CS5550
2-Channel, Low-Cost A/D Converter for Electronic Weigh-Scale Applications
Overview
| Resolution (bits) | Throughput (Sps) | Integral Linearity (%FS) | Differential Linearity (±LSB) | Number of Channels | Power Consumption (mW) | Package |
|---|
| 24 |
2440 ‑ 4000 |
0.01 % |
NMC |
2 |
21 |
24 SSOP |
Description
The CS5550 is an easy-to-design, value-priced, highly integrated solution with a small footprint. The CS5550 enables weigh-scale manufacturers to provide accurate, cost-effective solutions for their customers. This new IC from Cirrus Logic is an integrated device that combines two Delta-Sigma analog-to-digital (A/D) converters, two amplifiers and a serial interface on a single chip.
For communication with a microcontroller, the IC features a bi-directional serial interface, which is initialized and fully functional upon reset. The device also offers excellent temperature stability for long-life operation. The CS5550 delivers precise measurements and is ideal for electronic weigh-scale applications.
Features
- Output word rate: 2.44 kSPS to 4.88 kSPS
- 24-bit A/D registers on both channels
- Channel 1: 13 ENOBs
- Channel 2: 10 ENOBs
- Power consumption: <12 mW
- Adjustable input range on channel 1
- Ground-referenced signals with single supply
- On-chip 2.5 V reference (25 ppm/°C typ.)
- Simple 3-wire digital serial interface
- Power supply configurations
- VA+ = +5 V
- AGND = 0 V
- VD+ = +3.3 V to +5 V
- Offset and gain calibrations on both channels
- Package: 24-pin SSOP; lead-free assembly
Diagram
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