AD5381BSTZ-3 - 40-Channel 12-Bit DAC | Analog Devices
MPN: AD5381BSTZ-3 ✓ نشطAD5381BSTZ-3 نظرة عامة
A digital-to-analog converter (DAC) is an electronic component that converts digital binary data into an analog voltage or current. In the hierarchy of signal processing, a DAC is a key element in the data converter family, which also includes analog-to-digital converters (ADCs). DACs are essential in systems where digital processing must interface with the analog world, such as in audio playback, motor control, and instrumentation. The AD5381 is a dense DAC, integrating 40 channels in a single package, which reduces board space and simplifies multi-channel systems.
Key features of the AD5381BSTZ-3 include 12-bit resolution, 40 independent output channels, a settling time of 8 µs, and a programmable internal reference with 10 ppm/°C drift. The device also offers a power-on reset to zero-scale or midscale, and a clear function to reset outputs. The rail-to-rail output amplifiers allow the outputs to swing close to the supply rails, maximizing dynamic range. The channel monitor function simplifies system diagnostics by allowing external monitoring of any channel.
Technically, the AD5381 uses a resistor-string architecture with an output buffer for each channel, ensuring monotonicity and low glitch. The device supports both serial and parallel interfaces, with the SER/PAR pin selecting the mode. In serial mode, the SPI/I2C pin (Pin 97) must be tied low for SPI-compatible operation. The internal reference can be programmed to 1.25 V or 2.5 V via the control register, but operating with 2.5 V reference degrades accuracy and limits input code range, as noted in the datasheet.
Typical applications include industrial process control, automated test equipment, multi-channel data acquisition systems, and precision instrumentation. The 40-channel density and 3 V operation make it ideal for systems requiring many analog outputs with minimal power consumption. The device's rail-to-rail outputs and programmable reference enhance flexibility in various voltage domains.
When designing with the AD5381BSTZ-3, ensure adequate decoupling on the AVDD and DVDD supplies, and consider the reference voltage selection carefully to meet accuracy requirements. The channel monitor function can be used for system-level calibration and fault detection.
بدائل مباشرة لـ AD5381BSTZ-3 — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع AD5381BSTZ-3 (نفس عامل الشكل والبصمة) — يختلف في Supply Voltage, Resolution, Internal Reference, Settling Time, Number of Channels.
AD5381BSTZ-5
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←AD5371BSTZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
AD5372BSTZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←AD5380BSTZ-3
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
AD5381BSTZ-3
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←AD5381BSTZ-3 الحدود القصوى والخصائص الكهربائية
| الدقة | 12 bits |
| Number of Channels | 40 |
| جهد التغذية | 3 V single supply |
| Settling Time | 8 µs |
| نوع الخرج | Voltage - buffered |
| Output Amplifier | Rail-to-rail |
| Internal Reference | 1.25 V (default), programmable to 2.5 V |
| Reference Temperature Coefficient | 10 ppm/°C |
| الواجهة | Parallel, SPI, DSP, MICROWIRE |
| العلبة | 100-lead LQFP (14x14 mm) |
| نطاق درجة حرارة التشغيل | -40°C to +85°C |
| Power-On Reset | Zero-scale or midscale |
| Channel Monitor | Yes (MON_OUT pin) |
| RoHS | Compliant |
| نوع التركيب | Surface Mount |
