数据转换器论坛 - 最近的话题

ADS1299: ADS1299 START input sampled on the rising edge or falling edge of fCLK and the maximum inter-device conversion start timing skew

gang Li — Sun, 01 Nov 2026 03:09:30 GMT

Part Number: ADS1299

Hi,

For the ADS1299 (SBAS499C),

1) is the START pin internally synchronized to the master clock fCLK?

2) Is the START input sampled on the rising edge or falling edge of fCLK?

3) What are the required setup and hold times of START relative to fCLK?

4) When multiple ADS1299 devices share the same fCLK and START signal, what is the maximum inter-device conversion start timing skew?

AFE58JD32: I am developing an ultrasound system using the AFE58JD32 analog front end and the TX73H32 transmitter.

ke ma — Thu, 29 Oct 2026 07:41:24 GMT

Part Number: AFE58JD32

Dear Texas Instruments Technical Support Team,

I am developing an ultrasound system using the AFE58JD32 analog front end and the TX73H32 transmitter.

I would like to request the complete technical documentation and development resources for both devices, including the following:

1. Complete datasheets with full package pin/ball assignments and terminal functions.
2. Complete register maps, including register addresses, bit-field definitions, reset values, and access permissions.
3. SPI/serial programming specifications and timing requirements.
4. Power-up, reset, and initialization sequences.
5. AFE58JD32EVM and TX73H32EVM user guides, schematics, and related design files.
6. EVM GUI software, reference source code, register configuration files, and initialization examples, if available.
7. For TX73H32, documentation covering beamformer RAM programming, pattern profiles, delay profiles, and checksum calculation.

I understand that some resources may require an NDA. Please let me know the appropriate process for obtaining these documents and whether any additional documentation is available to qualified customers.

Thank you for your assistance.

Best regards,

RE: AFE58JD32: I am developing an ultrasound system using the AFE58JD32 analog front end and the TX73H32 transmitter.

Eric Ba — Thu, 29 Oct 2026 13:08:19 GMT

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

RE: AFE159RP8: 恳请提供 AFE159RP8 完整开发资料包，包含数据手册、参考设计、寄存器手册、评估板固件、PCB 指南、时序与校准文档等，支撑 8 通道心电采集方案的技术调研、方案比对与项目可行性评审。

Alice — Mon, 26 Oct 2026 04:51:03 GMT

您好，

请直接从产品网页申请，官网会审核您的申请。

如果认为不应该被拒绝申请，请联系客户支持中心申诉。

AFE159RP8: 恳请提供 AFE159RP8 完整开发资料包，包含数据手册、参考设计、寄存器手册、评估板固件、PCB 指南、时序与校准文档等，支撑 8 通道心电采集方案的技术调研、方案比对与项目可行性评审。

?? ? — Mon, 26 Oct 2026 04:27:12 GMT

Part Number: AFE159RP8

我司是动态心电设备研发生产厂商，现有量产型号 ECG_EG01 采用 ADS1292 级联方案。现阶段开展产品升级迭代，拟评估 AFE159RP8 作为新一代心电模拟前端芯片。现申请获取上述全套开发资料，用于新旧方案对比、软硬件移植评估、性能指标验证以及新产品可行性评审。若存在 NDA 受控资料，烦请告知相关申请流程。

ADS1299EEGFE-PDK: 申请资料

wl xie — Wed, 21 Oct 2026 06:17:44 GMT

Part Number: ADS1299EEGFE-PDK

Dear TI Technical Support Team,

I am studying the ADS1299 for personal research and EEG signal acquisition prototyping.

I have reviewed the publicly available ADS1299EEGFE-PDK user guide (SLAU443B), including its schematics, BOM, and PCB layer drawings.

I would like to ask whether the complete Gerber and NC drill files for this evaluation board are available for download or can be shared with individual developers.

I do not currently own the evaluation board, but I would like to build a prototype for learning and testing purposes.

I understand that the original PCB CAD source files may not be publicly available. If the Gerber and drill files can be shared, that would already be very helpful.

Thank you for your time and assistance.

