TLV0831ID - 8-Bit 49 kSPS Serial ADC | Texas Instruments
料号： TLV0831ID ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.3838 | $1.38 |
| 10 | $1.3838 | $13.84 |
| 100 | $1.3838 | $138.38 |
| 500 | $1.3838 | $691.90 |
| 1,000 | $1.3838 | $1,383.80 |
TLV0831ID 概述
An analog-to-digital converter is an interface IC that converts a continuously varying analog voltage into a numeric value for processing by a microcontroller, digital controller, or programmable logic. The TLV0831 belongs to the ADC/DAC category and uses a successive-approximation conversion architecture, repeatedly comparing the unknown input with a generated reference voltage until the residual falls within the converter's resolution.
The device provides 8-bit resolution, one analog input channel, and a serial output that can operate independently or connect to a microprocessor. Its input accepts either a differential signal or a configurable single-ended signal. The verified product information also identifies ratiometric operation, operation with VCC as the reference, and an input range from 0 V to VCC, making the converter suitable for sensor signals scaled to the supply range.
With a maximum conversion rate of 49 kSPS, the TLV0831 balances throughput and power in low-speed data acquisition. Serial communication reduces the number of signal lines required, while the SOIC-8 package supports conventional surface-mount assembly. The three-volt operating class is appropriate for battery-powered instruments, portable monitoring equipment, and embedded industrial control systems operating from a regulated 3.3 V rail.
Typical uses include temperature-sensor monitoring, industrial transducer acquisition, low-rate process measurement, portable diagnostic equipment, and embedded control panels. A microcontroller can issue a conversion command, receive the serialized result, and scale the code using either VCC or an external reference arrangement. Ratiometric excitation can also reduce errors when the sensor and converter share the same supply.
Designers should verify the exact pin connections, timing, input limits, reference behavior, and acquisition requirements against the manufacturer datasheet before layout. The input signal must remain within the specified input range, and software must account for conversion latency and the encoding of differential or single-ended results.
This page consolidates verified manufacturer and distributor information, package details, commercial availability, application guidance, and same-brand drop-in alternatives. It also identifies specifications that require confirmation from the datasheet rather than inferring values that were not supplied.
直接替换替代料： TLV0831ID ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TLV0831ID （相同外形与封装尺寸） ——差异在于 Analog Input Type, Converter Architecture.
快速对比工具——选择替代料号进行并排对比：
TLV0831CDR
✅ 直接替换📋 参考替代料（不在目录中）
TLV0831CDG4
✅ 直接替换📋 参考替代料（不在目录中）
TLV0831IDR
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV0831IDG4
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV0831IP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TLV0831ID 最大额定值与电气特性
| 分辨率 | 8 bit |
| Conversion Rate | 49 kSPS |
| Converter Architecture | Successive-approximation (SAR) |
| Input Channels | 1 channel |
| Analog Input Type | Differential, configurable as single-ended |
| 输出类型 | Serial |
| Supply Voltage Range | 2.7 V to 3.6 V |
| 输入电压范围 | 0 V to VCC |
| Reference Options | Ratiometric operation or VCC reference |
| Microprocessor Interface | Easy microprocessor interface or standalone operation |
| 封装 | 8-pin SOIC (D) |
| 安装类型 | Surface mount |
| RoHS 状态 | unknown |
| REACH Status | unknown |
TLV0831ID 8-pin soic (d) 引脚配置指南
TLV0831ID（8-pin soic (d) 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： TLV0831ID.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TLV0831ID 适用于 6 应用s: Industrial Sensor Signal Acquisition, Portable Temperature Monitoring, Process Control Measurement, Battery-Powered Diagnostic Instrument, Embedded Control Panel, Laboratory Low-Speed Data Acquisition.
