AD5412ACPZ - 12-Bit Current/Voltage Output DAC | Analog Devices
MPN: AD5412ACPZ ✓ نشطAD5412ACPZ نظرة عامة
A digital-to-analog converter (DAC) is a device that converts digital binary data into an analog voltage or current signal. The AD5412 is a precision DAC with an integrated output amplifier and reference buffer, enabling direct interface to actuators, transmitters, and other industrial control elements. It belongs to the family of smart DACs that combine digital-to-analog conversion with programmable output ranges and diagnostic features, making it a key component in programmable logic controllers (PLCs), distributed control systems (DCS), and field transmitters.
Key features of the AD5412ACPZ include a 12-bit resolution with monotonicity guaranteed, a flexible serial interface compatible with SPI, QSPI, and MICROWIRE protocols, and an on-chip precision reference (2.5V) with a temperature coefficient of 10 ppm/°C. The device also includes a HART (Highway Addressable Remote Transducer) compliant interface, allowing it to be used in smart transmitters that require superimposed digital communication on the analog current loop. The output is protected against short circuits and can drive capacitive loads up to 1 µF.
Technically, the AD5412 uses a segmented architecture with a precision current-steering DAC core, followed by a programmable gain amplifier and output driver. The device includes a power-on reset circuit that ensures the output is at zero-scale or mid-scale on power-up, and a clear pin that resets the output to a defined state. The digital interface supports daisy-chaining for multiple devices on a single serial bus, and the device can be configured for either current or voltage output mode via the control register.
Typical applications include industrial process control, PLC analog output modules, HART transmitters, and actuator control. The AD5412's ability to provide both current and voltage outputs with high accuracy and low drift makes it ideal for driving valves, positioners, and other field devices. Its HART compatibility enables seamless integration into existing 4-20 mA loop infrastructure.
When designing with the AD5412ACPZ, ensure that the supply voltage is adequately decoupled with a 10 µF tantalum capacitor and a 0.1 µF ceramic capacitor placed close to the AVDD and DVDD pins. The reference output should be buffered if external loads are connected, and the output amplifier's stability should be verified with the expected capacitive load. For best performance, use a clean analog ground plane and separate digital and analog supply traces.
بدائل مباشرة لـ AD5412ACPZ — 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 AD5412ACPZ (نفس عامل الشكل والبصمة) — يختلف في Resolution.
AD5422ACPZ
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←AD5413BCPZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
AD5423BCPZ
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
DAC8760IPWPR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
DAC8760IPWPR
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
AD5412ACPZ الحدود القصوى والخصائص الكهربائية
| الدقة | 12 bits |
| Number of Channels | 1 |
| نوع الخرج | Current and Voltage |
| Current Output Ranges | 4-20 mA, 0-20 mA, 0-24 mA |
| Voltage Output Ranges | 0-5 V, 0-10 V, ±5 V, ±10 V |
| Supply Voltage Range | 10.8 V to 40 V |
| الواجهة | SPI, QSPI, MICROWIRE |
| Internal Reference | 2.5 V, 10 ppm/°C |
| INL (اللاخطية التكاملية) | ±0.012% FSR (max) |
| DNL (Differential Nonlinearity) | ±0.012% FSR (max) |
| ضجيج الخرج | 60 nV/√Hz (typical) |
| نطاق درجة حرارة التشغيل | -40°C to +85°C |
| العلبة | 40-Lead LFCSP-VQ (6x6 mm) |
| نوع التركيب | Surface Mount |
| حالة RoHS | Compliant |
تكوين أطراف AD5412ACPZ
| دبوس 1 | AVDD — Analog supply voltage (10.8V to 40V) |
| دبوس 2 | DVDD — Digital supply voltage (2.7V to 5.5V) |
| دبوس 3 | GND — Ground |
| دبوس 4 | IOUT — Current output |
| دبوس 5 | VOUT — Voltage output |
| دبوس 6 | SCLK — Serial clock input |
| دبوس 7 | SDIN — Serial data input |
| دبوس 8 | SYNC — Frame synchronization input |
| دبوس 9 | CLEAR — Clear output to zero-scale or mid-scale |
| دبوس 10 | REFIN/REFOUT — Reference input/output |
| دبوس 11 | RSET — External resistor for current output gain |
| دبوس 12 | VREF — Voltage reference output |
التطبيقات النموذجية
AD5412ACPZ مناسب لـ 6 التطبيقs: Industrial Process Control, HART Transmitters, Actuator Control, PLC Analog Output Modules, Test and Measurement Equipment, Building Automation.
Industrial Process Control
The AD5412ACPZ is ideal for industrial process control systems, such as PLC analog output modules and DCS systems. Its programmable current output (4-20 mA) directly drives actuators, valves, and transmitters, providing precise control with 12-bit resolution. The device's wide supply range (10.8V to 40V) accommodates industrial power rails, and its HART interface enables smart transmitter functionality. The integrated output protection ensures reliable operation in harsh environments, while the SPI interface allows easy integration with microcontrollers. With INL of ±0.012% FSR, the AD5412 ensures accurate loop control, critical for maintaining process variables within tight tolerances.
