CS5471-BS - Dual 16-Bit Delta-Sigma ADC | Cirrus Logic
MPN： CS5471-BS ✗ 停產CS5471-BS 概覽
A delta-sigma ADC is a voltage-regulating ADC architecture that uses a modulator and digital decimation filtering to convert an analog input into a high-resolution digital result. The CS5471-BS is part of the broader analog-to-digital converter hierarchy, where it combines precision conversion, input filtering, and serial data transfer within a dedicated data-acquisition IC.
The principal specifications include 16-bit resolution, two analog input channels, 2.7 V to 3.5 V operation, delta-sigma conversion, and a 20-SSOP package. Its dual-channel structure supports simultaneous measurement of two related signals, while the integrated decimation filters reduce the digital sampling rate to a rate suitable for power-measurement instrumentation. The serial interface provides a compact connection between the converter and a host controller.
Typical applications include single-phase and multi-channel energy meters, industrial power monitors, load monitoring systems, smart-grid sensing equipment, and laboratory measurement instruments. The device is particularly suited to systems that require accurate digitization of slowly changing or multiplexed analog signals rather than high-frequency waveform capture.
When designing around the CS5471-BS, follow the manufacturer pin-description and application-circuit tables when assigning signals and decoupling components. Keep analog inputs and the serial interface layout consistent with the recommended reference configuration, and account for the supply range of 2.7 V to 3.5 V when designing the surrounding power tree.
This page combines the device identity, package information, functional description, application context, sourcing guidance, and engineering notes for engineers evaluating the CS5471-BS. Use the manufacturer datasheet for the authoritative pin functions, timing limits, electrical characteristics, and recommended operating circuit.
直接替換替代品，適用於 CS5471-BS — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： CS5471-BS （相同外形與佔位） — 差異在於 Package, Resolution.
此產品無可直接替換的替代品。
申請替代品CS5471-BS 最大額定值與電氣特性
| Converter Type | Dual-channel delta-sigma ADC |
| 解析度 | 16 bit |
| Number of Input Channels | 2 channels |
| Supply Voltage Range | 2.7 V to 3.5 V |
| 封裝 | 20-SSOP |
| Integrated Functions | 2 delta-sigma ADCs, decimation filters, and serial interface |
| Application Area | Power measurement |
| Digital Output Resolution | 16 bit |
| Input Type | 2 analog inputs |
| Technology | Delta-sigma modulation |
| 安裝類型 | Surface mount |
| 腳位數 | 20 pins |
CS5471-BS 20-ssop 腳位配置指南
CS5471-BS（20-ssop 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： CS5471-BS.
請參閱 資料表 以查看完整腳位配置。
典型應用
CS5471-BS 適用於 6 應用s: Single-Phase Energy Metering, Industrial Power Monitoring, Smart-Grid Sensing Equipment, Load Monitoring Equipment, Laboratory Power Analyzer, Analog Sensor Interface Modules.
Single-Phase Energy Metering
The CS5471-BS fits single-phase energy metering designs that require two 16-bit analog input channels and integrated signal conditioning in a compact converter. Its two delta-sigma ADCs, decimation filters, and serial interface allow a metering controller to receive processed measurements rather than operate a separate converter and output-filter arrangement. The 2.7 V to 3.5 V supply range supports integration into a tightly regulated measurement electronics section, while the 20-SSOP package limits board area. The manufacturer identifies power measurement as the target application. A practical implementation should use the datasheet reference circuit and verify the input range, reference arrangement, serial timing, and decoupling requirements against the actual current and voltage sensing front end.
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Industrial Power Monitoring
The CS5471-BS is appropriate for industrial power-monitoring equipment that measures two related analog quantities with high-resolution conversion. Its integrated delta-sigma architecture includes both ADCs, decimation filters, and the serial interface, reducing the number of separate signal-chain blocks required near the measurement inputs. The 16-bit output resolution supports precise digital processing of slowly changing power-related signals, and the 2.7 V to 3.5 V operating range fits a controlled low-voltage industrial electronics section. The 20-SSOP footprint provides a compact implementation option. Designers should follow the manufacturer application information for analog input conditioning, filtering, supply bypassing, grounding, and serial-interface timing, while confirming that the selected front end stays within the converter's authorized input limits.