Industrial Sensor Signal Acquisition
The TLV0831ID suits industrial sensor interfaces that require one analog channel, 8-bit resolution, and a compact serial data path. Its 49 kSPS SAR conversion rate is more than adequate for many temperature, pressure, and position sensors, while the 2.7 V to 3.6 V operating range supports a regulated 3.3 V control rail. Differential input capability can help reject common-mode noise in balanced sensor installations, or the input can be configured as single-ended for a simpler source. The principal design check is signal range: the verified input specification is 0 V to VCC, so sensor excitation and conditioning must keep the pin within its documented limits. Ratiometric operation can also reduce supply-scaling error when the sensor excitation and ADC reference share the same supply. Firmware should initiate each conversion, read the serial result, and apply calibration based on the exact reference arrangement.
推荐
Portable Temperature Monitoring
The TLV0831ID is well suited to portable temperature-monitoring equipment where an 8-bit result is adequate for displaying or controlling temperature rather than laboratory-grade analysis. A 49 kSPS conversion rate provides ample responsiveness for slow thermal changes, and the serial output reduces the number of interconnects between the converter and a low-power controller. Its three-volt supply class allows operation from a regulated rail derived from a compact battery system. Ratiometric excitation can be useful when the sensing element and the ADC share a supply, but the system must comply with the manufacturer's input and reference limits. A practical design should buffer the sensor if its output impedance is high, provide local reference or supply decoupling as directed by the datasheet, and apply offset, gain, and temperature calibration in firmware.
推荐
Process Control Measurement
The TLV0831ID can serve as the low-speed measurement front end in a process-control system when the controlled variable changes gradually and 8-bit resolution is sufficient. The single-channel SAR architecture converts an analog process signal into a serial digital code that a controller can use in feedback calculations. With a 49 kSPS maximum rate, the converter is appropriate for supervisory loops rather than high-bandwidth waveform analysis. Differential input can improve rejection of coupled noise in industrial wiring, while single-ended operation simplifies interfaces to resistive dividers. The verified 0 V to VCC input range means the process signal must be scaled and protected before entering the converter. Engineers should also account for serial conversion latency, input settling time, and the timing of control updates. Calibration against known process points is advisable to reduce offset and gain errors.
推荐
Battery-Powered Diagnostic Instrument
The TLV0831ID fits compact diagnostic instruments that sample one analog measurement and communicate its result through a serial interface. Its 2.7 V to 3.6 V supply operation supports energy-efficient three-volt system architectures, while the serial output reduces connector pins and PCB routing compared with an 8-bit parallel ADC. The 49 kSPS conversion rate is suitable for many handheld probes and recurring diagnostic checks. A ratiometric measurement arrangement can compensate for supply changes when both the stimulus and converter share the same reference, although the input must still remain inside the 0 V to VCC range. For a successful handheld design, confirm standby and active current from the manufacturer datasheet, use the recommended bypass capacitors, and ensure the serial interface timing remains compatible with the selected controller. Gain and offset calibration should be stored with the instrument configuration.
推荐
Embedded Control Panel
The TLV0831ID provides an economical analog input channel for embedded control panels that monitor a knob, divider, or slow analog feedback signal. The 8-bit resolution can represent 256 discrete levels, which is generally adequate for position indication, coarse adjustment, or status thresholds. Its 49 kSPS rate avoids imposing a long delay in operator feedback, and the 8-pin SOIC package simplifies assembly in mixed-signal control hardware. Differential input offers flexibility for shielded or balanced sensing arrangements, while the configurable single-ended mode supports conventional ground-referenced networks. The converter operates from 2.7 V to 3.6 V, so it can share a regulated 3.3 V rail with compatible digital circuitry. Firmware should translate the raw code according to the programmed input configuration and reference method. If the panel must measure multiple independent analog controls simultaneously, a multiplexed ADC family member may reduce connector count.
