TLV2541ID - 12-Bit 200 kSPS SAR ADC | Texas Instruments
料号： TLV2541ID ✓ 量产中TLV2541ID 概述
An ADC is an integrated circuit that converts an analog voltage into a digital code. The TLV2541 belongs to the successive-approximation ADC hierarchy, commonly abbreviated SAR ADC, and ultimately falls under data-converter and mixed-signal semiconductor categories. SAR converters are especially useful when moderate resolution, predictable conversion behavior, and a simple serial interface are more important than the very high throughput of a flash converter.
Three principal specifications define the TLV2541: 12-bit resolution, a maximum conversion rate of 200 kSPS, and a single 2.7 V to 5.5 V supply. The converter also provides an integrated conversion clock. Verified performance data includes integral nonlinearity and differential nonlinearity of no more than ±1 LSB, signal-to-noise-and-distortion ratio of 72 dB, and spurious-free dynamic range of 85 dB at 20 kHz.
The device uses a serial output architecture suitable for SPI-compatible and DSP-compatible signal processing. The interface is compatible with TMS320-class processors operating up to 10 MHz according to the manufacturer product description. Serial output reduces the number of signal lines required on a mixed-signal circuit board while allowing the converter to communicate directly with a microcontroller, digital signal processor, or serial communications controller.
Typical uses include battery-powered industrial sensing, portable instrumentation, process-control measurement, low-speed data acquisition, and embedded systems that require analog monitoring without a parallel ADC bus. Its single-channel architecture is appropriate where one analog quantity must be sampled repeatedly. For multichannel systems, several converters can be used with analog multiplexing, provided settling time and acquisition requirements are reviewed carefully.
The primary design consideration is ensuring that the analog input remains within the converter's valid range and that the serial interface timing matches the host processor. Decoupling, grounding, input-source impedance, and acquisition-time requirements should be evaluated against the manufacturer datasheet. Automatic power-down can reduce system consumption, but repeated wake-up intervals may affect effective sampling throughput.
This page consolidates verified manufacturer and distributor information, drop-in same-family options, technical comparisons, and practical design guidance so engineers can assess the TLV2541ID without relying only on a distributor parameter table.
直接替换替代料： TLV2541ID ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
TLV2541CD
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV2541QD
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV2541IDG4
✅ 直接替换📋 参考替代料（不在目录中）
TLV2541ID 最大额定值与电气特性
| 分辨率 | 12 bit |
| Maximum Conversion Rate | 200 kSPS |
| Number of Input Channels | 1 channel |
| Conversion Architecture | Successive-approximation register (SAR) |
| Output Interface | Serial, SPI/DSP-compatible |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Processor Compatibility | TMS320-compatible up to 10 MHz |
| Conversion Clock | Built in |
| Integral Nonlinearity | ±1 LSB maximum |
| Differential Nonlinearity | ±1 LSB maximum |
| Signal-to-Noise-and-Distortion Ratio | 72 dB |
| Spurious-Free Dynamic Range | 85 dB at 20 kHz |
| Low-Power Feature | Autopower down |
| Process Technology | CMOS |
| 封装 | 8-pin SOIC |
| 安装类型 | Surface mount |
| Input Type | Single-ended |
TLV2541ID 8-pin soic 引脚配置指南
TLV2541ID（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： TLV2541ID.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TLV2541ID 适用于 6 应用s: Battery-Powered Sensor Interface, Industrial Process Monitoring, Portable Data Acquisition, Embedded Control System, Audio and Communication Monitoring, Low-Power Environmental Logger.
Battery-Powered Sensor Interface
The TLV2541ID fits a battery-powered sensor node that converts one analog measurement to a 12-bit digital value. Its 2.7 V to 5.5 V single-supply range supports common low-energy rails, while automatic power-down can reduce consumption between measurements. The 200 kSPS conversion rate provides ample speed for temperature, pressure, and slow chemical sensors. Designers should account for wake-up timing, reference accuracy, and the input-settling requirements of the selected sensor.
推荐
Industrial Process Monitoring
The TLV2541ID is appropriate for acquiring one slowly changing process variable such as pressure, level, or temperature. Its 12-bit resolution, ±1 LSB maximum integral and differential nonlinearity, and 72 dB SINAD provide useful measurement quality for diagnostic and control systems. The single serial interface reduces wiring compared with a parallel ADC, while the 8-pin SOIC package remains straightforward to assemble. Input protection and isolation must be added where field wiring exceeds the converter's ratings.
