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MAX1267ACEG Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX1267ACEG Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 19 page General Description The MAX1265/MAX1267 low-power, 12-bit analog-to- digital converters (ADCs) feature a successive-approxi- mation ADC, automatic power-down, fast wake-up (2µs), an on-chip clock, +2.5V internal reference, and a high-speed 12-bit parallel interface. They operate with a single +2.7V to +3.6V analog supply. Power consumption is only 5.4mW at the maximum sampling rate of 265ksps. Two software-selectable power-down modes enable the MAX1265/MAX1267 to be shut down between conversions; accessing the par- allel interface returns them to normal operation. Powering down between conversions can reduce sup- ply current below 10µA at lower sampling rates. Both devices offer software-configurable analog inputs for unipolar/bipolar and single-ended/pseudo-differen- tial operation. In single-ended mode, the MAX1265 has six input channels and the MAX1267 has two (three input channels and one input channel, respectively, when in pseudo-differential mode). Excellent dynamic performance and low power, com- bined with ease of use and small package size, make these converters ideal for battery-powered and data- acquisition applications or for other circuits with demand- ing power-consumption and space requirements. The MAX1265 is offered in a 28-pin QSOP package, while the MAX1267 comes in a 24-pin QSOP. For pin-compatible +5V, 12-bit versions, refer to the MAX1266/MAX1268 data sheet. Applications Industrial Control Systems Data Logging Energy Management Patient Monitoring Data-Acquisition Systems Touch Screens Features o 12-Bit Resolution, ±0.5 LSB Linearity o +3V Single-Supply Operation o Internal +2.5V Reference o Software-Configurable Analog Input Multiplexer 6-Channel Single Ended/ 3-Channel Pseudo Differential (MAX1265) 2-Channel Single Ended/ 1-Channel Pseudo Differential (MAX1267) o Software-Configurable Unipolar/Bipolar Analog Inputs o Low Current 1.9mA (265ksps) 1.0mA (100ksps) 400µA (10ksps) 2µA (Shutdown) o Internal 3MHz Full-Power Bandwidth Track/Hold o Parallel 12-Bit Interface o Small Footprint 28-Pin QSOP (MAX1265) 24-Pin QSOP (MAX1267) 265ksps, +3V, 6-/2-Channel, 12-Bit ADCs with +2.5V Reference and Parallel Interface ________________________________________________________________ Maxim Integrated Products 1 19-2721; Rev 0; 04/03 28 QSOP ±1 0°C to +70°C MAX1265BCEI INL (LSB) ±0.5 28 QSOP PIN-PACKAGE TEMP RANGE 0°C to +70°C MAX1265ACEI PART Ordering Information Pin Configurations Typical Operating Circuits appear at end of data sheet. 28 27 26 25 24 23 22 21 20 19 18 17 16 15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 D10 D11 VDD REF REFADJ GND CS COM CH0 CH1 CH2 CH3 CH4 CH5 CLK WR RD INT D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 QSOP TOP VIEW MAX1265 Pin Configurations continued at end of data sheet. 28 QSOP ±0.5 -40°C to +85°C MAX1265AEEI 28 QSOP ±1 -40°C to +85°C MAX1265BEEI 24 QSOP ±0.5 -40°C to +85°C MAX1267AEEG 24 QSOP ±1 -40°C to +85°C MAX1267BEEG 24 QSOP ±1 0°C to +70°C MAX1267BCEG ±0.5 24 QSOP 0°C to +70°C MAX1267ACEG 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. |
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