موصى به
HART Transmitters
The AD5412ACPZ is specifically designed for HART (Highway Addressable Remote Transducer) transmitters, enabling digital communication over 4-20 mA loops. Its HART-compliant interface allows the superposition of FSK signals on the current output, facilitating remote calibration and diagnostics. The device's low output noise (60 nV/√Hz) ensures reliable HART signal integrity, and its programmable current ranges support standard loop configurations. The integrated reference and power-on reset simplify transmitter design, while the SPI interface enables configuration of HART-specific parameters. This makes the AD5412 a key component in smart transmitters for pressure, temperature, and flow measurement.
موصى به
Actuator Control
The AD5412ACPZ provides precise analog output for controlling actuators such as pneumatic valves, positioners, and motor drives. Its voltage output modes (0-10 V, ±10 V) can directly drive actuator input stages, while the current output (4-20 mA) is standard for industrial actuators. The device's monotonicity and low INL ensure accurate positioning, and its short-circuit protection prevents damage during wiring faults. The clear pin allows safe reset of the output to a known state during system startup. With a settling time of 10 µs, the AD5412 supports fast control loops, making it suitable for dynamic actuator applications.
موصى به
PLC Analog Output Modules
The AD5412ACPZ is a core component in PLC analog output modules, providing isolated or non-isolated current/voltage outputs. Its multiple output ranges (0-20 mA, 0-10 V, etc.) allow a single module to support various field devices. The device's daisy-chainable SPI interface enables multiple channels to be controlled with minimal digital I/O, reducing module complexity. The integrated reference and power-on reset simplify module design, and the wide supply range supports common PLC power rails (24V). The AD5412's accuracy and stability ensure reliable analog output for industrial automation, meeting the stringent requirements of IEC 61131-2.
موصى به
Test and Measurement Equipment
The AD5412ACPZ is used in test and measurement equipment for generating precise analog signals. Its programmable voltage output (0-10 V, ±10 V) can serve as a reference or stimulus for testing other circuits. The device's low noise and high accuracy (INL ±0.012% FSR) make it suitable for calibration and signal generation. The SPI interface allows easy integration with microcontrollers for automated test systems. The device's small LFCSP package saves board space, and its wide temperature range (-40°C to +85°C) supports benchtop and field instruments. The HART capability also enables testing of HART-enabled devices.
موصى به
Building Automation
The AD5412ACPZ is suitable for building automation systems, such as HVAC controllers and lighting control. Its 4-20 mA output can drive actuators for dampers and valves, while the 0-10 V output is compatible with many building control interfaces. The device's low power consumption and wide supply range (10.8V to 40V) make it adaptable to various building power systems. The HART interface is not typically used in building automation, but the device's flexibility allows it to be configured for simple analog control. The integrated protection features ensure reliable operation in commercial environments, and the SPI interface enables connection to building management controllers.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ AD5412ACPZ — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | AD5422ACPZ | AD5413BCPZ | 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) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 12 bits | 16 bits | 12 bits | 16 bits |
| Current Output Ranges | 4-20 mA, 0-20 mA, 0-24 mA | 4-20 mA, 0-20 mA, 0-24 mA | 4-20 mA, 0-20 mA, 0-24 mA | 4-20 mA, 0-20 mA, 0-24 mA |
| Voltage Output Ranges | 0-5 V, 0-10 V, ±5 V, ±10 V | 0-5 V, 0-10 V, ±5 V, ±10 V | 0-5 V, 0-10 V, ±5 V, ±10 V | 0-5 V, 0-10 V, ±5 V, ±10 V |
| Supply Voltage Range | 10.8V to 40V | 10.8V to 40V | 10.8V to 40V | 10.8V to 40V |
| HART Support | Yes | Yes | Yes | Yes |
| Interface | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI, QSPI, MICROWIRE | SPI |
أبرز الفروقات
- Integrated HART connectivity (مقابلDAC8760IPWPR)
- Lower cost for 12-bit resolution (مقابلAD5422ACPZ)
- Wider supply voltage range (مقابلAD5413BCPZ)
ملاحظات التصميم
The AD5412ACPZ requires a clean analog supply (AVDD) between 10.8V and 40V. Use a 10 µF tantalum capacitor in parallel with a 0.1 µF ceramic capacitor placed close to the AVDD pin to filter high-frequency noise. The digital supply (DVDD) should be between 2.7V and 5.5V and can be derived from a separate LDO to avoid digital noise coupling into the analog output.
For optimal performance, use a solid ground plane and separate analog and digital ground traces, connecting them at a single point near the device. Place the reference decoupling capacitor (0.1 µF) close to the REFIN/REFOUT pin. The RSET pin should have a precision resistor (typically 15 kΩ) connected to ground to set the current output gain; place it close to the pin to minimize parasitic inductance.
Ensure the output load does not exceed the specified capacitive load (1 µF) to maintain stability. When using the voltage output, avoid connecting external loads that draw more than 10 mA. The CLEAR pin should be tied to a defined logic level during power-up to prevent undefined output states. Also, verify that the SPI signals are properly level-shifted if the host microcontroller operates at a different voltage than DVDD.
معلومات الامتثال
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified as it is not an automotive-grade part.
