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 (V
DD
= +1.5V) at the maximum conversion
rate of 357ksps. AutoShutdown鈩?between conversions
reduces power consumption at slower throughput rates.
The MAX1392/MAX1395 require an external reference
V
REF
that has a wide range from 0.6V to V
DD
. The
MAX1392 provides one true-differential analog input
that accepts signals ranging from 0 to V
REF
(unipolar
mode) or 卤V
REF
/2 (bipolar mode). The MAX1395 pro-
vides two single-ended inputs that accept signals rang-
ing from 0 to V
REF
. Analog conversion results are
available through a 5MHz, 3-wire SPI鈩?/QSPI鈩?
/MICROWIRE鈩?/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
碌MAX
庐
package. The parts operate over the extended
(-40掳C to +85掳C) and military (-55掳C to +125掳C) tem-
perature ranges.
Features
鈾?/div>
357ksps 10-Bit Successive-Approximation
Register (SAR) ADCs
鈾?/div>
Single True-Differential Analog Input Channel
with Unipolar-/Bipolar-Selected Input (MAX1392)
鈾?/div>
Dual Single-Ended Input Channel with Channel-
Selected Input (MAX1395)
鈾?/div>
卤0.5 LSB INL, 卤0.5 LSB DNL, No Missing Codes
鈾?/div>
卤1 LSB Total Unadjusted Error
鈾?/div>
61dB SINAD at 85kHz Input Frequency
鈾?/div>
Single Supply Voltage (+1.5V to +3.6V)
鈾?/div>
0.945mW at 350ksps, 1.8V
鈾?/div>
0.27mW at 100ksps, 1.8V
鈾?/div>
3.1碌W at 1ksps, 1.8V
鈾?/div>
<1碌A Shutdown Current
鈾?/div>
External Reference (0.6V to V
DD
)
鈾?/div>
AutoShutdown Between Conversions
鈾?/div>
SPI-/QSPI-/MICROWIRE-/DSP-Compatible,
3- or 4-Wire Serial Interface
鈾?/div>
Small (3mm x 3mm), 10-Pin TDFN or 碌MAX
(3mm x 5mm) Package
MAX1392/MAX1395
Applications
Portable Datalogging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Process Control
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.
碌MAX is a registered trademark of Maxim Integrated Products, Inc.
Ordering Information
PART
MAX1392ETB**
MAX1392EUB**
MAX1392MTB**
MAX1392MUB**
MAX1395ETB
MAX1395EUB**
MAX1395MTB**
MAX1395MUB**
TEMP RANGE
-40掳C to +85掳C
-40掳C to +85掳C
-55掳C to +125掳C
-55掳C to +125掳C
-40掳C to +85掳C
-40掳C to +85掳C
-55掳C to +125掳C
-55掳C to +125掳C
PIN-PACKAGE
10 TDFN-EP*
10 碌MAX
10 TDFN-EP*
10 碌MAX
10 TDFN-EP*
10 碌MAX
10 TDFN-EP*
10 碌MAX
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
鈥?/div>
鈥?/div>
鈥?/div>
APB
鈥?/div>
鈥?/div>
鈥?/div>
*EP
= Exposed pad.
**Future
product鈥攃ontact factory for availability.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
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