ADS1241E - 24-Bit 30-SPS 8-Channel ADC | Texas Instruments
部品番号: ADS1241E ✗ 生産終了ADS1241E 概要
A delta-sigma ADC is a type of analog-to-digital converter that uses oversampling and digital filtering to convert continuously varying analog voltages into high-resolution digital codes. Within the broader semiconductor hierarchy, the ADS1241E is an ADC, then a data-converter IC, then an integrated circuit used for precision signal acquisition. Its 24-bit resolution and 30-SPS conversion rate target applications that need accurate measurement without exceptionally high sample throughput.
The ADS1241E provides eight analog input channels, a programmable gain amplifier, and an SPI-compatible serial interface. The PGA supports conditioning of low-level sensor signals before conversion, while the 24-bit converter architecture is intended to preserve fine measurement detail. According to the Texas Instruments product page, up to eight bits of data I/O can also be supplied for input or output, expanding its usefulness for hardware control functions beyond primary data acquisition.
The 28-pin SSOP package suits compact industrial and instrumentation boards where analog input density matters more than the footprint of a high-lead-count package. The verified distributor listing identifies the ADC as a 24-bit, eight-input, single sigma-delta converter, while the manufacturer describes the family as a 24-bit, 30-SPS, eight-channel device with a PGA. The operating temperature range reported by the LCSC listing is -40°C to +85°C.
Typical implementation places the ADS1241E between sensors or conditioning networks and a digital controller. Suitable systems include smart transmitters, process-control instrumentation, precision weighing equipment, chromatography data acquisition, and portable measurement products. SPI-compatible communication allows the converter to connect to a microcontroller while keeping the analog front end isolated from the digital control section.
Designers should verify the complete electrical limits, pin functions, recommended application circuit, reference requirements, and digital-interface timing in the manufacturer datasheet before layout. Component placement, analog grounding, reference-voltage stability, and filtering directly affect a precision ADC, so the verified 24-bit resolution should not be treated as useful system accuracy without a complete error budget. This page distinguishes documented capabilities from parameters that still require detailed datasheet review.
ドロップイン代替品: ADS1241E — 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。
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストADS1241E 最大定格＆電気的特性
| ADC Type | Delta-sigma ADC |
| 分解能 | 24 bit |
| Conversion Rate | 30 samples per second |
| Number of Analog Input Channels | 8 channels |
| Programmable Gain Amplifier | Integrated PGA |
| Digital Interface | SPI-compatible |
| General-Purpose Data I/O | Up to 8 bits |
| パッケージ | 28-pin SSOP |
| 動作温度範囲 | -40°C to +85°C |
| 実装タイプ | Surface mount |
| RoHS ステータス | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
ADS1241E 28-pin ssop ピン配置ガイド
ADS1241E (28-pin ssop 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: ADS1241E.
詳細は データシート をご参照ください。
主な用途
ADS1241E の用途: 6 件s: Smart Transmitters, Industrial Process Control, Precision Weight Scales, Chromatography Data Acquisition, Portable Instrumentation, Sensor Measurement Interfaces.
Smart Transmitters
The ADS1241E fits smart-transmitter front ends that must convert low-level sensor signals into reliable 24-bit digital measurements. Its integrated programmable gain amplifier can condition the analog input before conversion, while the eight-channel architecture supports multiple measurements without requiring eight separate converter packages. The SPI-compatible interface allows the converter to share digital wiring with a controller, and the 30-SPS rate is appropriate for continuously monitored process variables rather than high-speed waveform capture. Designers should select the gain, digital-filter mode, and reference strategy with the complete analog error budget, then validate the final calibration against the required transmitter accuracy.
おすすめ
Industrial Process Control
Industrial process-control systems can use the ADS1241E where slow but accurate process-variable measurements are more important than high sampling rates. Its 24-bit resolution supports detailed conversion of sensor outputs, and the programmable gain amplifier helps match low-level inputs to the converter's usable range. Eight analog input channels reduce the number of discrete acquisition devices when the system monitors several related variables. The 30-SPS conversion capability fits supervisory pressure, temperature, flow, and level channels, while SPI-compatible communication provides a straightforward path to a digital controller. Calibration drift, reference stability, grounding, and input filtering must be evaluated to ensure that system-level accuracy reflects the converter's 24-bit capability.
