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ADS1203IRGTTG4 Datasheet(PDF) 5 Page - Texas Instruments |
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ADS1203IRGTTG4 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 34 page ADS1203 SBAS318C − JUNE 2004 − REVISED JANUARY 2008 www.ti.com 5 ELECTRICAL CHARACTERISTICS (continued) Over recommended operating free-air temperature range at −40 °C to +125°C, AVDD = BVDD = +5V or VDD = +5V, VIN+ = −250mV to +250mV, VIN− = 0V, Mode 3, MCLK input = 20MHz, and 16-bit Sinc3 filter, with OSR = 256, unless otherwise noted. PARAMETER UNITS ADS1203I TEST CONDITIONS PARAMETER UNITS MAX TYP(1) MIN TEST CONDITIONS Digital Inputs(6)(8) Logic family LVCMOS VIH High-level input Voltage BVDD = 3.6V 2 BVDD+0.3 V VIL Low-level input voltage BVDD = 2.7V −0.3 0.8 V IIN Input current VI = BVDD or GND ±50 nA CI Input capacitance 5 pF Digital Outputs(6)(8) Logic family LVCMOS VOH High-level output voltage BVDD = 2.7V, IOH = −100µA BVDD−0.2 V VOL Low-level output voltage BVDD = 2.7V, IOL = +100µA 0.2 V CL Load capacitance 30 pF Data format Bit Stream Power Supply VDD Supply voltage 4.5 5.5 V AVDD(6) Analog supply voltage 4.5 5.5 V BVDD(6) Buffer I/O supply voltage Low-voltage levels 2.7 3.6 V BVDD(6) Buffer I/O supply voltage 5V logic levels 4.5 5.5 V IDD Supply current Mode 0 8.4 10.5 mA IDD Supply current Mode 3 6.7 8.5 mA AIDD(6) Analog operating supply current Mode 0 6.2 7.5 mA AIDD(6) Analog operating supply current Mode 3 5.9 6.9 mA BIDD(6) Buffer I/O operating supply BVDD = 3V, Mode 0 2.2 2.3 mA BIDD(6) Buffer I/O operating supply current BVDD = 3V, Mode 3(9) 0.8 0.9 mA Power dissipation Mode 0 42 49 mW Power dissipation Mode 3(9) 33.5 39 mW (1) All typical values are at T A = +25 °C. (2) Integral nonlinearity is defined as the maximum deviation of the line through the end points of the specified input range of the transfer curve for VIN+ = −250mV to +250mV, expressed either as the number of LSBs or as a percent of measured input range (500mV). (3) Ensured by design. (4) Maximum values, including temperature drift, are ensured over the full specified temperature range. (5) With reduced accuracy, the supported external clock frequency range is 1MHz up to 32MHz. (6) Available only for QFN package. (7) Applicable for 5.0V nominal supply: BV DD = 4.5V to 5.5V. (8) Applicable for 3.0V nominal supply: BV DD = 2.7V to 3.6V. (9) Measured with CLKOUT pin not loaded. EQUIVALENT INPUT CIRCUIT R ON = 350Ω C (SAMPLE) =5pF V DD V DD (AV DD) (BV DD) (AGND) (BGND) GND GND D IN A IN Diode Turn on Voltage: 0.4V Equivalent Analog Input Circuit Equivalent Digital Input Circuit |
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