TLV571CPW - 8-Bit 1.25 MSPS ADC | Texas Instruments
料号： TLV571CPW ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TLV571CPW 概述
An ADC is a data-acquisition building block that converts an analog voltage into a numeric value for computation, measurement, control, or display. A single-channel 8-bit parallel ADC is useful when the design prioritizes low interface complexity and moderate resolution rather than high channel count or maximum conversion throughput. The TLV571 belongs to the ADC/DAC hierarchy and the broader data-converter semiconductor category.
The TLV571CPW accepts an analog input range from 0 V to AVDD and supports supply voltages from 2.7 V to 5.5 V. Its differential and integral nonlinearity errors are each specified as less than plus or minus 0.5 LSB. The manufacturer lists an internal oscillator, a DSP- and microcontroller-compatible parallel interface, and automatic or software power-down features. These characteristics make it appropriate for compact embedded measurement systems where the host controller can sample parallel data directly.
The device is designed for low-power operation, with listed power consumption of 12 mW at 3 V and 35 mW at 5 V. Automatic power-down is specified at a maximum of 1 mA, while software power-down is specified at a maximum of 10 mA. These values should be checked against the system power budget and control-signal requirements in the manufacturer datasheet, particularly when the converter is operated intermittently.
Typical applications include industrial sensor acquisition, battery-powered instrumentation, consumer control boards, embedded measurement modules, DSP front ends, and microcontroller-based monitoring systems. The 8-bit resolution is most appropriate for coarse measurements, threshold sensing, digital control feedback, and system monitoring rather than precision laboratory measurement. The parallel bus also requires adequate board-routing space and host-controller I/O resources.
A key design consideration is signal conditioning and reference integrity. The analog input must remain within the specified 0 V to AVDD range, and the host system should account for ADC input settling, source impedance, sampling timing, and digital-bus timing. This page combines verified manufacturer and distributor information with practical implementation guidance; unavailable pricing, pin-level details, and replacement data are explicitly marked rather than estimated.
直接替换替代料： TLV571CPW ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
TLV571CPW 最大额定值与电气特性
| 分辨率 | 8 bit |
| 采样率 | 1.25 MSPS |
| Number of Channels | 1 channel |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Analog Input Range | 0 V to AVDD |
| Differential Nonlinearity | < ±0.5 LSB |
| Integral Nonlinearity | < ±0.5 LSB |
| Power at 3 V | 12 mW |
| Power at 5 V | 35 mW |
| Automatic Power-Down Current | 1 mA maximum |
| Software Power-Down Current | 10 mA maximum |
| Internal Oscillator | Yes |
| Output Interface | Parallel |
| Output Format | Binary or two's complement |
| Interface Compatibility | DSP and microcontroller compatible |
| Power-Down Control | Hardware-configurable or software power-down |
| 封装 | 16-pin TSSOP |
TLV571CPW 16-pin tssop 引脚配置指南
TLV571CPW（16-pin tssop 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： TLV571CPW.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TLV571CPW 适用于 6 应用s: Industrial Sensor Acquisition, Battery-Powered Monitoring, DSP Front-End, Microcontroller-Based Control, Consumer Measurement Module, Embedded Diagnostic System.
Industrial Sensor Acquisition
The TLV571CPW fits a single-node industrial sensor front end when the measurement requires 8-bit resolution and a parallel host interface. Its 0 V to AVDD analog input range allows a conditioned sensor signal to be referenced to the converter supply, while the listed DNL and INL below plus or minus 0.5 LSB provide useful baseline linearity information. Place the ADC close to the sensor amplifier and route the parallel outputs to the controller or DSP. Because the converter has one analog channel, multiplexing is required when several sensors must be measured sequentially. Validate the source impedance, acquisition time, and input-settling behavior at the 1.25 MSPS maximum rate.
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Battery-Powered Monitoring
TLV571CPW is suitable for a battery-powered monitor that samples one analog quantity at intervals rather than continuously. The device operates from 2.7 V to 5.5 V and consumes 12 mW at 3 V according to the verified manufacturer search result, providing a concrete baseline for battery budgeting. Automatic power-down is listed at a maximum of 1 mA, while software power-down is listed at a maximum of 10 mA; the exact state transition and leakage behavior should be confirmed in the datasheet. Use the internal oscillator and parallel output only if the host controller can tolerate the associated timing and bus overhead.
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DSP Front-End
The TLV571CPW can serve as a simple parallel-input front end for a DSP-based control or measurement system. Its 8-bit resolution is appropriate for coarse quantization, while the 1.25 MSPS maximum sampling rate provides headroom for many low-bandwidth signal chains. The manufacturer identifies the parallel interface as DSP compatible and supports binary or two's-complement output, allowing the host to choose the representation that best matches its processing code. Design the board with short, properly terminated digital routes and synchronize acquisition, conversion, and data capture timing. Confirm settling and propagation timing from the official datasheet before treating the maximum rate as a system-level guarantee.
