MAX1026ACEE+

19-2853; Rev 2; 10/05 KIT ATION EVALU E L B A AVAIL 10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference The MAX1026/MAX1028/MAX1030 are serial 10-bit analog-to-digital converters (ADCs) with an internal reference and an internal temperature sensor. These devices feature on-chip FIFO, scan mode, internal clock mode, internal averaging, and AutoShutdown™. The maximum sampling rate is 300ksps using an external clock. The MAX1030 has 16 input channels, the MAX1028 has 12 input channels, and the MAX1026 has 8 input channels. All input channels are configurable for single-ended or differential inputs in unipolar or bipolar mode. All three devices operate from a +5V supply and contain a 10MHz SPI™/QSPI™/MICROWIRE™-compatible serial port. The MAX1030 is available in 28-pin 5mm x 5mm TQFN with exposed pad and 24-pin QSOP packages. The MAX1026/MAX1028 are only available in QSOP packages. All three devices are specified over the extended -40°C to +85°C temperature range. ________________________Applications System Supervision Features ♦ Internal Temperature Sensor (±1°C Accuracy) ♦ 16-Entry First-In/First-Out (FIFO) ♦ Analog Multiplexer with True Differential Track/Hold 16-, 12-, 8-Channel Single Ended 8-, 6-, 4-Channel True Differential (Unipolar or Bipolar) ♦ Accuracy: ±1 LSB INL, ±1 LSB DNL, No Missing Codes Over Temperature ♦ Scan Mode, Internal Averaging, and Internal Clock ♦ Low-Power Single +5V Operation 1.9mA at 300ksps ♦ Internal 4.096V Reference or External Differential Reference ♦ 10MHz 3-Wire SPI/QSPI/MICROWIRE-Compatible Interface ♦ Space-Saving 28-Pin 5mm x 5mm TQFN Package Data-Acquisition Systems Ordering Information Industrial Control Systems Patient Monitoring TEMP RANGE PART Data Logging Instrumentation AutoShutdown is a trademark of Maxim Integrated Products, Inc. SPI/QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor Corp. PINPACKAGE PKG CODE MAX1026ACEE-T 0°C to +70°C 16 QSOP E16-1 MAX1026AEEE-T -40°C to +85°C 16 QSOP E16-1 Ordering Information continued at end of data sheet. Pin Configurations TOP VIEW AIN0 1 16 EOC AIN1 2 15 DOUT AIN2 3 14 DIN AIN3 4 MAX1026 AIN4 5 13 CS 12 SCLK AIN5 6 11 VDD REF-/AIN6 7 10 GND CNVST/AIN7 8 9 REF+ AIN0 1 20 EOC AIN1 2 19 DOUT AIN2 3 18 DIN 17 CS AIN3 4 AIN4 5 MAX1028 16 SCLK AIN5 6 15 VDD AIN6 7 14 GND AIN7 8 13 REF+ AIN8 9 12 CNVST/AIN11 AIN9 10 11 REF-/AIN10 QSOP Pin Configurations continued at end of data sheet. QSOP ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 1 MAX1026/MAX1028/MAX1030 General Description MAX1026/MAX1028/MAX1030 10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference ABSOLUTE MAXIMUM RATINGS VDD to GND ..............................................................-0.3V to +6V CS, SCLK, DIN, EOC, DOUT to GND.........-0.3V to (VDD + 0.3V) AIN0–AIN13, REF-/AIN_, CNVST/AIN_, REF+ to GND.........................................-0.3V to (VDD + 0.3V) Maximum Current into Any Pin............................................50mA Continuous Power Dissipation (TA = +70°C) 16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW 20-Pin QSOP (derate 9.1mW/°C above +70°C)...........727mW 24-Pin QSOP (derate 9.5mW/°C above +70°C)...........762mW 28-Pin TQFN 5mm x 5mm (derate 20.8mW/°C above +70°C) ..........................1667mW Operating Temperature Ranges MAX10__C__.......................................................0°C to +70°C MAX10__E__ ....................................................-40°C to +85°C Storage Temperature Range .............................-60°C to +150°C Junction Temperature ......................................................+150°C Lead Temperature (soldering, 10s) .................................+300°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. ELECTRICAL CHARACTERISTICS (VDD = +5V ±5%, fSAMPLE = 300kHz, fSCLK = 4.8MHz (50% duty cycle), VREF = 4.096V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS ±1.0 LSB ±1.0 LSB DC ACCURACY (Note 1) Resolution RES Integral Nonlinearity INL Differential Nonlinearity DNL 10 No missing codes over temperature Offset Error Gain Error Bits (Note 2) Offset Error Temperature Coefficient ±0.5 ±2.0 LSB ±0.5 ±2.0 LSB ±2 ppm/°C FSR Gain Temperature Coefficient ±0.8 ppm/°C Channel-to-Channel Offset Matching ±0.1 LSB DYNAMIC SPECIFICATIONS (10kHz sine wave input, 4.096VP-P, 300ksps, fSCLK = 4.8MHz) Signal-to-Noise Plus Distortion SINAD 70 dB Up to the 5th harmonic -82 dBc 80 dBc fin1 = 9.9kHz, fin2 = 10.2kHz 76 dBc Full-Power Bandwidth -3dB point 1 MHz Full-Linear Bandwidth S / (N + D) > 68dB 25 kHz Total Harmonic Distortion THD Spurious-Free Dynamic Range SFDR Intermodulation Distortion 2 IMD _______________________________________________________________________________________ 10-Bit 300ksps ADCs with FIFO, Temp Sensor, Internal Reference (VDD = +5V ±5%, fSAMPLE = 300kHz, fSCLK = 4.8MHz (50% duty cycle), VREF = 4.096V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS CONVERSION RATE Power-Up Time tPU Acquisition Time tACQ Conversion Time tCONV External Clock Frequency fSCLK External reference 0.8 Internal reference (Note 3) 65 Internally clocked 3.5 µs 0.6 Externally clocked (Note 4) 2.7 Externally clocked conversion 0.1 µs 4.8 Data I/O SCLK Duty Cycle µs 10 40 60 MHz % Aperture Delay 30 ns Aperture Jitter