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Data Converters 
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Analog-to-Digital Converters
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Key Features
Applications/Uses
Parametric specs for Precision ADCs (< 5Msps)
| Resolution (bits) (ADC) | 16 |
| # Input Channels | 4 |
| Conv. Rate (ksps) (max) | 200 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | S.E. Only |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 3.8 |
| External VREF (V) (max) | 5.25 |
| Unipolar VIN (V) (max) | 4.096 |
| INL (±LSB) | 3 |
| Package/Pins | QSOP/16 |
| Budgetary Price (See Notes) | 17.52 |
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Parameters
Parametric specs for Precision ADCs (<u><</u> 5Msps)
| Resolution (bits) (ADC) | 16 |
| # Input Channels | 4 |
| Conv. Rate (ksps) (max) | 200 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | S.E. Only |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 3.8 |
| External VREF (V) (max) | 5.25 |
| Unipolar VIN (V) (max) | 4.096 |
| INL (±LSB) | 3 |
| Package/Pins | QSOP/16 |
| Budgetary Price (See Notes) | 17.52 |
Key Features
- 16-Bit Resolution, No Missing Codes
- +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
- 3.6mA at 200ksps
- 1.85mA at 100ksps
- 185µA at 10ksps
- 0.6µA in Full Power-Down Mode
- Small Package Size
- 16-Pin QSOP (MAX1167)
- 24-Pin QSOP (MAX1168)
Applications/Uses
- Accelerometer Measurements
- Data Acquisition Systems
- Industrial I/O Modules
- Industrial Process Controls
- Motor Control
- Thermocouple Measurements
Description
The MAX1167/MAX1168 low-power, multichannel, 16-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 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 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 MAX1167 includes a 4-channel input multiplexer, and the MAX1168 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 MAX1168. 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, combined with ease of use and an integrated reference, make the MAX1167/MAX1168 ideal for control and data-acquisition 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 MAX1168.
The MAX1167/MAX1168 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 MAX1167 includes a 4-channel input multiplexer, and the MAX1168 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 MAX1168. 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, combined with ease of use and an integrated reference, make the MAX1167/MAX1168 ideal for control and data-acquisition 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 MAX1168.
Technical Docs
Support & Training
Search our knowledge base for answers to your technical questions.
Filtered SearchOur dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .
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