The MAX1067/MAX1068 low-power, multichannel, 14-bit analog-to-digital converters (ADCs) feature a successive-approximation ADC, integrated +4.096V
reference, a reference buffer, an internal oscillator,
automatic power-down, and a high-speed SPI™/QSPI™/MICROWIRE™-compatible interface. The MAX1067/MAX1068 operate with a single +5V analog
supply and feature a separate digital supply, allowing
direct interfacing with +2.7V to +5.5V digital logic.
The MAX1067/MAX1068 consume only 3.6mA (AVDD =
DVDD = +5V) at 200ksps when using an external reference.
AutoShutdown™ reduces the supply current to
185µA at 10ksps and to less than 10µA at reduced sampling
rates.
The MAX1067 includes a 4-channel input multiplexer, and
the MAX1068 accepts up to eight analog inputs.
In addition, digital signal processor (DSP)-initiated conversions
are simplified with the DSP frame-sync input and
output featured in the MAX1068. The MAX1068 includes a
data-bit transfer input to select between 8-bit-wide or 16-bit-wide data-transfer modes. Both devices feature a scan
mode that converts each channel sequentially or one
channel continuously.
Excellent dynamic performance and low power, combined
with ease of use and an integrated reference,
make the MAX1067/MAX1068 ideal for control and data-acquisition
operations or for other applications with
demanding power consumption and space requirements.
The MAX1067 is available in a 16-pin QSOP
package, and the MAX1068 is available in a 24-pin
QSOP package. Both devices are guaranteed over the
commercial (0°C to +70°C) and extended (-40°C to
+85°C) temperature ranges. Use the MAX1168 evaluation
kit to evaluate the MAX1068.
Key Features
Applications/Uses
14-Bit Resolution, ±0.5 LSB INL and ±1 LSB DNL (max)
+5V Single-Supply Operation
Adjustable Logic Level (+2.7V to +5.25V)
Input Voltage Range: 0 to VREF
Internal (+4.096V) or External (+3.8V to AVDD) Reference
Internal Track/Hold, 4MHz Input Bandwidth
Internal or External Clock
SPI/QSPI/MICROWIRE-Compatible Serial Interface, MAX1068 Performs DSP-Initiated Conversions
8-Bit-Wide or 16-Bit-Wide Data-Transfer Mode (MAX1068 Only)
4-Channel (MAX1067) or 8-Channel (MAX1068) Input Mux
Scan Mode Sequentially Converts Multiple Channels or One Channel Continuously
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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