推荐
Laboratory Low-Speed Data Acquisition
The TLV0831ID is appropriate for a low-speed laboratory acquisition channel when 8-bit resolution and 49 kSPS are sufficient for the experiment. It can convert a buffered sensor or attenuator output and transfer the result through its serial interface to a controller or logging system. The single-channel architecture keeps the circuit straightforward for one isolated measurement point, and differential input may improve rejection of common-mode interference in bench wiring. Because the verified input range is 0 V to VCC, signals must be biased and scaled appropriately rather than connected beyond that range. Designers should check the manufacturer datasheet for input bandwidth, acquisition time, settling requirements, and serial timing before selecting it for dynamic measurements. For waveforms requiring greater resolution, bandwidth, or simultaneous sampling, a more capable converter would be preferable. For slow logging, the 8-bit result should be paired with calibration and sufficient averaging or filtering to improve effective precision.
推荐
推荐产品汇总
工程参考数据： TLV0831ID ——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 | TLV0831CDR | TLV0831CDG4 | TLV0831IDR | TLV0831IDG4 | TLV0831IP |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 8-pin SOIC (D) | 8-pin SOIC - same | 8-pin SOIC - same | 8-pin SOIC - same | 8-pin SOIC - same | 8-pin SOIC - same |
| Resolution | 8 bit | 8 bit | 8 bit | 8 bit | 8 bit | 8 bit |
| Conversion Rate | 49 kSPS | 49 kSPS | 49 kSPS | 49 kSPS | 49 kSPS | 49 kSPS |
| Architecture | Successive-approximation (SAR) | Successive-approximation (SAR) | Successive-approximation (SAR) | Successive-approximation (SAR) | Successive-approximation (SAR) | Successive-approximation (SAR) |
| Input Channels | 1 channel | 1 channel | 1 channel | 1 channel | 1 channel | 1 channel |
| Input Configuration | Differential, configurable as single-ended | Differential, configurable as single-ended | Differential, configurable as single-ended | Differential, configurable as single-ended | Differential, configurable as single-ended | Differential, configurable as single-ended |
| Output Interface | Serial | Serial | Serial | Serial | Serial | Serial |
关键差异点
- Single-channel converter provides a higher listed sample rate than the dual-channel family member （对比 TLV0832CDR)
- Direct same-family alternatives preserve the 8-bit SAR architecture （对比 TLV0831CDR)
- Configurable input supports balanced sensing or simpler single-ended interfaces （对比 TLV0831CDG4)
设计说明
The TLV0831ID operates from 2.7 V to 3.6 V, so use a stable rail within that range and follow the manufacturer datasheet's decoupling recommendations. Keep the analog supply and ground paths clean because conversion accuracy can be affected by supply ripple and reference noise. When using VCC as the reference, treat the ADC code as ratiometric rather than as an absolute voltage measurement. Estimated: at a 3.3 V supply, one 8-bit code spans approximately 3.3 V divided by 256, or 12.9 mV per code; actual accuracy also depends on offset, gain, noise, and reference stability.
Route the analog input away from serial clock and switching-node traces, and return analog ground through a quiet path. For differential operation, balance the signal routing and keep both input traces over a continuous reference plane where practical. The verified input range is 0 V to VCC, so any bipolar or larger-than-rail signal must be attenuated, biased, or buffered before reaching the pin. Check source impedance against the manufacturer's acquisition requirements and add an RC filter only after accounting for the allowable settling time at the selected 49 kSPS conversion rate.
Do not substitute a multiplexed dual-channel TLV0832 device merely because it also uses an 8-pin SOIC: the verified comparison lists 44.7 kSPS for TLV0832 versus 49 kSPS for TLV0831, and the channel architecture differs. Likewise, verify the suffix-specific temperature grade and ordering configuration of every alternative. The supplied results confirm that TLV0831CDR and TLV0831CDG4 have consistent terminals and package characteristics, but final substitution should be checked against the manufacturer's ordering information and the exact design limits.
合规信息
The supplied verified results do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status for TLV0831ID. These fields remain unknown pending a manufacturer declaration for the exact orderable part.