TLV0834CD - 8-Bit 41kSPS 4-Channel ADC | Texas Instruments
部品番号: TLV0834CD ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TLV0834CD 概要
An ADC converts an analog voltage into a digital code for measurement, control, sensing, or display systems. A successive-approximation ADC is a sampling ADC category that compares the unknown input with a generated reference through successive decision steps. The TLV0834 belongs to the broader data-acquisition and mixed-signal semiconductor hierarchy. Its low 8-bit resolution and 41 kSPS rate suit compact systems that monitor slowly changing sensor signals rather than high-bandwidth waveform acquisition.
The TLV0834CD supports an input range from ground to VCC when the VCC reference is used. Its serial interface can communicate with standard shift registers or microprocessors, and the verified product information explicitly identifies TTL/MOS-compatible input and output levels. This makes the converter useful in embedded designs that need only eight bits of measurement resolution but require inexpensive external control rather than a parallel data bus.
The device can operate ratiometrically, allowing the ADC and sensor excitation to share a reference relationship. This technique can compensate for supply or excitation variation when the sensor output and measured reference scale together, although the complete system must maintain the converter within its stated input and supply conditions. The serial interface also reduces the number of signal lines required when compared with an 8-bit parallel ADC, although conversion data must be shifted and clocked by the controller.
Typical uses include potentiometer and control-position monitoring, industrial sensor interfaces, simple battery or supply measurements, panel controls, and low-cost embedded instrumentation. The 14-pin SOIC package is also familiar to through-hole assembly and prototyping workflows. Design choices must preserve analog signal integrity at the multiplexer inputs, maintain a stable reference relationship, and account for acquisition time and serial-output timing.
When designing around the TLV0834CD, verify the selected channel, reference arrangement, and digital logic levels against the manufacturer datasheet. Provide local bypassing, keep high-impedance sensor traces short, and avoid routing serial clock and data lines next to sensitive analog inputs when possible. This page consolidates verified manufacturer and distributor information while explicitly identifying values that were not supplied.
ドロップイン代替品: TLV0834CD — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: TLV0834CD （同一形状・フットプリント） — 相違点: Package, Supply Voltage.
クイック比較ツール — 並列比較する代替部品を選択:
TLV0834ID
✅ ドロップイン✓ 在庫あり
$0.85 / 個
データシートを見る →TLV0834IDRG4
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TLV0834CD 最大定格＆電気的特性
| ADC Resolution | 8 bit |
| サンプリングレート | 41 kSPS |
| Input Channel Options | 2, 3, or 4 inputs |
| Input Type | Differential, pseudo-differential, or single-ended |
| Conversion Architecture | Successive-approximation ADC |
| Reference Method | Ratiometric operation or VCC reference |
| Input Range | 0 V to VCC with VCC reference |
| Logic Compatibility | TTL/MOS input and output compatible |
| Data Interface | Serial input/output |
| Multiplexer | Input-configurable, 4-channel family option |
| 電源電圧 | 3 V nominal |
| パッケージ | 14-pin SOIC |
| 実装タイプ | Surface mount |
| Product Status | Active |
| Supplier Packaging | Tube |
TLV0834CD 14-pin soic ピン配置ガイド
TLV0834CD (14-pin soic パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: TLV0834CD.
詳細は データシート をご参照ください。
主な用途
TLV0834CD の用途: 6 件s: Industrial Sensor Interface, Battery Voltage Monitoring, Control Panel and Human Interface, Potentiometer Position Sensing, Low-Cost Embedded Instrumentation, Remote Sensor Node.
Industrial Sensor Interface
TLV0834CD fits industrial sensor-interface boards that monitor several slowly changing analog signals and require only eight bits of measurement resolution. Its verified 41 kSPS successive-approximation conversion rate is substantially above the update needs of many temperature, level, pressure, and position sensors, while the four-channel multiplexer reduces the number of separate converters required. Connect conditioned sensor voltages within the verified 0 V to VCC range, and use a stable reference arrangement. Ratiometric operation may help when sensor excitation and conversion reference share a source, but the engineer must verify the exact reference and input limits in the manufacturer datasheet.