Best regards

RE: ADS1299EEGFE-PDK: 申请资料

Eirwen — Fri, 23 Oct 2026 19:54:41 GMT

很遗憾，没有可以分享的Gerber和drill files 。

RE: ADS122C04: 紧急问题TADS122C04IPWR 温度采集低8位数据为零

Eirwen — Fri, 23 Oct 2026 19:50:55 GMT

请参考评估板回路图BOMLAYOUT和example code对您的软硬件进行检查：

https://www.ti.com.cn/lit/ug/sbau297/sbau297.pdf

github.com/.../ads122c04

ADS122C04: 紧急问题TADS122C04IPWR 温度采集低8位数据为零

lifen liang — Fri, 23 Oct 2026 01:50:23 GMT

Part Number: ADS122C04

紧急问题TADS122C04IPWR 温度采集低8位数据为零

ADC3660: ADC3660Sampling Glitch Filter Design

chao yan — Fri, 23 Oct 2026 03:17:32 GMT

Part Number: ADC3660

目前需要使用ADC3660分时采集5MHz，以及70MHz的信号，公共端是5MHz低通和70MHz带通通过开关切换到如图所是的Ref_CH_OUT端口，器件文件只推荐了dc~30MHz以及30~70MHz的Sampling Glitch Filter，关于这个Sampling Glitch Filter是否有仿真工具？或者推荐一个能够针对目前应用的Sampling Glitch Filter参数。

RE: ADC3660: ADC3660Sampling Glitch Filter Design

Alice — Fri, 23 Oct 2026 07:06:57 GMT

您好，已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

RE: ADS122C04: 紧急问题TADS122C04IPWR 温度采集低8位数据为零

Eirwen — Fri, 23 Oct 2026 05:32:41 GMT

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

RE: ADS1299EEGFE-PDK: 申请资料

Eirwen — Wed, 21 Oct 2026 06:24:52 GMT

Hello, we have received your case and the investigation will take some time. Thank you for your patience.

RE: ADS1248: ADS1248采集数据饱和

fenqiang wang — Wed, 21 Oct 2026 01:48:03 GMT

这是相关的原理图，请查看

ADS1248: ADS1248采集数据饱和

fenqiang wang — Tue, 20 Oct 2026 08:52:35 GMT

Part Number: ADS1248

采用ADS1248测量PT1000，采用3线制，测温范围0-100度，两路激励电流源为100uA，外部参考电阻为10K，当放大倍数为1时，能读取到正常数据，当放大倍数为其他数值时，读到的是满量程数据，通过计算设置的参考电压，共模电压都在正常范围内，烦请分析一下是什么原因导致的

RE: ADS1248: ADS1248采集数据饱和

Alice — Tue, 20 Oct 2026 22:57:27 GMT

您好，
已经收到了您的案例，调查需要些时间，感谢您的耐心等待。

RE: ADS131B24-Q1: ADS131B24Q SPI COM in CRC error

Links — Tue, 20 Oct 2026 07:48:46 GMT

Hello,

We have received your case and are currently investigating it.

The review process may take some time, and we sincerely appreciate your patience in the meantime.

ADS131B24-Q1: ADS131B24Q SPI COM in CRC error

zuotao xu — Tue, 20 Oct 2026 03:02:12 GMT

Part Number: ADS131B24-Q1

Hi teams:

I got an ADS131B24Q in my board, use a uC to communicate with it.I use an logic analyser to check SPI received data is keep 7B D0 which means CRC error.But I use the example code of ADS131B2X to send the date, pls check the pic following:

ADS8568EVM-PDK: ADS8568EVM-PDK

shuyuan chou — Wed, 14 Oct 2026 06:44:48 GMT

Part Number: ADS8568EVM-PDK

HELLO

ti can you send me a

ADS8568EVM-PDK doc

thanks

Bruce

RE: ADS8568EVM-PDK: ADS8568EVM-PDK

Links — Fri, 16 Oct 2026 03:55:44 GMT

您好，

下面的链接可以参考
(+) [参考译文] ADS8568EVM-PDK：MMBInterface Rev B 原理图和串行控制 - 数据转换器（参考译文帖）(Read Only) - 数据转换器（参考译文帖） - E2E™ 设计支持

RE: ADS8568EVM-PDK: ADS8568EVM-PDK

shuyuan chou — Thu, 15 Oct 2026 05:41:37 GMT

我需要一个

ADS8568EVM-PDK

pcb文件或者gerber文件谢谢

RE: ADS1278: 画一个ads1278的开发电路模块

Eirwen — Wed, 14 Oct 2026 07:14:30 GMT

可以参考ADS1278EVM-PDK：

www.ti.com.cn/.../ADS1278EVM-PDK

ADS1278: 画一个ads1278的开发电路模块

benbin wang — Tue, 13 Oct 2026 05:52:33 GMT

Part Number: ADS1278

想要一个ads1278的开发电路模块

RE: ADS8568EVM-PDK: ADS8568EVM-PDK

FRANK1 — Wed, 14 Oct 2026 06:52:37 GMT

感谢您对TI产品的关注！
关于你的咨询，我们正在确认您的问题，感谢您的耐心等待。

RE: ADS1278: 画一个ads1278的开发电路模块

Eirwen — Tue, 13 Oct 2026 06:02:53 GMT

已经收到了您的案例，调查需要些时间，感谢您的耐心等待。