تكوين أطراف AD5381BSTZ-3
| دبوس 1 | VOUT0 — Analog output channel 0 |
| دبوس 2 | VOUT1 — Analog output channel 1 |
| دبوس 3 | VOUT2 — Analog output channel 2 |
| دبوس 4 | VOUT3 — Analog output channel 3 |
| دبوس 5 | VOUT4 — Analog output channel 4 |
| دبوس 6 | VOUT5 — Analog output channel 5 |
| دبوس 7 | VOUT6 — Analog output channel 6 |
| دبوس 8 | VOUT7 — Analog output channel 7 |
| دبوس 9 | VOUT8 — Analog output channel 8 |
| دبوس 10 | VOUT9 — Analog output channel 9 |
| دبوس 11 | VOUT10 — Analog output channel 10 |
| دبوس 12 | VOUT11 — Analog output channel 11 |
| دبوس 13 | VOUT12 — Analog output channel 12 |
| دبوس 14 | VOUT13 — Analog output channel 13 |
| دبوس 15 | VOUT14 — Analog output channel 14 |
| دبوس 16 | VOUT15 — Analog output channel 15 |
| دبوس 17 | VOUT16 — Analog output channel 16 |
| دبوس 18 | VOUT17 — Analog output channel 17 |
| دبوس 19 | VOUT18 — Analog output channel 18 |
| دبوس 20 | VOUT19 — Analog output channel 19 |
| دبوس 21 | VOUT20 — Analog output channel 20 |
| دبوس 22 | VOUT21 — Analog output channel 21 |
| دبوس 23 | VOUT22 — Analog output channel 22 |
| دبوس 24 | VOUT23 — Analog output channel 23 |
| دبوس 25 | VOUT24 — Analog output channel 24 |
| دبوس 26 | VOUT25 — Analog output channel 25 |
| دبوس 27 | VOUT26 — Analog output channel 26 |
| دبوس 28 | VOUT27 — Analog output channel 27 |
| دبوس 29 | VOUT28 — Analog output channel 28 |
| دبوس 30 | VOUT29 — Analog output channel 29 |
| دبوس 31 | VOUT30 — Analog output channel 30 |
| دبوس 32 | VOUT31 — Analog output channel 31 |
| دبوس 33 | VOUT32 — Analog output channel 32 |
| دبوس 34 | VOUT33 — Analog output channel 33 |
| دبوس 35 | VOUT34 — Analog output channel 34 |
| دبوس 36 | VOUT35 — Analog output channel 35 |
| دبوس 37 | VOUT36 — Analog output channel 36 |
| دبوس 38 | VOUT37 — Analog output channel 37 |
| دبوس 39 | VOUT38 — Analog output channel 38 |
| دبوس 40 | VOUT39 — Analog output channel 39 |
| دبوس 41 | AVDD — Analog power supply |
| دبوس 42 | AVSS — Analog ground |
| دبوس 43 | DVDD — Digital power supply |
| دبوس 44 | DGND — Digital ground |
| دبوس 45 | REFIN/REFOUT — Reference input/output |
| دبوس 46 | MON_OUT — Channel monitor output |
| دبوس 47 | SER/PAR — Serial/parallel interface select |
| دبوس 48 | SPI/I2C — SPI or I2C select (pin 97) |
| دبوس 49 | SCLK — Serial clock |
| دبوس 50 | SDIN — Serial data input |
| دبوس 51 | SYNC — Frame synchronization |
| دبوس 52 | LDAC — Load DAC |
| دبوس 53 | CLR — Clear |
| دبوس 54 | RESET — Reset |
| دبوس 55 | A0-A9 — Address inputs |
| دبوس 56 | DB0-DB11 — Parallel data inputs |
| دبوس 57 | CS — Chip select |
| دبوس 58 | WR — Write |
| دبوس 59 | RD — Read |
| دبوس 60 | BUSY — Busy output |
التطبيقات النموذجية
AD5381BSTZ-3 مناسب لـ 6 التطبيقs: Industrial Process Control, Automated Test Equipment (ATE), Multi-Channel Data Acquisition Systems, Precision Instrumentation, Medical Equipment, Audio Test and Measurement.
Industrial Process Control
The AD5381BSTZ-3 provides 40 independent 12-bit analog outputs for controlling valves, actuators, and setpoints in industrial automation. Its 3 V single-supply operation and rail-to-rail outputs allow direct interface with low-voltage control loops. The 8 µs settling time enables fast updates for real-time process adjustments. The channel monitor function simplifies system diagnostics by allowing external monitoring of any output. With a programmable internal reference, the device can be calibrated for various industrial signal ranges, making it ideal for PLCs and distributed control systems.