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Smart-Grid Sensing Equipment
The CS5471-BS can support smart-grid sensing equipment in which two analog channels carry related measurements from voltage or current sensing circuits. Its dual-channel, 16-bit delta-sigma architecture converts both signals while integrated decimation filters reduce the need for separate digital filtering stages. The serial interface enables connection to a meter controller or communications processor, while the 2.7 V to 3.5 V supply range and 20-SSOP package support compact board construction. For grid-connected products, analog isolation, safety barriers, surge handling, and calibration belong in the surrounding signal path. The converter should be configured from the manufacturer datasheet to preserve measurement accuracy, expected input conditioning, decimation behavior, and correct serial timing.
推薦
Load Monitoring Equipment
The CS5471-BS is suitable for load-monitoring instruments that digitize two analog channels, such as a voltage measurement and a corresponding current-derived signal. The 16-bit resolution provides a high-resolution digital value for thresholding, energy calculation, trend recording, or protective functions. On-chip decimation filters and the serial interface simplify the path between the analog measurement front end and the supervising controller. Its 20-SSOP package is useful where board area is constrained, and its 2.7 V to 3.5 V operating range integrates with a low-voltage digital section. Implementation should account for input protection, anti-alias filtering, reference stability, grounding, and the conversion latency introduced by delta-sigma filtering. Manufacturer recommended values should govern component selection and layout.
推薦
Laboratory Power Analyzer
The CS5471-BS can serve as the acquisition component in a laboratory power analyzer that evaluates two low-bandwidth analog channels. The dual 16-bit delta-sigma converters are intended for precision measurement rather than high-frequency waveform capture, and their integrated decimation filters help produce a manageable output rate for analysis and calibration routines. The serial interface provides a direct path to a controller or processing engine, while the 20-SSOP package supports compact multi-channel measurement modules. Instrument designers should establish calibration points across the expected operating range and verify analog settling, filter delay, and digital-update timing. Use the manufacturer recommended reference and bypass arrangements to keep measurement results repeatable and to prevent board-level noise from affecting precision conversion results.
推薦
Analog Sensor Interface Modules
The CS5471-BS is applicable to analog sensor interface modules that require two measured inputs, high-resolution conversion, and digital filtering close to the sensor front end. The delta-sigma architecture integrates two ADCs, decimation filters, and a serial interface, allowing a module to transmit processed measurement data to a higher-level controller. Its 2.7 V to 3.5 V supply range is compatible with low-voltage embedded systems, and the 20-SSOP package supports space-constrained modules. Designers should ensure that sensor signals are scaled into the converter's permitted input range and that any excitation or bias circuitry does not inject excessive noise. Follow the manufacturer reference circuit for grounding, decoupling, filtering, and interface timing, then validate the complete channel against the required measurement bandwidth and calibration limits.
推薦
推薦產品摘要
工程參考資料，適用於 CS5471-BS — 比較、設計指引及合規資訊。
選型指南
設計說明
Use the manufacturer reference layout as the basis for analog inputs, supply connections, grounding, and the serial interface. Keep analog and digital return paths separated where the datasheet layout specifies, and place required bypass components close to their associated pins. The integrated decimation filters do not remove the need for correct grounding because board-level coupling can still affect the measured result.
Treat the two analog inputs as precision measurement channels and follow the datasheet's input-conditioning and filtering guidance. Account for delta-sigma conversion latency when relating a digital reading to the instant at which the analog signal was sampled. This consideration is especially important in systems that compare voltage and current channels for real-time power calculations.
Do not substitute an ADC merely because it has 20 pins or a 16-bit nominal resolution. Confirm the pin assignment, analog input range, reference method, serial protocol, electrical timing, and supply requirements before approving a replacement. Use the manufacturer pin table and application circuit for CS5471-BS implementations, and verify calibration after board assembly.
合規資訊
No specific environmental or material-compliance declarations are stated in the component information.
