AD667SD/883B - 12-Bit DAC, 28-CDIP | Analog Devices
部品番号: AD667SD/883B ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $45.32 | $45.32 |
| 10 | $41.87 | $418.70 |
| 100 | $38.45 | $3,845.00 |
| 500 | $35.02 | $17,510.00 |
| 1,000 | $31.6 | $31,600.00 |
AD667SD/883B 概要
A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. The AD667SD/883B is a voltage-output DAC, meaning it directly provides a voltage proportional to the digital input. It belongs to the family of data conversion ICs, which are essential in systems that interface digital processing with the analog world, such as microcontrollers, DSPs, and industrial control systems. The AD667 series is known for its high precision and stability, making it suitable for applications requiring accurate analog signals.
Key features of the AD667SD/883B include 12-bit resolution, a single channel, and a settling time of 3 microseconds. The device operates from a +5V and -5V power supply, and it includes an internal buried Zener reference that provides excellent temperature stability. The double-buffered input latch allows for simultaneous updating of multiple DACs in a system, which is critical in multi-channel applications. The 28-pin CDIP package is hermetically sealed, offering enhanced reliability in harsh environments.
Technically, the AD667SD/883B utilizes a current-steering architecture with a precision R-2R ladder network. The buried Zener reference ensures low noise and low drift over temperature, which is essential for high-accuracy applications. The device is designed to be microprocessor-compatible, with a parallel interface that can be easily connected to standard digital buses. The output voltage range is typically 0V to +10V or +/-5V, depending on the configuration, and it can drive loads up to 5mA.
Typical applications include industrial process control, test and measurement equipment, and military/aerospace systems where high precision and reliability are paramount. The AD667SD/883B is also used in audio equipment for crystal-clear signal generation, as noted in comparison data. Its fast settling time and low glitch energy make it suitable for waveform generation and closed-loop control systems.
When designing with the AD667SD/883B, it is important to provide adequate decoupling on the power supply pins and to ensure a clean analog ground plane. The reference output should be buffered if external loads are connected. Additionally, the digital inputs should be properly terminated to avoid noise-induced errors. The device is specified for operation over the full military temperature range of -55C to +125C, making it suitable for demanding environments.
ドロップイン代替品: AD667SD/883B — 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:
AD667BD
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD667JPZ
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD667KN
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD667JPZ-REEL
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD667SD
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD667SD/883B 最大定格＆電気的特性
| 分解能 | 12 bit |
| Number of Channels | 1 Channel |
| Settling Time | 3 us |
| 出力タイプ | Voltage |
| Architecture | Current Steering |
| Reference Type | Internal, Buried Zener |
| インターフェース | Parallel |
| 電源電圧 | +5V, -5V |
| 動作温度範囲 | -55C to +125C |
| パッケージ | 28-CDIP |
| 実装タイプ | Through Hole |
| RoHS | No |
| MIL-STD-883 | Compliant |
AD667SD/883B ピン構成
| ピン 1 | VREF — Reference voltage output |
| ピン 2 | VOUT — Analog output voltage |
| ピン 3 | AGND — Analog ground |
| ピン 4 | DGND — Digital ground |
| ピン 5 | DB0 — Data bit 0 (LSB) |
| ピン 6 | DB1 — Data bit 1 |
| ピン 7 | DB2 — Data bit 2 |
| ピン 8 | DB3 — Data bit 3 |
| ピン 9 | DB4 — Data bit 4 |
| ピン 10 | DB5 — Data bit 5 |
| ピン 11 | DB6 — Data bit 6 |
| ピン 12 | DB7 — Data bit 7 |
| ピン 13 | DB8 — Data bit 8 |
| ピン 14 | DB9 — Data bit 9 |
| ピン 15 | DB10 — Data bit 10 |
| ピン 16 | DB11 — Data bit 11 (MSB) |
| ピン 17 | CS — Chip select |
| ピン 18 | WR — Write strobe |
| ピン 19 | LDAC — Load DAC |
| ピン 20 | CLR — Clear |
| ピン 21 | VCC — Positive supply (+5V) |
| ピン 22 | VEE — Negative supply (-5V) |
| ピン 23 | NC — No connect |
| ピン 24 | NC — No connect |
| ピン 25 | NC — No connect |
| ピン 26 | NC — No connect |
| ピン 27 | NC — No connect |
| ピン 28 | NC — No connect |
主な用途
AD667SD/883B の用途: 6 件s: Industrial Process Control, Test and Measurement Equipment, Military and Aerospace Systems, Audio Equipment, Data Acquisition Systems, Closed-Loop Control Systems.
