MAX1392_09 Datasheet, PDF (1/18 Pages) Maxim Integrated Products – 1.5V to 3.6V, 357ksps, 1-Channel True-Differential/ 2-Channel Single-Ended, 10-Bit, SAR ADCs

19-3709; Rev 3; 10/09
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™ 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 ±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™-/QSPI™-
/MICROWIRE™-/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. The parts
operate over the extended (-40°C to +85°C) tempera-
ture range.
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 V_DD)
♦ AutoShutdown Between Conversions
♦ SPI-/QSPI-/MICROWIRE-/DSP-Compatible,
3- or 4-Wire Serial Interface
♦ Small (3mm x 3mm), 10-Pin TDFN
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.
PART
TEMP RANGE
PIN-PACKAGE
MAX1392ETB+
-40°C to +85°C
10 TDFN-EP*
MAX1395ETB+
-40°C to +85°C
10 TDFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Ordering Information
ANALOG INPUTS
1-CH DIFF
2-CH S/E
TOP MARK
AOY
APB
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.