AD7247ABRZ-REEL - Dual 12-Bit DAC | Analog Devices
部品番号: AD7247ABRZ-REEL ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $18.8011 | $18.80 |
| 10 | $18.8011 | $188.01 |
| 100 | $18.8011 | $1,880.11 |
| 500 | $18.8011 | $9,400.55 |
| 1,000 | $18.8011 | $18,801.10 |
AD7247ABRZ-REEL 概要
A DAC, or digital-to-analog converter, is an integrated circuit that converts a digital code into a proportional analog voltage or current. The AD7247A is part of the DACPORT family and uses a dual R-2R architecture with precision CMOS circuitry. In a system hierarchy, a DAC sits between digital control logic and analog output circuitry, while the AD7247ABRZ-REEL provides a compact dual-channel conversion function for instrumentation, industrial control, and test equipment.
Key features include two independent 12-bit DAC channels, a 125 kS/s sampling rate, an 8 microsecond settling time, and support for single- and dual-supply operation. According to the manufacturer product information, single-supply output ranges include 0 V to 5 V and 0 V to 10 V; dual supplies add an additional plus or minus 5 V range. The SOIC-24 package supports surface-mount assembly and is supplied in tape-and-reel packaging for automated manufacturing.
The AD7247A family is fabricated using Analog Devices Linear Compatible CMOS, or LC2MOS, technology. LC2MOS combines precision bipolar circuit techniques with low-power CMOS logic, helping support accurate digital-to-analog conversion in a single integrated device. The AD7247ABRZ-REEL is identified in distributor listings as a 24-pin, 12-bit, dual DAC and is categorized as a SOIC industrial-grade component with an operating temperature range of -40 °C to +85 °C.
Typical uses include programmable voltage sources, industrial process-control outputs, laboratory instrumentation, data-acquisition systems, and precision analog signal generation. Because the converter has two channels, it can drive paired analog outputs from a shared digital control system. The external-reference option allows designers to improve stability or scale the output range when the application requires independent reference control.
Designers should verify the supply rails, reference configuration, output range, settling requirements, and digital-interface timing against the AD7247A datasheet. Decoupling capacitors should be placed close to the supply pins, and the analog output routing should be kept separate from fast digital switching paths. The manufacturer documentation also confirms that the family is available in 24-pin plastic and hermetic DIP packages and 24-lead SOIC packages.
This page combines verified manufacturer and distributor information with package-specific comparison, selection guidance, and practical design notes. It is intended to help engineers identify whether the AD7247ABRZ-REEL matches the required resolution, channel count, supply arrangement, package, and precision application.
ドロップイン代替品: AD7247ABRZ-REEL — 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。
クイック比較ツール — 並列比較する代替部品を選択:
AD7247AARZ-REEL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD7247AARZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD7247AARZ-REEL7
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD7247JRZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD7247AANZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD7247ABRZ-REEL 最大定格＆電気的特性
| Product Type | Dual 12-bit digital-to-analog converter |
| Number of DAC Channels | 2 channels |
| 分解能 | 12 bit |
| サンプリングレート | 125 kS/s |
| Settling Time | 8 us |
| Supply Voltage Range | 12 V to 15 V |
| Internal Reference | 5 V on-chip reference |
| External Reference | Supported through REF OUT/REF IN |
| Single-Supply Output Range | 0 V to +5 V or 0 V to +10 V |
| Dual-Supply Output Range | Additional ±5 V range |
| Output Amplifier | On-chip output amplifiers |
| Reference Buffer | On-chip reference-buffer amplifiers |
| インターフェース | Parallel digital interface |
| Process Technology | LC2MOS Linear Compatible CMOS |
| パッケージ | 24-lead SOIC |
| ピン数 | 24 pins |
| 動作温度 | -40 °C to +85 °C |
| Screening Level | Industrial |
| 実装タイプ | Surface mount |
| RoHS ステータス | Compliant |
AD7247ABRZ-REEL ピン構成
| ピン 1 | DB0 — Digital input bit 0 |
| ピン 2 | DB1 — Digital input bit 1 |
| ピン 3 | DB2 — Digital input bit 2 |
| ピン 4 | DB3 — Digital input bit 3 |
| ピン 5 | DB4 — Digital input bit 4 |
| ピン 6 | DB5 — Digital input bit 5 |
| ピン 7 | DB6 — Digital input bit 6 |
| ピン 8 | DB7 — Digital input bit 7 |
| ピン 9 | DB8 — Digital input bit 8 |
| ピン 10 | DB9 — Digital input bit 9 |
| ピン 11 | DB10 — Digital input bit 10 |
| ピン 12 | DB11 — Digital input bit 11 |
| ピン 13 | DB12 — Digital input bit 12 |
| ピン 14 | DB13 — Digital input bit 13 |
| ピン 15 | DB14 — Digital input bit 14 |
| ピン 16 | DB15 — Digital input bit 15 |
| ピン 17 | REF OUT/REF IN — Internal reference output or external reference input |
| ピン 18 | VOUTA — Analog output for DAC channel A |
| ピン 19 | VOUTB — Analog output for DAC channel B |
| ピン 20 | AGND — Analog ground |
| ピン 21 | V+ — Positive supply input |
| ピン 22 | V- — Negative supply input |
| ピン 23 | DGND — Digital ground |
| ピン 24 | NC — No connect or function depends on the specific AD7247A package pinout; verify against the manufacturer datasheet |
主な用途
AD7247ABRZ-REEL の用途: 6 件s: Precision Programmable Voltage Sources, Industrial Process Control, Laboratory Instrumentation, Data-Acquisition Systems, Automated Test Equipment, Industrial Communication and Control Boards.
