MAX1498 Description
The MAX1447/MAX1496/MAX1498 low-power, 3.5- and 4.5-digit, analog-to-digital converters (ADCs) with integrated light-emitting diode (LED) drivers operate from a single 2.7V to 5.25V power supply. They include an internal reference, a high-accuracy on-chip oscillator, and a multiplexed LED display driver. An internal charge pump generates the negative supply needed to power the integrated input buffers for...
MAX1498 Key Features
- Sigma-Delta ADC Architecture No Integrating Capacitors Required No Autozeroing Capacitors Required >100dB of Simultaneou
- Selectable Input Range of ±200mV or ±2V
- Selectable Voltage Reference: Internal 2.048V or External
- Internal High-Accuracy Oscillator Needs No External ponents
- Automatic Offset Calibration
- On-Demand Enhanced Offset Calibration (MAX1447)
- Operate from a Single 2.7V to 5.25V Supply
- Low Power (Exclude LED-Driver Current) Maximum 744µA Operating Current (MAX1496) Maximum 960µA Operating Current (MAX144
- Multiplexed mon-Cathode LED Drivers Resistor-Programmable Segment Current
- Small 32-Pin, 7mm x 7mm TQFP Package (4.5 Digits), 28-Pin SSOP Package (3.5 Digits)