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MSC1202 Datasheet(PDF) 4 Page - Burr-Brown (TI) |
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MSC1202 Datasheet(HTML) 4 Page - Burr-Brown (TI) |
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4 / 78 page  MSC1201 MSC1202 SBAS317B − APRIL 2004 − REVISED JANUARY 2005 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. MSC1201Yx, MSC1202Yx PARAMETER UNITS MAX TYP MIN CONDITION Voltage Reference Input Reference Input Range REF IN+, REF IN− AGND AVDD(3) V ADC VREF VREF ≡ (REFIN+) − (REFIN−) 0.1 2.5 AVDD V VREF Common-Mode Rejection At DC 115 dB Input Current VREF = 2.5V, PGA = 1 1 µA On-Chip Voltage Reference Output Voltage VREFH = 1 at +25 °C 2.5 V Output Voltage VREFH = 0 1.25 V Short-Circuit Current Source 8 mA Short-Circuit Current Sink 50 mA Short-Circuit Duration Sink or Source Indefinite Startup Time from Power ON CREFOUT = 0.1µF 8 ms Temperature Sensor Temperature Sensor Voltage T = +25 °C 115 mV Temperature Sensor Coefficient 345 µV/°C IDAC Output Characteristics IDAC Resolution 8 Bits Full-Scale Output Current 1 mA Maximum Short-Circuit Current Duration Indefinite Compliance Voltage AVDD − 1.5 V Analog Power-Supply Requirements Analog Power-Supply Voltage AVDD 4.75 5.0 5.25 V Analog Current BOR OFF, External Clock Mode, Analog OFF, ALVD OFF, PDADC = PDIDAC = 1 < 1 nA PGA = 1, Buffer OFF 170 µA Analog ADC Current PGA = 128, Buffer OFF 430 µA Analog Power-Supply ADC Current (IADC) PGA = 1, Buffer ON 230 µA Power-Supply Current ADC PGA = 128, Buffer ON 770 µA Current VREF Supply Current (IVREF) ADC ON 360 µA IDAC Supply Current (IIDAC) IDAC = 00h 230 µA (1) The input impedance for PGA = 128 is the same as that for PGA = 64 (that is, 7MΩ/64). (2) Calibration can minimize these errors. (3) The gain calibration cannot have a REF IN+ of more than AV DD −1.5V with Buffer ON. To calibrate gain, turn Buffer OFF. (4) ∆VOUT is change in digital result. |
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