推荐
Portable Data Acquisition
The TLV2541ID can serve as the measurement front end in portable instrumentation requiring one analog channel and digital data transfer to a processor. Its 200 kSPS maximum rate supports rapid sampling of sensor or waveform data, while the serial output limits connector and board-space requirements. For handheld equipment, the 2.7 V minimum supply voltage is useful, but overall accuracy will also depend on voltage reference quality, source impedance, and the selected analog front end.
推荐
Embedded Control System
The TLV2541ID fits an embedded controller that must periodically observe an analog feedback signal. Its built-in conversion clock removes the need for an external sampling clock, and the SPI/DSP-compatible serial interface can connect efficiently to a microcontroller or digital signal processor. The single-channel architecture is economical for one feedback loop. For multiple control variables, an analog multiplexer or multiple converters can expand the channel count if acquisition and crosstalk requirements are satisfied.
推荐
Audio and Communication Monitoring
The TLV2541ID can monitor an audio or communications signal level when only slow envelope measurement is required. Its 85 dB spurious-free dynamic range at 20 kHz and 12-bit resolution provide sufficient headroom for many supervisory measurement tasks. The serial interface allows sampled results to enter a digital signal processor without a parallel bus. Designers should add appropriate anti-alias filtering and avoid assuming that a 200 kSPS converter is suitable for direct wideband audio waveform capture.
推荐
Low-Power Environmental Logger
The TLV2541ID is well suited to periodic logging in an environmental monitoring device because it combines a compact SOIC package, low-power operation, and automatic power-down capability. The 12-bit result provides sufficient resolution for many slow environmental measurements, and the 200 kSPS maximum rate permits closely spaced samples when required. The design should keep the converter powered only long enough to acquire and transfer data, while confirming that the sensor, reference, and input network settle correctly at each wake-up.
推荐
推荐产品汇总
工程参考数据： TLV2541ID ——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 | TLV2541CD | TLV2541QD | TLV2541IDG4 |
|---|---|---|---|---|
| Package | 8-pin SOIC | 8-pin SOIC - same | 8-pin SOIC - same | 8-pin SOIC - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit |
| Maximum Conversion Rate | 200 kSPS | 200 kSPS | 200 kSPS | 200 kSPS |
| Number of Input Channels | 1 channel | 1 channel | 1 channel | 1 channel |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Output Interface | Serial, SPI/DSP-compatible | Serial, SPI/DSP-compatible | Serial, SPI/DSP-compatible | Serial, SPI/DSP-compatible |
| Integral Nonlinearity | ±1 LSB maximum | ±1 LSB maximum | ±1 LSB maximum | ±1 LSB maximum |
| Signal-to-Noise-and-Distortion Ratio | 72 dB | 72 dB | 72 dB | 72 dB |
| Spurious-Free Dynamic Range | 85 dB at 20 kHz | 85 dB at 20 kHz | 85 dB at 20 kHz | 85 dB at 20 kHz |
| Conversion Clock | Built in | Built in | Built in | Built in |
关键差异点
- Matched conversion performance across verified same-family alternatives （对比 TLV2541CD)
- Same-package reuse for an existing 8-SOIC layout （对比 TLV2541QD)
- Serial interface reduces board routing compared with a parallel ADC （对比 TLV2541IDG4)
设计说明
Place the TLV2541ID close to the analog source and keep the analog trace short, particularly when the source impedance is high. The built-in conversion clock does not remove the need for adequate input settling. Review the acquisition time and source-impedance limits in the manufacturer datasheet before adding series resistance, and route digital clock and data lines away from the analog input to reduce conversion-coupled noise.
Use the manufacturer's recommended supply and reference bypassing arrangement with short ground returns. Because automatic power-down can interrupt repeated sampling, confirm the minimum on-time, startup behavior, and effective throughput in the datasheet. For low-power systems, power only the analog section when needed, but verify that reference settling and input acquisition still meet the required timing.
Treat the serial clock as a potentially high-speed signal even though the ADC conversion rate is only 200 kSPS. Use a controlled-impedance route where appropriate, avoid long unprotected branches, and ground the interface return path properly. The serial interface is compatible with SPI/DSP systems up to the stated TMS320 operating condition of 10 MHz, but host-controller timing must still be checked against the converter's data-valid and clock-edge requirements.
Do not infer that the 2.7 V to 5.5 V supply range is also the permitted analog-input range. Signal amplitude, common-mode limits, and source impedance must be checked separately in the datasheet. Likewise, 12-bit nominal resolution does not guarantee 12-bit absolute accuracy if the reference, analog front end, or PCB layout introduces additional error. Verify the full signal chain rather than relying on converter resolution alone.
合规信息
The supplied excerpts do not contain explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. No compliance status has been inferred from the manufacturer or distributor pages.
