 5.0 5.25 V Analog Current (IADC + IVREF) PDADC = 1, ALVDIS = 1, DAB = 1 < 1 nA PGA = 1, Buffer OFF 200 µA Analog Power-Supply ADC Current PGA = 128, Buffer OFF 500 µA Power-Supply Current ADC Current (IADC) PGA = 1, Buffer ON 240 µA Current ADC PGA = 128, Buffer ON 850 µA VREF Supply Current (IVREF) ADC ON, VREF = 2.5V 250 µA (1) Calibration can minimize these errors. (2) The self-gain calibration cannot have a REF IN+ of more than AVDD −1.5V with Buffer ON. To calibrate gain, turn Buffer OFF. (3) ∆VOUT is change in digital result. (4) 9pF switched capacitor at fSAMP clock frequency (see Figure 14). (5) The input impedance for PGA = 128 is the same as that for PGA = 64 (that is, 7M Ω/64). |
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