TLV1572ID - 10-Bit 1.25 MSPS Low-Power SAR ADC | TI
부품 번호: TLV1572ID ✓ 활성TLV1572ID 개요
A SAR ADC is a sampling data-converter category that compares the sampled input voltage against an internal DAC through a sequence of binary decisions. Unlike a flash or pipeline ADC, the SAR architecture generally requires less power while providing predictable conversion behavior. The TLV1572ID belongs to the broader ADC, data-converter, signal-processing IC, and semiconductor hierarchies, making it appropriate for embedded measurement, control, and industrial data-acquisition equipment.
The principal performance features are the 1.25 MSPS maximum sampling rate, 10-bit resolution, single-ended input architecture, SPI-compatible serial interface, and automatic power-down capability. According to the manufacturer information, typical power consumption is 8 mW at a 3 V supply and 25 mW at a 5 V supply. These characteristics suit systems that need moderate conversion speed and compact implementation without the power and cost of a high-speed flash ADC.
The TLV1572ID combines a sampling-and-hold input stage, internal 10-bit DAC, comparator, control logic, and serial output interface in an 8-pin SOIC. Automatic power-down helps reduce consumption when conversions are infrequent. The 59 dB SNR and distortion figure at 500 kHz provides a useful basis for evaluating signal-chain performance, while the stated DNL and INL limits characterize unipolar conversion linearity.
Typical applications include industrial process monitoring, sensor signal acquisition, portable instrumentation, embedded control systems, battery-powered measurement equipment, and low-speed data loggers. Its single 2.7 V to 5.5 V supply range also allows it to operate directly from common 3 V and 5 V system rails. The 1.25 MSPS throughput provides sufficient speed for many control-loop and waveform-sampling tasks.
Designers should verify the input range, reference behavior, digital-interface timing, and acquisition requirements against the manufacturer datasheet before finalizing a PCB. Input-source impedance, source settling, sampling capacitance, clock jitter, and digital return paths can materially affect practical conversion accuracy. Automatic power-down should also be accounted for when calculating wake-up latency and acquisition-cycle timing.
This page consolidates verified manufacturer and distributor information, drop-in candidate analysis, application guidance, and design notes. It highlights the TLV1572ID's low-power SAR architecture and 1.25 MSPS throughput while clearly identifying the electrical details that still require datasheet confirmation.
드롭인 대체품: TLV1572ID — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: TLV1572ID (동일 폼 팩터 및 풋프린트) — 차이점: Number of Input Channels, Operating Temperature Range, Package, Resolution.
TLV1504ID
✅ 드롭인 ⚠️ 사양 미검증가격 문의
데이터시트 보기 →TLC2551ID
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
TLV1572ID 최대 정격 & 전기적 특성
| ADC Architecture | Successive approximation register (SAR) |
| 분해능 | 10 bits |
| Maximum Throughput | 1.25 MSPS |
| Number of Input Channels | 1 channel |
| Input Architecture | Single-ended |
| Analog Input Range | 0 V to VCC |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Power Consumption at 3 V | 8 mW |
| Power Consumption at 5 V | 25 mW |
| Differential Nonlinearity | < ±1 LSB |
| Integral Nonlinearity | < ±1 LSB |
| Signal-to-Noise and Distortion Ratio | 59 dB at 500 kHz input |
| Digital Interface | SPI-compatible serial interface |
| Power-Down Feature | Automatic power-down |
| 동작 온도 범위 | -40 °C to +85 °C |
| 패키지 | 8-pin SOIC (D) |
| 실장 유형 | Surface mount |
TLV1572ID 8-pin soic (d) 핀 구성 가이드
TLV1572ID(8-pin soic (d) 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: TLV1572ID.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
TLV1572ID 적합 용도: 6 애플리케이션s: Industrial Sensor Signal Acquisition, Portable Battery-Powered Measurement, Embedded Process Control, Waveform and Pulse Sampling, Automated Test Equipment, Data Logging and Sensor Hubs.
Industrial Sensor Signal Acquisition
The TLV1572ID fits industrial sensor-acquisition modules that must convert a single analog measurement rapidly while keeping system power moderate. Its 10-bit resolution provides 1,024 quantization levels, and the 1.25 MSPS conversion rate is substantially faster than slow general-purpose SAR converters. According to the Texas Instruments manufacturer datasheet, differential and integral nonlinearity are each below ±1 LSB. Place the sensor signal through an appropriate anti-alias and conditioning network, connect the converter to the 0 V to VCC input, and keep the input return path short to reduce errors from the 59 dB SNR and distortion specification.
