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MAX1185 Datasheet(PDF) 2 Page - Maxim Integrated Products |
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MAX1185 Datasheet(HTML) 2 Page - Maxim Integrated Products |
2 / 20 page ![]() Dual 10-Bit, 20Msps, +3V, Low-Power ADC with Internal Reference and Multiplexed Parallel Outputs 2 _______________________________________________________________________________________ ABSOLUTE MAXIMUM RATINGS ELECTRICAL CHARACTERISTICS (VDD = +3V, OVDD = +2.5V, 0.1µF and 1µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through a 10k Ω resistor, VIN = 2Vp-p (differential w.r.t. COM), CL = 10pF at digital outputs (Note 5), fCLK = 20MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. VDD, OVDD to GND ...............................................-0.3V to +3.6V OGND to GND.......................................................-0.3V to +0.3V INA+, INA-, INB+, INB- to GND ...............................-0.3V to VDD REFIN, REFOUT, REFP, REFN, COM, CLK to GND............................................-0.3V to (VDD + 0.3V) OE, PD, SLEEP, T/B, D9A/B–D0A/B, A/B to OGND .......................................-0.3V to (OVDD + 0.3V) Continuous Power Dissipation (TA = +70°C) 48-Pin TQFP (derate 12.5mW/°C above +70°C).......1000mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-60°C to +150°C Lead Temperature (soldering, 10s) .................................+300°C PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DC ACCURACY Resolution 10 Bits Integral Nonlinearity INL fIN = 7.5MHz ±0.5 ±1.5 LSB Differential Nonlinearity DNL fIN = 7.5MHz, no missing codes guaranteed ±0.25 ±1.0 LSB Offset Error < ±1 ±1.7 % FS Gain Error 0 ±2 % FS ANALOG INPUT Differential Input Voltage Range VDIFF Differential or single-ended inputs ±1.0 V Common-Mode Input Voltage Range VCM VDD/2 ± 0.5 V Input Resistance RIN Switched capacitor load 100 k Ω Input Capacitance CIN 5pF CONVERSION RATE Maximum Clock Frequency fCLK 20 MHz CHA 5 Data Latency CHB 5.5 Clock Cycles DYNAMIC CHARACTERISTICS (fCLK = 20MHz, 4096-point FFT) fINA or B = 7.5MHz, TA = +25 °C 57.3 59.5 Signal-to-Noise Ratio SNR fINA or B = 12MHz 59.4 dB fINA or B = 7.5MHz, TA = +25 °C 57 59.4 Signal-to-Noise and Distortion SINAD fINA or B = 12MHz 59.2 dB fINA or B = 7.5MHz, TA = +25 °C64 74 Spurious-Free Dynamic Range SFDR fINA or B = 12MHz 72 dBc |