AD5422ACPZ - 16-Bit Current/Voltage Output DAC | Analog Devices
MPN: AD5422ACPZ ✓ نشطAD5422ACPZ نظرة عامة
A DAC (digital-to-analog converter) is an electronic component that converts digital binary data into an analog voltage or current. The AD5422 is a precision DAC that integrates a current source and voltage output, making it a complete analog output stage for industrial control systems. It belongs to the family of smart DACs that combine digital-to-analog conversion with additional features like fault detection and HART communication.
Key features include 16-bit resolution, a current output range of 4 mA to 20 mA (with additional ranges), a voltage output range of 0 V to 5 V, 0 V to 10 V, ±5 V, and ±10 V, and a settling time of 10 µs. The device offers a total unadjusted error (TUE) of ±0.1% FSR, and includes a precision 5 ppm/°C internal reference. It also features a flexible serial interface, a power-on reset to zero-scale, and a fault alarm output.
The AD5422 uses a segmented architecture with a precision resistor ladder and a high-speed output amplifier. It includes a programmable gain and offset, and supports HART signal modulation for smart transmitter applications. The device operates over a temperature range of -40°C to +85°C and is available in a lead-free, RoHS-compliant package.
Typical applications include process control, PLC analog output modules, industrial automation, and HART network transmitters. The AD5422's high accuracy and flexibility make it suitable for driving actuators, valves, and other analog control elements.
When designing with the AD5422, ensure proper decoupling of the AVDD and DVDD supplies, and use a clean analog ground plane. The device requires an external reference for best performance, and the output amplifier can drive capacitive loads up to 1000 pF.
بدائل مباشرة لـ AD5422ACPZ — 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 AD5422ACPZ (نفس عامل الشكل والبصمة) — يختلف في Interface, Package, Resolution, Current Output Range, DNL (Differential Nonlinearity).
AD5422BCPZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
AD5412ACPZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←AD5422ACPZ-REEL
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
AD5422ACPZ-REEL7
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←AD5422ACPZ الحدود القصوى والخصائص الكهربائية
| الدقة | 16 bit |
| Number of Channels | 1 |
| نوع الخرج | Current and Voltage |
| Current Output Range | 4 mA to 20 mA, 0 mA to 20 mA, 0 mA to 24 mA |
| Voltage Output Range | 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V |
| Settling Time | 10 µs |
| Total Unadjusted Error (TUE) | ±0.1% FSR |
| جهد التغذية | 10.8 V to 40 V |
| جهد المرجع | Internal 5 ppm/°C, external optional |
| الواجهة | SPI, QSPI, MICROWIRE |
| نطاق درجة حرارة التشغيل | -40°C to +85°C |
| العلبة | 40-Lead LFCSP-VQ (6x6 mm) |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant |
| HART Connectivity | Yes |
تكوين أطراف AD5422ACPZ
| دبوس 1 | AVDD — Analog supply voltage |
| دبوس 2 | DVDD — Digital supply voltage |
| دبوس 3 | IOUT — Current output |
| دبوس 4 | VOUT — Voltage output |
| دبوس 5 | REFIN — Reference input |
| دبوس 6 | REFOUT — Reference output |
| دبوس 7 | SCLK — Serial clock input |
| دبوس 8 | SDIN — Serial data input |
| دبوس 9 | SYNC — Frame synchronization input |
| دبوس 10 | SDO — Serial data output |
| دبوس 11 | CLEAR — Clear input |
| دبوس 12 | FAULT — Fault alarm output |
| دبوس 13 | GND — Ground |
| دبوس 14 | AGND — Analog ground |
| دبوس 15 | DGND — Digital ground |
التطبيقات النموذجية
AD5422ACPZ مناسب لـ 6 التطبيقs: Process Control, PLC Analog Output Modules, Industrial Automation, HART Network Transmitters, Test and Measurement Equipment, Motor Control Systems.
Process Control
The AD5422ACPZ is ideal for process control systems where precise analog output is required to drive actuators, valves, and transmitters. Its 16-bit resolution and programmable current output (4-20 mA) ensure accurate control signals. The device's fast settling time of 10 µs allows for rapid updates in closed-loop control, while the integrated fault alarm enhances system reliability. The wide supply range (10.8 V to 40 V) accommodates industrial power rails, and the SPI interface simplifies integration with microcontrollers.
موصى به
PLC Analog Output Modules
In programmable logic controllers (PLCs), the AD5422ACPZ provides a compact, high-accuracy analog output stage. Its voltage output modes (0-10 V, ±10 V) and current output modes (4-20 mA) cover standard industrial signal ranges. The device's HART connectivity enables smart transmitter communication, making it suitable for advanced PLC modules. The 40-lead LFCSP package saves board space, and the SPI interface allows daisy-chaining multiple DACs for multi-channel modules.
