Microchip Technology MCP3551 Analog-to-Digital Converters
Microchip Technology MCP3551 Analog-to-Digital (A/D) Converters are 2.7V to 5.5V low-power, 22-bit Delta-Sigma Analog-to-Digital converters. These converters provide 2.5μVRMS low output noise, 10ppm total unadjusted error, and 3μV offset error. The MCP3551 A/D converters offer high-accuracy, low-noise performance for sensor measurement applications. The MCP3551 converters have an 8-pin MSOP package with automatic internal offset and gain calibration. The differential analog inputs of these converters make the device compatible with a wide variety of sensor industrial control or process control applications.
Features
- 22-bit Delta-sigma ADC
- Small 8-pin MSOP package with automatic internal offset and gate calibration
- Low-output noise of 2.5μVRMS with an effective resolution of 21.9bits
- 3μV offset error
- 2ppm full-scale error
- 6ppm maximum INL error
- Total unadjusted error less than 10ppm
- No digital filter setting time
- Single-command conversions through a 3-wire SPI interface
- Ultra-low conversion current:
- 100μA (typical) at 2.7VDD
- 120μA (typical) at 5VDD
- Differential input with VSS to VDD common-mode range
- 2.7V to 5.5V single-supply operation
- -40°C to +125°C operating temperature range
Applications
- Weigh scales
- Direct temperature measurements
- 6-digit DVMs
- Instrumentation
- Data acquisition
- Strain gauge measurements
Block Diagram
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Published: 2019-12-29
| Updated: 2023-06-13