MAX1393 Datasheet, PDF (1/19 Pages) Maxim Integrated Products – 1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/ 2-Channel Single-Ended, 12-Bit, SAR ADCs

19-3644; Rev 0; 5/05
1.5V to 3.6V, 312.5ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 12-Bit, SAR ADCs
General Description
The MAX1393/MAX1396 micropower, serial-output, 12-
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
0.734mW (V_DD = +1.5V) at the maximum conversion rate
of 312.5ksps. AutoShutdown™ between conversions
reduces power consumption at slower throughput rates.
The MAX1393/MAX1396 require an external reference
V_REF that has a wide range from 0.6V to V_DD. The
MAX1393 provides one true-differential analog input
that accepts signals ranging from 0 to V_REF (unipolar
mode) or ±V_REF/2 (bipolar mode). The MAX1396 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)-compati-
ble 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 MAX1393/MAX1396 are available in a space-saving
(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) temper-
ature ranges.
Applications
Portable Datalogging
Data Acquisition
Medical Instruments
Battery-Powered Instruments
Process Control
Features
♦ 312.5ksps, 12-Bit Successive-Approximation
Register (SAR) ADCs
♦ Single True-Differential Analog Input Channel
with Unipolar-/Bipolar-Select Input (MAX1393)
♦ Dual Single-Ended Input Channel with Channel-
Select Input (MAX1396)
♦ ±1 LSB INL, ±1 LSB DNL, No Missing Codes
♦ ±2 LSB Total Unadjusted Error (TUE)
♦ 70dB SINAD at 75kHz Input Frequency
♦ External Reference (0.6V to V_DD)
♦ Single-Supply Voltage (+1.5V to +3.6V)
♦ 0.915mW at 300ksps, 1.8V
♦ 0.305mW at 100ksps, 1.8V
♦ 3.1µW at 1ksps, 1.8V
♦ < 1µA Shutdown Current
♦ 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.
PART
TEMP RANGE
MAX1393ETB
MAX1393EUB
-40°C to +85°C
-40°C to +85°C
MAX1393MTB*
-55°C to +125°C
MAX1393MUB*
MAX1396ETB
-55°C to +125°C
-40°C to +85°C
MAX1396EUB*
MAX1396MTB*
-40°C to +85°C
-55°C to +125°C
MAX1396MUB*
-55°C to +125°C
*Future product—contact factory for availability.
**EP = Exposed pad.
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
AOZ
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APC
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