MAX1276
1.8Msps, Single-Supply, Low-Power, True-Differential, 12-Bit ADCs with Internal Reference
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Overview
Features and Benefits
- 1.8Msps Sampling Rate
- Only 55mW (typ) Power Dissipation
- Only 1µA (max) Shutdown Current
- High-Speed, SPI-Compatible, 3-Wire Serial Interface
- 70dB S/(N + D) at 525kHz Input Frequency
- Internal True-Differential Track/Hold (T/H)
- Internal 4.096V Reference
- No Pipeline Delays
- Small 12-Pin TQFN Package
Product Details
The MAX1276/MAX1278 are low-power, high-speed, serial-output, 12-bit, analog-to-digital converters (ADCs) that operate at up to 1.8Msps and have an internal reference. These devices feature true-differential inputs, offering better noise immunity, distortion improvements, and a wider dynamic range over single-ended inputs. A standard SPI™/QSPI™/MICROWIRE™ interface provides the clock necessary for conversion. These devices easily interface with standard digital signal processor (DSP) synchronous serial interfaces.
The MAX1276/MAX1278 operate from a single +4.75V to +5.25V supply voltage. The MAX1276/MAX1278 include a 4.096V internal reference. The MAX1276 has a unipolar analog input, while the MAX1278 has a bipolar analog input. These devices feature a partial power-down mode and a full power-down mode for use between conversions, which lower the supply current to 2mA (typ) and 1µA (max), respectively. Also featured is a separate power-supply input (VL), which allows direct interfacing to +1.8V to VDD digital logic. The fast conversion speed, low-power dissipation, excellent AC performance, and DC accuracy (±1.25 LSB INL) make the MAX1276/MAX1278 ideal for industrial process control, motor control, and base-station applications.
The MAX1276/MAX1278 come in a 12-pin TQFN package, and are available in the extended (-40°C to +85°C) temperature range.
Applications
- Bill Validation
- Communications
- Data Acquisition
- Motor Control
- Portable Instrumentation
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| MAX1276ETC+ | Material Declaration | Reliability Data | 12-LFCSP-4X4X0.75 | |
| MAX1276ETC+T | Material Declaration | Reliability Data | 12-LFCSP-4X4X0.75 | |
| Wafer Fabrication Data |
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