CS5511-AS - 16-Bit Delta-Sigma ADC | Cirrus Logic
料号： CS5511-AS ✗ 停产CS5511-AS 概述
A delta-sigma ADC is a voltage regulator for digital measurement: it oversamples an analog input and uses digital filtering and charge balancing to convert that voltage into a high-resolution numerical result. Within the broader hierarchy, a delta-sigma ADC is a data-converter IC, a form of ADC/DAC, and ultimately part of a signal-chain semiconductor system. This approach prioritizes resolution, noise rejection, and integration when very high conversion rates are unnecessary.
The CS5511-AS provides 16-bit nominal resolution, differential analog inputs, and an integrated oscillator. Published family information identifies linearity error as 0.0015% of full scale and noise-free resolution up to 17 bits. The internal oscillator removes the need for an external clock source, reducing component count and making the converter suitable for standalone measurement instruments. Its 8-pin SOIC format supports compact, surface-mount PCB designs.
The CS5510, CS5511, CS5512, and CS5513 devices use charge-balance techniques, but they occupy different performance positions within the family. The CS5510 and CS5511 are specified for 16-bit performance, while the CS5512 and CS5513 target 20-bit performance. Because resolution, offset, gain, filtering, and interface requirements affect the complete measurement chain, the converter should be selected according to the required accuracy rather than package size alone.
Typical uses include digital weighing systems, process-control transmitters, pressure and temperature instrumentation, industrial sensor interfaces, and low-speed data-acquisition panels. In these applications, the internal clock and integrated converter reduce external circuitry, while the differential input architecture can help reject common-mode interference when implemented with suitable source circuitry.
For a robust implementation, verify the analog input range, differential-versus-single-ended configuration, digital interface format, reference voltage, and filtering requirements in the manufacturer datasheet before finalizing the PCB. Allow space for all eight pins, connect the supply and ground pins according to the recommended layout, and evaluate input settling time before using the converter for multiplexed channels.
This page organizes the CS5511-AS family specifications, practical application guidance, package information, sourcing options, and compatible family alternatives into one engineering-focused reference. It also highlights the decisions that matter when moving between 16-bit and 20-bit members of the same converter family.
直接替换替代料： CS5511-AS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
CS5511-ASZ
✅ 直接替换📋 参考替代料（不在目录中）
CS5510-AS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CS5512-AS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CS5513-AS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
CS5511-AS 最大额定值与电气特性
| Converter Type | Delta-sigma ADC |
| Nominal Resolution | 16 bit |
| Noise-Free Resolution | Up to 17 bit |
| Linearity Error | 0.0015% FS |
| Input Architecture | Differential |
| Oscillator | Internal |
| Conversion Technique | Charge balance |
| 封装 | 8-pin SOIC |
| 安装类型 | Surface mount |
CS5511-AS 8-pin soic 引脚配置指南
CS5511-AS（8-pin soic 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： CS5511-AS.
请参阅 数据手册 以查看完整引脚配置。
典型应用
CS5511-AS 适用于 6 应用s: Digital Weighing Systems, Industrial Process-Control Instrumentation, Pressure and Force Sensor Interfaces, Temperature and Environmental Monitoring, Low-Speed Data-Acquisition Panels, Portable Metering and Field Instruments.
Digital Weighing Systems
The CS5511-AS suits digital load-cell and weighing applications that require higher resolution than a conventional low-resolution integrating converter but do not need high-speed sampling. Its 16-bit nominal resolution, 0.0015% full-scale family linearity specification, and differential input arrangement are useful for bridge-based measurement front ends. The internal oscillator simplifies standalone scale-controller hardware, while the 8-pin SOIC package leaves space for regulated supply, input filtering, calibration storage, and a display or communications controller on the same board.
推荐
Industrial Process-Control Instrumentation
The CS5511-AS is appropriate for slow-changing process variables such as pressure, temperature, level, and flow when the controller needs reliable 16-bit digital results. Its delta-sigma charge-balance architecture suits precision acquisition rather than waveform acquisition, and its differential inputs can support isolation and common-mode rejection in carefully designed sensor circuits. The internal oscillator reduces clock-component count, while the compact 8-pin SOIC footprint leaves board space for signal conditioning, protection, and industrial interface circuitry.