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Microcontroller-Based Control
TLV571CPW is appropriate for a microcontroller system that needs a direct parallel ADC result for threshold decisions or control-loop updates. The 8-bit output provides 256 code levels, which can be useful for coarse control quantities while avoiding the additional resolution and interface demands of a higher-bit converter. Use binary or two's-complement coding according to the firmware design, and make sure the microcontroller has enough GPIO pins for the parallel data bus and control signals. Because the ADC has one channel, add an analog multiplexer or separate converter when simultaneous sensing is required. Firmware should also handle conversion-complete timing and power-down sequencing.
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Consumer Measurement Module
The TLV571CPW can be used in a compact consumer measurement module for simple analog monitoring, such as level, position, or threshold sensing. Its single-channel architecture keeps the analog front end straightforward, while the 2.7 V to 5.5 V supply range supports common embedded rails. The parallel output may be attractive when the module already uses a microcontroller with spare GPIO and when signal integrity is easier to manage than a high-speed serial link. The 8-bit resolution should be matched to the actual sensor performance and calibration requirement; it cannot improve the input signal-to-noise ratio. Provide filtering and stable reference bypassing at the converter pins, and validate temperature and supply behavior across the product's operating environment.
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Embedded Diagnostic System
TLV571CPW is usable in an embedded diagnostic system where one analog parameter must be digitized for status reporting or fault detection. The listed nonlinearity limits are below plus or minus 0.5 LSB, providing a useful initial indication of code linearity, although system accuracy also depends on the reference, amplifier, sensor, and calibration process. The device's low-power modes can help preserve energy between diagnostic events, while the internal oscillator can simplify acquisition sequencing when an external clock is unnecessary. Use the device only after confirming that its input range, timing, and output coding satisfy the diagnostic accuracy target. Avoid treating the ADC specification as a substitute for end-to-end analog calibration.
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推荐产品汇总
工程参考数据： TLV571CPW ——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 | TLV571CPW |
|---|---|---|
| Package | 16-pin TSSOP | 16-pin TSSOP - same reference package |
| Brand | Texas Instruments | Texas Instruments |
| Resolution | 8 bit | 8 bit |
| Sampling Rate | 1.25 MSPS | 1.25 MSPS |
| Supply Voltage Range | 2.7 V to 5.5 V | 2.7 V to 5.5 V |
| Analog Input Range | 0 V to AVDD | 0 V to AVDD |
| DNL | < ±0.5 LSB | < ±0.5 LSB |
| INL | < ±0.5 LSB | < ±0.5 LSB |
| Output Interface | Parallel binary or two's complement | Parallel binary or two's complement |
| Power at 3 V | 12 mW | 12 mW |
| Power at 5 V | 35 mW | 35 mW |
| Automatic Power-Down Current | 1 mA maximum | 1 mA maximum |
| Software Power-Down Current | 10 mA maximum | 10 mA maximum |
关键差异点
- Single-channel 8-bit parallel ADC with a 1.25 MSPS maximum rate （对比 Higher-resolution serial ADCs)
- Single-supply operation from 2.7 V to 5.5 V （对比 ADCs requiring a wider supply range)
- Listed nonlinearity below plus or minus 0.5 LSB （对比 General-purpose converters without published linearity)
- Power-down options for intermittent acquisition （对比 Continuously powered converters)
设计说明
Budget the ADC rail from the verified values of 12 mW at 3 V and 35 mW at 5 V, then add regulator losses and peripheral load. If the system uses automatic or software power-down, confirm the control polarity and settling behavior in the TLV571 datasheet before relying on the listed 1 mA maximum automatic or 10 mA maximum software power-down figures. Estimated: at 3 V and 12 mW, the converter current equivalent is 4 mA; this is an arithmetic estimate, not a manufacturer specification.
Keep the analog input trace short, preserve a quiet return path, and place input filtering or conditioning components close to the ADC pins. The verified operating input range is 0 V to AVDD, so the source network must not drive the input beyond that range during normal operation or fault conditions. Because the TLV571CPW uses a parallel interface, route data and control lines with controlled length and return paths, then verify timing at the host device rather than assuming package placement alone guarantees margin.
Do not substitute an ADC based only on resolution or approximate sampling rate. A true drop-in replacement must also match the 16-pin TSSOP footprint, pin functions, supply range, 0 V to AVDD input range, parallel output coding, timing, and power behavior. The supplied cross-reference search did not produce a verified alternative MPN, so any substitution requires comparison against the official TLV571 datasheet and the candidate manufacturer's pin table.
合规信息
The supplied verified results identify the Texas Instruments product page and datasheet but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. These fields remain unknown.