موصى به
Industrial Automation
The AD5422ACPZ is well-suited for industrial automation systems that require precise analog control of motors, valves, and other actuators. Its 16-bit resolution and low TUE (±0.1% FSR) ensure accurate positioning and control. The device's programmable current output can directly drive 4-20 mA loops, common in industrial sensors and actuators. The robust operating temperature range (-40°C to +85°C) and wide supply voltage make it reliable in harsh factory environments.
موصى به
HART Network Transmitters
The AD5422ACPZ is specifically designed for HART (Highway Addressable Remote Transducer) network transmitters. Its integrated HART connectivity allows superimposing digital communication on the 4-20 mA analog signal, enabling smart field devices. The device's high accuracy and low noise ensure reliable HART communication. The voltage output mode can be used for local indication, while the current output drives the loop. This makes the AD5422ACPZ a key component in smart transmitters for process industries.
موصى به
Test and Measurement Equipment
In test and measurement equipment, the AD5422ACPZ provides a stable, accurate analog output for calibration and signal generation. Its 16-bit resolution and low TUE make it suitable for precision instruments. The device's fast settling time (10 µs) enables high-speed waveform generation. The programmable voltage and current outputs allow flexible signal conditioning. The SPI interface and small package facilitate integration into compact benchtop or portable instruments.
موصى به
Motor Control Systems
The AD5422ACPZ can be used in motor control systems to provide precise analog reference signals for variable speed drives. Its 16-bit resolution and low noise ensure smooth motor operation. The voltage output mode can generate speed reference voltages, while the current output can be used for torque control. The device's wide supply range and robust design make it suitable for industrial motor drives. The SPI interface allows easy integration with motor control MCUs.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ AD5422ACPZ — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | AD5422BCPZ | AD5412ACPZ | AD5422ACPZ-REEL | AD5422ACPZ-REEL7 | DAC8760IPWPR |
|---|---|---|---|---|---|---|
| Package | 40-Lead LFCSP-VQ (6x6 mm) | 40-Lead LFCSP-VQ (6x6 mm) | 40-Lead LFCSP-VQ (6x6 mm) | 40-Lead LFCSP-VQ (6x6 mm) | 40-Lead LFCSP-VQ (6x6 mm) | 20-Lead HTSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 16 bit | 16 bit | 12 bit | 16 bit | 16 bit | 16 bit |
| Total Unadjusted Error (TUE) | ±0.1% FSR | ±0.05% FSR | ±0.1% FSR | ±0.1% FSR | ±0.1% FSR | ±0.1% FSR |
| Settling Time | 10 µs | 10 µs | 10 µs | 10 µs | 10 µs | 10 µs |
| Supply Voltage | 10.8 V to 40 V | 10.8 V to 40 V | 10.8 V to 40 V | 10.8 V to 40 V | 10.8 V to 40 V | 10.8 V to 36 V |
| HART Connectivity | Yes | Yes | Yes | Yes | Yes | Yes |
| Interface | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI |
أبرز الفروقات
- Higher accuracy grade available (مقابلAD5422BCPZ)
- 16-bit resolution vs 12-bit (مقابلAD5412ACPZ)
- Pin-compatible with AD5422 family (مقابلDAC8760IPWPR)
ملاحظات التصميم
The AD5422ACPZ requires a clean analog supply (AVDD) and digital supply (DVDD). Use separate analog and digital ground planes and connect them at a single point. Decouple AVDD with a 10 µF tantalum capacitor in parallel with a 0.1 µF ceramic capacitor placed close to the AVDD pin. For DVDD, use a 1 µF ceramic capacitor. Ensure the supply voltage is within the 10.8 V to 40 V range to avoid damage.
For optimal performance, place the AD5422ACPZ on a PCB with a solid ground plane. Keep the analog output traces (IOUT, VOUT) short and shielded from digital signals. Use a 4-layer PCB with dedicated power and ground planes. The exposed pad on the LFCSP package should be soldered to the ground plane for thermal and electrical performance. Follow the layout guidelines in the AD5422 datasheet (Rev. P) for best results.
A common mistake is neglecting the reference input. The AD5422ACPZ can use an internal reference, but for best accuracy, use an external precision reference. Also, ensure the serial interface timing meets the specifications in the datasheet. The CLEAR pin should be tied to a known state to avoid unintended resets. Additionally, the FAULT output should be monitored in software to detect overcurrent or overtemperature conditions.
معلومات الامتثال
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified. Lead-free package.