推荐
Pressure and Force Sensor Interfaces
The CS5511-AS can digitize low-level outputs from strain-gauge, piezoresistive, and force-sensitive sensors when the measurement bandwidth is modest. The 16-bit nominal resolution provides 65,536 nominal code levels, and the differential input architecture is compatible with front ends that convert sensor excitation and differential outputs into a voltage suitable for the ADC. The internal oscillator supports compact sensor-to-digital modules, but designers should evaluate excitation drift, reference accuracy, input noise, and settling time as part of the complete error budget.
推荐
Temperature and Environmental Monitoring
The CS5511-AS can serve as the acquisition element in temperature, humidity, gas, and environmental monitoring equipment whose sensor outputs change more slowly than the converter's measurement interval. Its 16-bit resolution provides finer numerical spacing than many 12-bit or lower-resolution systems, while the internal oscillator avoids a separate clock source. The SOIC package is practical for compact sensor nodes, although the complete system must include suitable excitation, low-noise reference, input protection, and calibration to achieve useful environmental accuracy.
推荐
Low-Speed Data-Acquisition Panels
The CS5511-AS is suited to low-speed acquisition modules that monitor several slowly changing analog channels and prioritize resolution over throughput. The 16-bit converter can provide a compact acquisition front end, and its internal oscillator simplifies synchronization with a digital controller. An 8-pin SOIC package helps preserve board area in multichannel modules, but multiplexed designs must allow sufficient settling time between channel changes and should use the pin-description table to implement routing and guard traces without introducing excessive coupling.
推荐
Portable Metering and Field Instruments
The CS5511-AS is useful in handheld or field-mounted meters that digitize a bridge, resistive, or conditioned sensor signal. Its internal oscillator reduces the number of external timing components, and the 8-pin SOIC footprint is compatible with compact surface-mount assemblies. For battery-powered instruments, evaluate the converter's complete operating-current profile and analog settling requirements before finalizing the power budget. The same family also provides a path to compare 16-bit operation against the CS5512-AS and CS5513-AS 20-bit members when dynamic range becomes the limiting factor.
推荐
推荐产品汇总
工程参考数据： CS5511-AS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | CS5511-ASZ | CS5510-AS | CS5512-AS | CS5513-AS |
|---|---|---|---|---|---|
| Brand | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic | Cirrus Logic |
| Package | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC | 8-pin SOIC |
| Converter Type | Delta-sigma ADC | Sigma-delta ADC | Delta-sigma ADC | Delta-sigma ADC | Delta-sigma ADC |
| Nominal Resolution | 16 bit | 16 bit | 16 bit | 20 bit | 20 bit |
关键差异点
- Maintains the same nominal resolution as the documented 8-SOIC alternative （对比 CS5511-ASZ)
- Provides a lower-resolution path when 20-bit conversion is unnecessary （对比 CS5512-AS)
- Combines an internal clock with differential input architecture （对比 CS5510-AS)
设计说明
Place the CS5511-AS close to the analog input, reference, and supply connections, and route high-impedance sensor traces away from digital clocks and switching nodes. Keep the complete eight-pin footprint accessible for inspection and rework. Because the pin-description table is required to confirm every terminal, use the exact manufacturer package drawing when defining the footprint rather than relying on a generic 8-pin SOIC drawing.
Treat the differential analog inputs as a precision signal path. Use symmetrical routing where practical, terminate unused inputs according to the manufacturer recommendations, and keep input filtering components close to their associated pins. Confirm the differential input range and common-mode limits before defining sensor excitation and protection networks; incorrect range assumptions can dominate the converter's 16-bit resolution.
Do not equate nominal 16-bit resolution with 16-bit effective system accuracy. Offset, gain error, reference drift, excitation variation, settling time, and input noise all contribute to the final error budget. Use the family's 0.0015% full-scale linearity figure only for the converter specification, and perform end-to-end calibration when the instrument is expected to benefit from cancellation of systematic error.
合规信息
No component-specific environmental, material, or automotive qualification statements are stated in the listed product information.
