MAX1257
12-Bit, Multichannel ADCs/DACs with FIFO, Temperature Sensing, and GPIO Ports
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Overview
Features and Benefits
- Reduce Parts Count and Board Space with Fully Integrated System Monitor and Controller
- Monitors 8 (MAX1220) or 16 Voltages (MAX1257/MAX1258) Using 12-Bit, 225ksps ADC
- Controls 8 Output Voltage Level with 12-Bit, Octal, 2µs Settling DAC with Ultra-Low Glitch Energy (4n x VS)
- Measures Temperature with Internal ±1°C Accurate Temperature Sensor
- Options for Using Either Internal 2.5V (MAX1257) Reference, 4.096V (MAX1220/MAX1258) Reference or External Reference
- Includes 4 (MAX1220) or 12 (MAX1257/1258) GPIOs
- Lower Processor Requirements and Minimize Power Consumption and Heat Dissipation
- On-Chip FIFO, Channel-Scan Mode and Data Averaging
- Autoshutdown Between Conversions
- Low-Power ADC
- 2.5mA at 225ksps
- 22µA at 1ksps
- Low-Power DAC: 1.5mA
- TQFN Package with Exposed Pad
- Enable Maximum Dynamic Range with Availability of 2 Analog Power Supply Options: +2.7V to +3.6V (MAX1257) or +4.75V to +5.25V (MAX1220/MAX1258)
Product Details
The MAX1220/MAX1257/MAX1258 is a highly integrated system monitoring and control solution which includes a 16-channel (MAX1257/MAX1258) or 8-ch (MAX1220) 12-bit Analog to Digital Converter (ADC), twelve 12-bit Digital to Analog Converters (DACs), an internal reference, an internal temp sensor, a 4-bit (MAX1220) or 12-bit (MAX1257/MAX1258) GPIO port, and a 25MHz SPI-/QSPI™-/MICROWIRE®- compatible serial interface.
The MAX1220 is available in a 36-pin TQFN package. The MAX1257/MAX1258 are available in 48-pin TQFN package. All devices are specified over the -40°C to +85°C temperature range.
Applications
- Base-Station Control Loops
- Controls for Optical Components
- Data Acquisition Systems
- System Supervision and Control
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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)
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