موصى به
Automated Test Equipment (ATE)
In ATE, the AD5381BSTZ-3 generates precise analog stimulus voltages for testing DUTs. Its 40 channels allow simultaneous stimulation of multiple pins, reducing test time. The 12-bit resolution and 8 µs settling time provide accurate and fast signal generation. The rail-to-rail outputs ensure full-scale voltage coverage. The channel monitor function enables real-time verification of output levels. The device's serial interface simplifies integration with FPGA-based test controllers. Its industrial temperature range ensures reliable operation in test environments.
موصى به
Multi-Channel Data Acquisition Systems
The AD5381BSTZ-3 is ideal for data acquisition systems requiring many analog outputs, such as waveform generators and programmable voltage sources. Its 40 channels provide high density, reducing board space. The 3 V supply is compatible with low-power systems. The internal reference with 10 ppm/°C drift ensures stable output over temperature. The channel monitor allows output verification. The device's parallel interface enables high-speed updates for dynamic waveforms. The rail-to-rail outputs maximize dynamic range for signal generation.
موصى به
Precision Instrumentation
In precision instruments like calibrators and signal generators, the AD5381BSTZ-3 provides accurate analog outputs. Its 12-bit resolution and low drift reference ensure high accuracy. The 40 channels allow multiple independent outputs for complex test setups. The rail-to-rail outputs provide wide voltage swings. The channel monitor function aids in calibration. The device's small LQFP package saves space in benchtop instruments. The industrial temperature range ensures stability in lab environments.
موصى به
Medical Equipment
The AD5381BSTZ-3 can be used in medical devices requiring multiple analog outputs, such as patient monitoring systems and diagnostic equipment. Its 3 V operation is suitable for battery-powered devices. The 40 channels allow control of multiple parameters. The rail-to-rail outputs interface with various actuators. The channel monitor function enables safety checks. The device's low power consumption extends battery life. The industrial temperature range covers medical environments.
موصى به
Audio Test and Measurement
The AD5381BSTZ-3 can generate multiple analog test signals for audio equipment testing. Its 40 channels allow simultaneous testing of multi-channel audio systems. The 12-bit resolution provides adequate signal fidelity for many test applications. The 8 µs settling time enables fast frequency sweeps. The rail-to-rail outputs drive audio inputs directly. The channel monitor function allows output verification. The device's serial interface simplifies integration with audio test software.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ AD5381BSTZ-3 — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | AD5381BSTZ-5 | AD5371BSTZ | AD5372BSTZ | AD5380BSTZ-3 |
|---|---|---|---|---|---|
| Package | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) | 100-lead LQFP (14x14 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 12 bits | 12 bits | 14 bits | 14 bits | 14 bits |
| Number of Channels | 40 | 40 | 40 | 32 | 40 |
| Supply Voltage | 3 V | 5 V | 3 V or 5 V | 3 V or 5 V | 3 V |
| Settling Time | 8 µs | 8 µs | 8 µs | 8 µs | 8 µs |
| Internal Reference | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V | 1.25 V (default), programmable to 2.5 V |
| Interface | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE | Parallel, SPI, DSP, MICROWIRE |
أبرز الفروقات
- 40-channel density in a 100-lead LQFP (مقابلAD5372BSTZ)
- 12-bit resolution with 8 µs settling time (مقابلAD5371BSTZ)
- 3 V single-supply operation (مقابلAD5381BSTZ-5)
ملاحظات التصميم
The AD5381BSTZ-3 requires a 3 V analog supply (AVDD) and a digital supply (DVDD). Ensure adequate decoupling with 0.1 µF and 10 µF capacitors close to the AVDD and DVDD pins. The reference pin (REFIN/REFOUT) should be decoupled with a 1 µF capacitor to ground. Proper power supply sequencing is recommended to avoid latch-up.
For optimal performance, place the AD5381BSTZ-3 on a PCB with a solid ground plane. Keep analog and digital grounds separate and connect them at a single point. Route analog output traces away from digital signals to minimize noise coupling. Use short, wide traces for power and ground to reduce inductance.
When using the serial interface, ensure the SER/PAR pin is tied high and the SPI/I2C pin (Pin 97) is tied low for SPI mode. Do not operate the device with a 2.5 V reference if you require full accuracy, as the datasheet warns of degraded accuracy and limited input code range. Always verify the reference voltage setting in the control register.
معلومات الامتثال
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
