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MAX1392 Datasheet, PDF (1/19 Pages) Maxim Integrated Products – 1.5V to 3.6V, 357ksps, 1-Channel True-Differential/ 2-Channel Single-Ended, 10-Bit, SAR ADCs | |||
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19-3709; Rev 0; 5/05
1.5V to 3.6V, 357ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 10-Bit, SAR ADCs
General Description
The MAX1392/MAX1395 micropower, serial-output,
10-bit, analog-to-digital converters (ADCs) operate with
a single power supply from +1.5V to +3.6V. These
ADCs feature automatic shutdown, fast wake-up, and a
high-speed 3-wire interface. Power consumption is only
0.740mW (VDD = +1.5V) at the maximum conversion
rate of 357ksps. AutoShutdown⢠between conversions
reduces power consumption at slower throughput rates.
The MAX1392/MAX1395 require an external reference
VREF that has a wide range from 0.6V to VDD. The
MAX1392 provides one true-differential analog input
that accepts signals ranging from 0 to VREF (unipolar
mode) or ±VREF/2 (bipolar mode). The MAX1395 pro-
vides two single-ended inputs that accept signals rang-
ing from 0 to VREF. Analog conversion results are
available through a 5MHz, 3-wire SPIâ¢-/QSPIâ¢-
/MICROWIREâ¢-/digital signal processor (DSP)-compat-
ible serial interface. Excellent dynamic performance,
low voltage, low power, ease of use, and small pack-
age sizes make these converters ideal for portable bat-
tery-powered data-acquisition applications, and for
other applications that demand low power consumption
and minimal space.
The MAX1392/MAX1395 are available in a space-sav-
ing (3mm x 3mm) 10-pin TDFN package or 10-pin
µMAX® package. The parts operate over the extended
(-40°C to +85°C) and military (-55°C to +125°C) tem-
perature ranges.
Applications
Portable Datalogging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Process Control
Features
⦠357ksps 10-Bit Successive-Approximation
Register (SAR) ADCs
⦠Single True-Differential Analog Input Channel
with Unipolar-/Bipolar-Selected Input (MAX1392)
⦠Dual Single-Ended Input Channel with Channel-
Selected Input (MAX1395)
⦠±0.5 LSB INL, ±0.5 LSB DNL, No Missing Codes
⦠±1 LSB Total Unadjusted Error
⦠61dB SINAD at 85kHz Input Frequency
⦠Single Supply Voltage (+1.5V to +3.6V)
⦠0.945mW at 350ksps, 1.8V
⦠0.27mW at 100ksps, 1.8V
⦠3.1µW at 1ksps, 1.8V
⦠<1µA Shutdown Current
⦠External Reference (0.6V to VDD)
⦠AutoShutdown Between Conversions
⦠SPI-/QSPI-/MICROWIRE-/DSP-Compatible,
3- or 4-Wire Serial Interface
⦠Small (3mm x 3mm), 10-Pin TDFN or µMAX
(3mm x 5mm) Package
Typical Operating Circuit and Pin Configurations appear at
end of data sheet.
AutoShutdown is a trademark of Maxim Integrated Products, Inc.
SPI/QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Ordering Information
PART
TEMP RANGE
MAX1392ETB**
-40°C to +85°C
MAX1392EUB**
-40°C to +85°C
MAX1392MTB**
-55°C to +125°C
MAX1392MUB**
-55°C to +125°C
MAX1395ETB
-40°C to +85°C
MAX1395EUB**
-40°C to +85°C
MAX1395MTB**
-55°C to +125°C
MAX1395MUB**
-55°C to +125°C
*EP = Exposed pad.
**Future productâcontact factory for availability.
PIN-PACKAGE
10 TDFN-EP*
10 µMAX
10 TDFN-EP*
10 µMAX
10 TDFN-EP*
10 µMAX
10 TDFN-EP*
10 µMAX
ANALOG INPUTS
1-CH DIFF
1-CH DIFF
1-CH DIFF
1-CH DIFF
2-CH S/E
2-CH S/E
2-CH S/E
2-CH S/E
TOP MARK
AOY
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APB
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________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maximâs website at www.maxim-ic.com.
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