Features: 16-Bit Resolution, ±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, MAX1168 Performs DSP-Initiated Conversions
8-Bit-Wide or 16-Bit-Wide Data-Transfer Mode (MAX1168 Only)
4-Channel (MAX1167) or 8-Channel (MAX1168)
-Input Mux
Scan Mode Sequentially Converts Multiple
Channels or One Channel Continuously
Low Power
-2.9mA at 200ksps
-1.45mA at 100ksps
-145µA at 10ksps
-0.6µA in Full Power-Down Mode
Small Package Size
-16-Pin QSOP (MAX1167)
-24-Pin QSOP (MAX1168)Application-Motor Control
-Industrial Process Control
-Industrial I/O Modules
-Data-Acquisition Systems
-Thermocouple Measurements
-Accelerometer MeasurementsPinout
SpecificationsAVDD to AGND......................................................-0.3V to +6V
DVDD to DGND.....................................................-0.3V to +6V
DGND to AGND..................................................-0.3V to +0.3V
AIN_, REF, REFCAP to AGND..................-0.3V to (AVDD+ 0.3V)
SCLK, CS</a>, DSEL, DSPR, DIN to DGND............-0.3V to +6V
DOUT, DSPX, EOC</a> to DGND.............-0.3V to (DVDD+ 0.3V)
Maximum Current into Any Pin.........................................50mA
Continuous Power Dissipation (TA= +70°C)
16-Pin QSOP (derate 8.3mW/°C above +70°C)..........667mW
24-Pin QSOP (derate 9.5mW/°C above +70°C)..........762mW
Operating Temperature Ranges
MAX116_ _ CE_..................................................0°C to +70°C
MAX116_ _ EE_...............................................-40°C to +85°C
Maximum Junction Temperature....................................+150°C
Storage Temperature Range.........................-65°C to +150°C
Lead Temperature (soldering, 10s)...............................+300°CDescriptionThe MAX1167/MAX1168 low-power, multichannel, 16-bit analog-to-digital converters (ADCs) feature a suc-cessive-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 MAX1167/MAX1168 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 MAX1167/MAX1168 consume only 2.9mA (AVDD=DVDD= +5V) at 200ksps when using an external reference.AutoShutdown™ reduces the supply current to 145µA at 10ksps and to less than 10µA at reduced sampling rates.
The MAX1167 includes a 4-channel input multiplexer, and the MAX1168 accepts up to eight analog inputs. In addition, digital signal processor (DSP)-initiated con-versions are simplified with the DSP frame-sync input and output featured in the device. The MAX1168 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, com-bined with ease of use and an integrated reference, make the MAX1167/MAX1168 ideal for control and data-acqui-sition operations or for other applications with demanding power consumption and space requirements. The MAX1167 is available in a 16-pin QSOP package and the MAX1168 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 device.
MAX1168 Data Sheet