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Portable Battery-Powered Measurement
The TLV1572ID is appropriate for portable measurement equipment where a 3 V rail limits available power. The Texas Instruments manufacturer datasheet lists typical consumption of 8 mW at 3 V and 25 mW at 5 V, while automatic power-down supports lower activity in intermittent measurement systems. Its 1.25 MSPS rate permits rapid capture without requiring the flash-converter architecture of a substantially faster ADC. In a battery design, use voltage-tolerant signal conditioning, account for reference and sensor drift, and confirm wake-up latency so that automatic power-down does not compromise the intended acquisition interval.
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Embedded Process Control
The TLV1572ID can serve as the feedback ADC in an embedded process-control loop where a single analog input must be sampled repeatedly at useful control rates. Its 1.25 MSPS throughput provides substantially more conversion capability than required by many temperature, pressure, and slow actuator feedback loops, while the 10-bit result keeps data processing compact. According to the Texas Instruments manufacturer datasheet, the converter accepts a 0 V to VCC input and operates from 2.7 V to 5.5 V. Validate sensor settling, anti-alias filtering, isolation requirements, and control-loop timing before using it as the only measurement element in a safety-relevant loop.
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Waveform and Pulse Sampling
The TLV1572ID is suitable for low-to-moderate-rate waveform sampling where 1.25 MSPS is sufficient and a 10-bit output is adequate for amplitude, timing, or envelope analysis. Its single-ended input is directly suited to conditioned analog waveforms referenced to ground. The documented 59 dB signal-to-noise and distortion ratio at a 500 kHz input provides a useful baseline when evaluating harmonic and noise content. Use an input driver capable of settling the converter's sampling network, add an anti-alias filter before the ADC, and treat the serial-interface timing and acquisition delay as part of the complete sampling-system error budget.
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Automated Test Equipment
The TLV1572ID can be used in compact automated test equipment for digitizing one analog channel at 1.25 MSPS. The converter's small 8-pin SOIC package, single 2.7 V to 5.5 V supply, and documented automatic power-down support space-constrained instrumentation. According to the Texas Instruments manufacturer datasheet, DNL and INL are each below ±1 LSB, which supports repeatable digital readings when the source is well conditioned. For production test, calibrate offset, gain, and reference errors, control source impedance, and avoid using the ADC's supply-relative input limit as a substitute for an explicit front-end range check.
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Data Logging and Sensor Hubs
The TLV1572ID fits sensor hubs and compact data loggers that sample one analog channel at regular intervals. The 1.25 MSPS capability provides useful margin for burst acquisition, while automatic power-down can reduce consumption between records. According to the Texas Instruments manufacturer datasheet, the device operates from 2.7 V to 5.5 V and consumes 8 mW at 3 V under typical conditions. A practical logger should synchronize sample timing with the serial clock, account for conversion and interface latency, and store scaling metadata. Sensor excitation, ground offsets, and reference drift must be calibrated separately because ADC resolution does not remove analog-chain error.
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추천 제품 요약
엔지니어링 참조 데이터: TLV1572ID — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | TLV1504ID | TLC2551ID |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-pin SOIC (D) | 8-pin SOIC (D) | 8-pin SOIC (D) |
| ADC Architecture | SAR | SAR | SAR |
주요 차별점
- Lower throughput than the closest same-package family candidate (vs TLV1504ID)
- Documented low-power operating points (vs TLC2551ID)
- Compact 8-pin SOIC implementation (vs TLC2551ID)
설계 노트
Drive the single-ended analog input through a source that can settle the converter's internal sampling network within the acquisition interval required for 1.25 MSPS operation. Place an RC anti-alias network close to the ADC input, keep the path compact, and return the signal ground directly to the device ground rather than routing it around the digital section. Verify settling with the oscilloscope at the ADC pin. The verified SNR and distortion figure of 59 dB applies to specified conditions and should not be treated as a complete front-end noise budget.
Use the manufacturer-recommended supply and reference-decoupling arrangement, including a short ground connection and low-ESR ceramic capacitors placed at the relevant pins. The TLV1572ID operates from 2.7 V to 5.5 V, and verified typical consumption is 8 mW at 3 V and 25 mW at 5 V. Account for digital-interface and reference currents when sizing the supply. If automatic power-down is used, verify wake-up timing and whether the external reference and analog network require additional settling before the first valid conversion.
Do not infer pin compatibility from an identical 8-pin SOIC outline. The supplied verified excerpts did not provide complete pin names, so verify analog input, supply, reference, clock, chip-select, data output, and clock output against the current manufacturer datasheet. In particular, different SAR ADC families can use the same package while assigning interface pins differently. Also verify the allowable input range relative to VCC, startup behavior, acquisition timing, and digital logic levels before releasing a replacement to production.
규정 준수 정보
The verified excerpts identify an industrial-temperature Texas Instruments device but do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals compliance. The ordering suffix D denotes the 8-pin SOIC package and does not by itself establish compliance.