Precision Programmable Voltage Sources
AD7247ABRZ-REEL fits precision programmable voltage sources because it combines two 12-bit DAC channels with a 125 kS/s sampling rate and an 8 microsecond settling time. Each channel can generate a controlled analog level for test equipment, calibration fixtures, or laboratory instruments. The selectable on-chip 5 V reference or external reference helps designers choose between a self-contained solution and a calibration-friendly reference architecture. Designers should verify settling time against the required update rate and confirm output loading at the selected range.
おすすめ
Industrial Process Control
AD7247ABRZ-REEL is suitable for industrial process-control systems requiring two independently commanded analog outputs. Its 12-bit resolution and 125 kS/s sampling rate provide a practical control interface for actuator commands or test signals, while the listed -40 °C to +85 °C operating range supports industrial environments. The dual output arrangement simplifies multi-loop or dual-axis control compared with using two separate converters. Engineers must still check isolation, grounding, output range, and protection requirements at the system level.
おすすめ
Laboratory Instrumentation
AD7247ABRZ-REEL can generate two controlled analog outputs for laboratory instrumentation, calibration systems, and automated test equipment. Its 8 microsecond settling time is useful when the instrument needs fast updates after a digital code change, while the 12-bit resolution supports applications that do not require higher-resolution conversion. The REF OUT/REF IN function permits an external reference for calibration or precision scaling. The instrument designer should verify output noise, monotonicity, settling accuracy, and reference drift against the measurement specification.
おすすめ
Data-Acquisition Systems
AD7247ABRZ-REEL fits data-acquisition and signal-generation subsystems that need a compact two-channel DAC. The 24-lead SOIC package provides a manageable surface-mount footprint, and the 125 kS/s sampling rate supports control and excitation signals in many measurement systems. Its parallel interface makes it suitable for systems with dedicated digital control logic. When using it in a data-acquisition chassis, engineers should isolate analog output paths from digital clocks, maintain short ground returns, and verify the intended output range against downstream circuitry.
おすすめ
Automated Test Equipment
AD7247ABRZ-REEL is useful in automated test equipment for generating stimulus levels or control voltages on two channels. The 12-bit DAC resolution, 125 kS/s sampling rate, and 8 microsecond settling time support moderate-speed test sequences, while tape-and-reel packaging supports automated assembly. The external-reference capability can help a test system use a shared precision reference or calibration reference. Before deployment, verify output accuracy over temperature, channel-to-channel matching, and the settling behavior required by the test limits.
おすすめ
Industrial Communication and Control Boards
AD7247ABRZ-REEL can be used in industrial communication and control boards that translate digital commands into analog process signals. Its dual-channel architecture allows one converter to serve two related control or monitoring functions, reducing board-level component count compared with two single-channel DACs. The listed industrial screening level and -40 °C to +85 °C range make it a reasonable candidate for equipment operating beyond consumer-temperature environments. Designers should still account for supply regulation, analog-ground design, output protection, and any hazardous-area requirements.
おすすめ
エンジニアリング参考データ: AD7247ABRZ-REEL — 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 | AD7247AARZ-REEL | AD7247AARZ | AD7247AARZ-REEL7 | AD7247JRZ | AD7247AANZ |
|---|---|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | 24-lead SOIC | 24-pin SOIC | 24-pin SOIC | 24-pin SOIC | 24-pin SOIC | 24-pin SOIC |
主な差別化要因
- Dual 12-bit DAC channels in one 24-lead SOIC （vs AD7247AANZ)
- Reference flexibility （vs AD7247JRZ)
- Verified output speed class （vs AD7247AARZ-REEL)
- Supplier and package availability （vs AD7247AARZ)
設計ノート
Place the required supply-decoupling capacitors close to the AD7247ABRZ-REEL supply pins and follow the manufacturer datasheet for capacitance, voltage rating, and layout. Because the converter supports 12 V to 15 V operation, verify that the supply rails remain within the specified range during startup and load transients. Keep analog and digital supply routing controlled so switching noise does not degrade the reference and analog outputs.
Route the parallel digital interface away from sensitive analog output and reference nets, and use a compact, deliberate ground strategy for AGND and DGND. The 24-lead SOIC package is surface mount, so solder-paste and assembly symmetry should be checked against the package drawing. Confirm the final pin assignments against the official AD7247A datasheet before fabrication; the verified snippets do not provide every pin name.
The AD7247ABRZ-REEL has an 8 us settling time and a 125 kS/s sampling rate, so digital code transitions and output settling should be coordinated with the receiving circuit. Keep output traces short, appropriately terminated for the load, and separated from clocks and high-current switching paths. If an external reference is used, place it and its decoupling network close to the reference pins and validate drift and startup behavior.
コンプライアンス情報
The verified comparison data reports RoHS compliance for AD7247ABRZ-REEL. No verified REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification data was provided.
