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MAX1195 Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX1195 Datasheet(HTML) 4 Page - Maxim Integrated Products |
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4 / 22 page 
Dual, 8-Bit, 40Msps, 3V, Low-Power ADC with Internal Reference and Parallel Outputs 4 _______________________________________________________________________________________ PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Common-Mode Level VCOM (Note 5) VDD / 2 ±0.1 V Differential Reference Output Voltage Range ∆VREF ∆VREF = VREFP - VREFN 1.024 ±3% V Reference Temperature Coefficient TCREF ±100 ppm/°C BUFFERED EXTERNAL REFERENCE (VREFIN = 2.048V) Positive Reference Output Voltage VREFP (Note 5) 2.012 V Negative Reference Output Voltage VREFN (Note 5) 0.988 V Common-Mode Level VCOM (Note 5) VDD / 2 ±0.1 V Differential Reference Output Voltage Range ∆VREF ∆VREF = VREFP - VREFN 1.024 ±2% V REFIN Resistance RREFIN >50 M Ω Maximum REFP, COM Source Current ISOURCE 5mA Maximum REFP, COM Sink Current ISINK -250 µA Maximum REFN Source Current ISOURCE 250 µA Maximum REFN Sink Current ISINK -5mA UNBUFFERED EXTERNAL REFERENCE (VREFIN = AGND, reference voltage applied to REFP, REFN, and COM) REFP, REFN Input Resistance RREFP, RREFN Measured between REFP, COM, REFN, and COM 4k Ω REFP, REFN, COM Input Capacitance CIN 15 pF Differential Reference Input Voltage Range ∆VREF ∆VREF = VREFP - VREFN 1.024 ±10% V COM Input Voltage Range VCOM VDD / 2 ±5% V REFP Input Voltage VREFP VCOM + ∆VREF / 2 V REFN Input Voltage VREFN VCOM – ∆VREF / 2 V ELECTRICAL CHARACTERISTICS (continued) (VDD = OVDD = 3V, 0.1µF and 2.2µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a 10k Ω resistor, VIN = 2VP-P (differential with respect to COM), CL = 10pF at digital outputs, fCLK = 40MHz, TA = TMIN to TMAX, unless otherwise noted. ≥+25°C guaranteed by production test, <+25°C guaranteed by design and characerization. Typical values are at TA = +25°C.) |
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