おすすめ
Precision Weight Scales
The ADS1241E is applicable to precision weighing systems that digitize low-level load-cell or strain-gauge bridge signals. The integrated programmable gain amplifier is central to conditioning the small differential measurement while the 24-bit delta-sigma converter provides detailed digital output. The 30-SPS rate is suitable for weighing systems that update a displayed mass value rather than capture rapid impact waveforms. Eight analog inputs can also support reference, temperature, or auxiliary measurements in a multi-channel instrument. Engineers should account for bridge excitation, lead and contact resistance, common-mode range, filtering, offset, and gain calibration so the complete scale does not depend on nominal converter resolution alone.
おすすめ
Chromatography Data Acquisition
Chromatography acquisition systems can use the ADS1241E to digitize multiple low-level detector outputs with a consistent 24-bit conversion format. Its eight analog channels reduce conversion-channel count when several detectors or auxiliary signals must be monitored, and the programmable gain amplifier allows sensitive analog signals to be scaled before digitization. The 30-SPS data rate is suitable for many chromatography peaks whose relevant signal bandwidth is modest, provided the selected digital filter and settling behavior meet the chromatogram timing requirements. Practical implementation should isolate analog routing from SPI activity, stabilize the reference, apply appropriate input filtering, and verify acquisition latency and channel multiplexing in the manufacturer data sheet.
おすすめ
Portable Instrumentation
The ADS1241E supports portable measurement instruments that must combine several precision analog inputs with a compact digital architecture. Its 28-pin SSOP package limits board area, while the integrated programmable gain amplifier reduces the need for separate analog-conditioning stages for low-level signals. The eight-channel converter can consolidate current, voltage, temperature, and reference measurements, and the SPI-compatible interface permits connection to a low-power embedded controller. A 30-SPS rate is well matched to handheld instruments displaying slowly changing physical quantities. Battery-powered designs still require examination of supply current, reference behavior, standby modes, and startup calibration using data not present in the supplied verified results.
おすすめ
Sensor Measurement Interfaces
The ADS1241E can serve as the central conversion element in a multi-sensor measurement interface. Its programmable gain amplifier conditions sensor outputs before conversion, and its eight input channels allow the instrument to monitor several transducers without implementing eight independent converters. The 24-bit result format is useful when small changes in sensor output must remain distinguishable after digital processing. At 30 SPS, the converter prioritizes precision and usable noise performance over rapid sampling, making it appropriate for temperature, pressure, level, and resistance measurements. The final interface should establish a defined reference, common-mode limits, input protection, calibration coefficients, and filtering appropriate to each transducer.
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: ADS1241E — 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 |
|---|---|
| ADC Architecture | Delta-sigma ADC |
| Resolution | 24 bit |
| Conversion Rate | 30 samples per second |
| Analog Input Channels | 8 channels |
| Programmable Gain Amplifier | Integrated PGA |
| Digital Interface | SPI-compatible |
| Package | 28-pin SSOP |
| Brand | Texas Instruments |
| Operating Temperature Range | -40°C to +85°C |
| General-Purpose Data I/O | Up to 8 bits |
設計ノート
Keep the ADS1241E analog inputs, reference connections, and ground-return paths compact and physically separated from SPI clock and data routing. The supplied results confirm eight analog inputs, an integrated PGA, and a 24-bit conversion resolution, but they do not provide the recommended-layout drawing. Before fabrication, reproduce the manufacturer reference layout, preserve the specified analog and digital ground strategy, and place input filtering and protection components directly at the relevant pins.
Treat the reference and analog-supply networks as precision signal paths rather than ordinary utility rails. The verified material does not state the reference voltage, output impedance, supply range, or current consumption, so those values must be obtained from the manufacturer data sheet before capacitors, load, or power budgeting are selected. Validate startup, reference settling, and the conversion sequence over the required input range rather than assuming the 24-bit code width alone determines usable accuracy.
Do not assume that ADS1240, ADS1248, or another related TI ADC is a drop-in replacement for ADS1241E. The verified TI forum result specifically describes common-mode restrictions for ADS1248, demonstrating that related-family parts can impose materially different input conditions. Verify every pin, supply level, gain setting, reference configuration, digital timing requirement, and package before approving any substitution; otherwise, redesign or qualify the replacement rather than treating the shared ADC category as sufficient evidence.
コンプライアンス情報
The supplied verified results do not explicitly state the compliance status of ADS1241E. Compliance claims should be confirmed against the current Texas Instruments product page or the relevant manufacturer declaration.