おすすめ
Battery Voltage Monitoring
TLV0834CD can supervise a divided battery or supply voltage when eight-bit resolution is adequate for threshold decisions, battery-state indication, or energy-budget control. The verified 0 V to VCC input range under VCC-reference operation makes external scaling important when the source exceeds the ADC supply. Use a resistor divider and verify divider tolerances, input impedance, acquisition behavior, and maximum pin voltage. Ratiometric operation can be useful when the measurement and reference share a supply, but the application still needs an accurate reference and defined sampling interval for reliable state estimation.
おすすめ
Control Panel and Human Interface
TLV0834CD is appropriate for reading potentiometers, selector switches, analog controls, and simple panel sensors in cost-sensitive embedded interfaces. The verified four-channel capability allows a controller to scan several controls serially, while the 41 kSPS rate allows rapid refresh relative to human interaction. A microcontroller can drive the serial interface and debounce or process the resulting codes. Design the analog traces to avoid noise pickup, provide suitable conditioning for variable contacts, and confirm the device’s logic levels against the controller supply. The 14-pin SOIC package also fits established through-hole PCB layouts.
おすすめ
Potentiometer Position Sensing
おすすめ
Low-Cost Embedded Instrumentation
TLV0834CD can serve as the measurement front end in compact laboratory, service, or educational instruments where an eight-bit reading is sufficient. The verified serial interface supports connection to a microcontroller or standard shift-register logic, reducing the pin count and wiring required compared with a parallel ADC. For instrument accuracy, calibrate offset and gain in firmware, provide stable excitation, and distinguish ratiometric readings from absolute references. The device is best suited to slowly varying signals; waveform or precision applications may require a converter with higher bandwidth, resolution, or accuracy.
おすすめ
Remote Sensor Node
TLV0834CD fits remote sensor nodes that periodically sample analog measurements and transmit summarized values over another communications link. The verified 41 kSPS converter rate is substantially faster than common temperature, humidity, pressure, and simple level sensing loops, allowing duty-cycled operation between samples. A low-power microcontroller can control channel selection, wake the converter, read serial data, and record results. The design should check supply limits, logic compatibility, reference stability, and acquisition timing; it should also protect external sensor wiring from transients before signals reach the ADC inputs.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TLV0834CD — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TLV0834ID | TLV0834IDRG4 |
|---|---|---|---|
| Package | 14-pin SOIC | 14-pin SOIC | 14-pin SOIC |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| ADC Resolution | 8 bit | 8 bit | 8 bit |
| Drop-In Verification | Reference design | Related family candidate; full pin and electrical verification required | Related family candidate; comparison states some electrical characteristics differ |
主な差別化要因
- Verified four-channel configuration with serial control （vs TLV0834IDRG4)
- Active manufacturer ordering variant （vs TLV0834ID)
- TTL/MOS-compatible serial interface （vs TLV0834IDRG4)
設計ノート
Keep analog input traces short, route them away from serial clock and data lines, and provide local supply bypassing close to the SOIC power pins. High-impedance sensor nodes are particularly susceptible to leakage and coupling, so use guarding or shielding where necessary. The verified data establishes a 0 V to VCC input range under VCC-reference operation, but it does not provide complete acquisition-time or capacitance limits; obtain those values from the manufacturer datasheet before setting the sampling cadence.
Confirm the exact supply range and logic thresholds in the official TLV0834 datasheet before connecting a microcontroller or external shift register. The verified information identifies a 3 V family and TTL/MOS-compatible interfaces, but it does not establish every voltage limit or input threshold. Use a stable reference arrangement, minimize digital supply noise, and validate that analog input conditioning never drives a pin outside the datasheet limits.
Preserve the 14-pin SOIC footprint and verify the exact pin numbering against the manufacturer datasheet before layout release. Place the bypass capacitor near the supply pins and keep the analog input network away from switching nodes and serial traces. For through-hole assembly, the SOIC package is surface mount, so a suitable footprint and assembly process are required; do not infer a pinout from the distributor package name alone.
Do not assume that every TLV0834 suffix is electrically identical. The supplied comparison material states that TLV0834IDRG4 has differing electrical characteristics from TLV0834CD, so a family label is not proof of drop-in compatibility. Check temperature grade, reference behavior, serial timing, channel configuration, absolute maximum ratings, and lifecycle status before substituting a part. Firmware should also be tested against the exact replacement datasheet.
コンプライアンス情報
The supplied verified results do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-mineral status. These fields remain unknown rather than being inferred.
