Overview
The MAX1499ECJ+ is a low-power, 4.5-digit analog-to-digital converter (ADC) with integrated light-emitting diode (LED) drivers, designed and manufactured by Analog Devices Inc./Maxim Integrated. This single-chip solution simplifies system design by integrating an ADC, LED display drivers, and a microcontroller interface. It operates from a single power supply ranging from 2.7V to 5.25V, making it versatile for various applications. The device includes an internal reference, a high-accuracy on-chip oscillator, and a multiplexed LED display driver, ensuring accurate and efficient analog-to-digital conversion.
Key Specifications
| Product Category | Analog to Digital Converters (ADC) |
|---|---|
| Series | MAX149 |
| Package / Case | LQFP-32 |
| Operating Supply Voltage | 2.7 V to 5.25 V |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| Brand | Analog Devices Inc. / Maxim Integrated |
| Height | 1.45 mm (Max) |
| Length | 7.1 mm (Max) |
| Width | 7.1 mm (Max) |
| Unit Weight | 0.027302 oz |
Key Features
- Sigma-Delta Conversion
- High-Speed ADC Architecture
- No Integrating Capacitors Required
- Internal Reference and High-Accuracy On-Chip Oscillator
- Integrated LED Display Driver
- Internal Charge Pump for Single-Supply Operation
- Configurable Input Range (±2V or ±200mV)
- SPI-/QSPI-/MICROWIRE-Compatible Serial Interface
- Continuous Internal Offset-Calibration
- >100dB Rejection of 50Hz and 60Hz Line Noise
- Data Hold and Peak Detection
- Overrange and Underrange Detection
- User-Programmable Low-Battery Monitor
Applications
- Accurate Voltage Measurement
- Quick Current Measurement
- Easy Resistance Testing
- Panel Meters and Multimeters
- Industrial Automation and Control Systems
- Medical Devices Requiring Precise Measurements
- Automotive and Aerospace Applications
Q & A
- What is the operating voltage range of the MAX1499ECJ+?
The MAX1499ECJ+ operates from a single power supply ranging from 2.7V to 5.25V.
- What types of input ranges are configurable for the MAX1499ECJ+?
The ADC is configurable for either a ±2V or ±200mV input range.
- Does the MAX1499ECJ+ require external precision integrating capacitors?
No, the MAX1499ECJ+ does not require external precision integrating capacitors, autozero capacitors, crystal oscillators, or other circuitry commonly used in dual-slope ADCs.
- What is the temperature range for the MAX1499ECJ+?
The device operates over the -40°C to +85°C extended temperature range.
- How does the MAX1499ECJ+ communicate with a microcontroller?
The MAX1499ECJ+ communicates through an SPI-/QSPI-/MICROWIRE-compatible serial interface.
- What are the key features of the integrated LED display driver?
The integrated LED display driver simplifies visual output and includes a multiplexed LED display driver.
- Does the MAX1499ECJ+ have any noise rejection capabilities?
Yes, it offers >100dB rejection of 50Hz and 60Hz line noise.
- What additional functionalities does the MAX1499ECJ+ provide?
The device includes data hold and peak detection, overrange and underrange detection, and a user-programmable low-battery monitor.
- What is the package type and size of the MAX1499ECJ+?
The MAX1499ECJ+ is available in a 32-pin, 7mm x 7mm TQFP package.
- Where can I find evaluation kits for the MAX1499ECJ+?
Evaluation kits for the MAX1499ECJ+ can be ordered from Analog Devices Inc./Maxim Integrated, including the MAX1499EVC16 and MAX1499EVKIT.
