TLV2541ID - 12-Bit 200 kSPS SAR ADC | Texas Instruments
부품 번호: TLV2541ID ✓ 활성TLV2541ID 개요
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.
드롭인 대체품: TLV2541ID — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
TLV2541CD
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TLV2541QD
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
TLV2541IDG4
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TLV2541ID 최대 정격 & 전기적 특성
| 분해능 | 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 |
| 패키지 | 8-pin SOIC |
| 실장 유형 | Surface mount |
| Input Type | Single-ended |
TLV2541ID 8-pin soic 핀 구성 가이드
TLV2541ID(8-pin soic 패키지)의 핀 구성입니다. 이 아날로그 부품에는 입력, 출력, 전원 공급 핀이 있습니다. 오프셋 널, 보상, 인에이블 핀 구성은 제조사 데이터시트를 참조하십시오. 신호 컨디셔닝 및 증폭기 회로에 이상적입니다.
다음에 대한 상세 핀아웃 데이터 없음: TLV2541ID.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
TLV2541ID 적합 용도: 6 애플리케이션s: 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.
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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.
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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.
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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.
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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.
추천
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.
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추천 제품 요약
엔지니어링 참조 데이터: TLV2541ID — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | 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 |
주요 차별점
- Matched conversion performance across verified same-family alternatives (vs TLV2541CD)
- Same-package reuse for an existing 8-SOIC layout (vs TLV2541QD)
- Serial interface reduces board routing compared with a parallel ADC (vs TLV2541IDG4)
설계 노트
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.
규정 준수 정보
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.