Industrial Process Control
The AD667SD/883B provides precise analog output for controlling valves, actuators, and motor drives in industrial automation. Its 12-bit resolution and 3us settling time ensure accurate and responsive control. The wide temperature range and MIL-STD-883 compliance make it suitable for harsh factory environments. The internal reference simplifies design, reducing component count and improving reliability.
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Test and Measurement Equipment
In test and measurement, the AD667SD/883B generates precise voltage waveforms for signal generators and calibration equipment. Its fast settling time and low glitch energy enable accurate waveform reproduction. The double-buffered input allows synchronized updates in multi-channel systems. The hermetically sealed CDIP package ensures long-term stability in laboratory environments.
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Military and Aerospace Systems
The AD667SD/883B is designed for military and aerospace applications requiring high reliability and extended temperature ranges. Its MIL-STD-883 compliance ensures it meets stringent quality standards. The internal buried Zener reference provides stable performance over temperature, critical for navigation and control systems. The 28-pin CDIP package is hermetically sealed, protecting against moisture and contaminants.
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Audio Equipment
The AD667SD/883B is used in high-end audio equipment for digital-to-analog conversion, providing crystal-clear signal generation. Its 12-bit resolution and low noise ensure high-fidelity audio output. The fast settling time minimizes distortion, making it suitable for professional audio interfaces and mixing consoles. The internal reference reduces external noise sources, enhancing audio quality.
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Data Acquisition Systems
In data acquisition systems, the AD667SD/883B provides analog output for stimulus or control signals. Its parallel interface simplifies connection to microcontrollers and DSPs. The double-buffered latch allows simultaneous updates, essential for synchronized multi-channel systems. The wide operating temperature range makes it suitable for remote or outdoor installations.
おすすめ
Closed-Loop Control Systems
The AD667SD/883B is ideal for closed-loop control systems where precise analog output is required. Its 3us settling time enables fast response in servo loops and motor control. The internal reference ensures stable output over temperature, reducing drift. The device's robustness and MIL-STD-883 compliance make it suitable for critical control applications in industrial and aerospace settings.
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おすすめ製品の概要
エンジニアリング参考データ: AD667SD/883B — 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 | AD667BD | AD667JPZ | AD667KN |
|---|---|---|---|---|
| Package | 28-CDIP | 28-CDIP | 28-PLCC | 28-CDIP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit |
| Settling Time | 3 us | 3 us | 3 us | 3 us |
| Number of Channels | 1 | 1 | 1 | 1 |
| RoHS | No | No | No | No |
| MIL-STD-883 | Compliant | No | No | No |
| Operating Temperature | -55C to +125C | 0C to +70C | 0C to +70C | 0C to +70C |
主な差別化要因
- MIL-STD-883 compliance （vs AD667BD)
- Extended temperature range （vs AD667JPZ)
- Hermetic package （vs AD667KN)
設計ノート
The AD667SD/883B requires dual supplies of +5V and -5V. Ensure that both supplies are well-regulated and decoupled with 0.1uF ceramic capacitors placed close to the VCC and VEE pins. A 10uF tantalum capacitor on each supply is recommended for bulk decoupling. The analog and digital grounds should be connected at a single point to minimize noise.
For optimal performance, use a ground plane and separate analog and digital ground areas. Place the DAC close to the load to minimize trace inductance. Keep digital signal traces away from analog output traces to reduce crosstalk. Use short, wide traces for power and ground connections.
Avoid driving the reference output with external loads without buffering, as this can degrade accuracy. Ensure that the digital inputs are not left floating; use pull-up or pull-down resistors as needed. The LDAC pin should be pulsed low to update the output after writing data to the input latch. Failure to do so may result in unexpected output values.
コンプライアンス情報
The AD667SD/883B is not RoHS compliant as indicated in comparison data. It is MIL-STD-883 compliant, indicating military-grade quality.