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Data Converters 
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Analog-to-Digital Converters
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MAX1288
150ksps, 12-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs
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Key Features
Applications/Uses
Parametric specs for Precision ADCs (< 5Msps)
| Resolution (bits) (ADC) | 12 |
| # Input Channels | 1 |
| Conv. Rate (ksps) (max) | 150 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | S.E. Only |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 1 |
| External VREF (V) (max) | 5.25 |
| Unipolar VIN (V) (max) | 4.096 |
| Bipolar VIN (±V) (max) | 2.048 |
| INL (±LSB) | 1 |
| Package/Pins | TDFN/8 |
| Budgetary Price (See Notes) | 3.95 |
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Simplified Block Diagram
Technical Docs
| Data Sheet | 150ksps, 12-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs | Sep 08, 2010 |
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 .
Parameters
Parametric specs for Precision ADCs (<u><</u> 5Msps)
| Resolution (bits) (ADC) | 12 |
| # Input Channels | 1 |
| Conv. Rate (ksps) (max) | 150 |
| Data Bus | SPI |
| ADC Architecture | SAR |
| Diff/S.E. Input | S.E. Only |
| Internal VREF (V) (nominal) | 4.096 |
| External VREF (V) (min) | 1 |
| External VREF (V) (max) | 5.25 |
| Unipolar VIN (V) (max) | 4.096 |
| Bipolar VIN (±V) (max) | 2.048 |
| INL (±LSB) | 1 |
| Package/Pins | TDFN/8 |
| Budgetary Price (See Notes) | 3.95 |
Key Features
- Single-Supply Operation
- +3V (MAX1287/MAX1289)
- +5V (MAX1286/MAX1288)
- Autoshutdown Between Conversions
- Low Power
- 245µA at 150ksps
- 150µA at 100ksps
- 15µA at 10ksps
- 2µA at 1ksps
- 0.2µA in Shutdown
- True-Differential Track/Hold, 150kHz Sampling Rate
- Software-Configurable Unipolar/Bipolar Conversion (MAX1288/MAX1289 Only)
- SPI-/QSPI-/MICROWIRE-Compatible Interface for DSPs and Processors
- Internal Conversion Clock
- 8-Pin SOT23 and 8-Pin TDFN Packages
Applications/Uses
- Flow Meters
- Low-Power Data Acquisition
- Portable Temperature Monitors
- Touch Screens
Description
The MAX1286MAX1289 are low-cost, micropower, serial output 12-bit analog-to-digital converters (ADCs) available in a tiny 8-pin SOT23 and an 8-pin TDFN. The MAX1286/MAX1288 operate with a single +5V supply. The MAX1287/MAX1289 operate with a single +3V supply. The devices feature a successive-approximation ADC, automatic shutdown, fast wakeup (1.4µs), and a high-speed 3-wire interface. Power consumption is only 0.5mW (VDD = +2.7V) at the maximum sampling rate of 150ksps. AutoShutdown™ (0.2µA) between conversions results in reduced power consumption at slower throughput rates. The MAX1286/MAX1287 provide 2-channel, single-ended operations and accept input signals from 0 to VREF. The MAX1288/MAX1289 accept true-differential inputs ranging from 0 to VREF. Data is accessed using an external clock through the 3-wire SPI™-/QSPI™-/MICROWIRE™-compatible serial interface. Excellent dynamic performance, low power, ease of use, and small package size make these converters ideal for portable battery-powered data-acquisition applications, and for other applications that demand low power consumption and minimal space.
Technical Docs
| Data Sheet | 150ksps, 12-Bit, 2-Channel Single-Ended, and 1-Channel True-Differential ADCs | Sep 08, 2010 |
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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