AD5422ACPZ-REEL7 - 16-Bit V/I Out DAC | Analog Devices
N.º da peça: AD5422ACPZ-REEL7 ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $13.49 | $13,49 |
| 10 | $12.5 | $125,00 |
| 100 | $11.2 | $1.120,00 |
| 500 | $10.1 | $5.050,00 |
| 1.000 | $9.15 | $9.150,00 |
AD5422ACPZ-REEL7 Visão geral
A digital-to-analog converter (DAC) is an electronic circuit that converts digital binary data into an analog voltage or current. The AD5422 belongs to the family of precision DACs used in industrial control loops, where it translates digital setpoints from a microcontroller or FPGA into precise analog signals that drive valves, motors, or transmitters. It is a key component in the signal chain from digital control to physical actuation, bridging the digital and analog domains.
Key features include 16-bit resolution, a flexible serial interface (SPI-compatible), and an on-chip precision reference. The device offers a monotonic output with low integral nonlinearity (INL) and differential nonlinearity (DNL), ensuring accurate analog representation. It also includes a HART (Highway Addressable Remote Transducer) connectivity mode, allowing the DAC to superimpose a frequency-shift keying (FSK) signal on the current loop for smart transmitter communication.
The AD5422 uses a segmented architecture with a precision resistor ladder and a programmable gain amplifier to achieve its output ranges. It operates from a single 10.8 V to 40 V supply for the current loop and a separate digital supply (2.7 V to 5.5 V), enabling direct interface with low-voltage logic. The device includes a power-on reset, a clear pin, and a fault alarm output, enhancing system reliability.
Typical applications include industrial process control, PLC analog output modules, HART transmitters, and actuator control. Its high accuracy and flexible output ranges make it suitable for both current-loop and voltage-output systems, reducing component count and board space.
When designing with the AD5422, ensure proper decoupling of the AVDD and DVDD supplies, and consider the thermal performance of the LFCSP package when driving high current loads. The HART mode requires careful filtering to avoid signal distortion.
Alternativas drop-in para AD5422ACPZ-REEL7 — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com AD5422ACPZ-REEL7 (mesmo formato e footprint) — diferindo em Current Output Range, Interface, Operating Temperature Range, Package, Resolution.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
AD5422ACPZ-REEL
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AD5422BCPZ-REEL7
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AD5422BCPZ-REEL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
AD5420ACPZ-REEL7
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
AD5420ACPZ-REEL
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
DAC7716SRHAT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
AD5422ACPZ-REEL7 Classificações máximas e características elétricas
| Resolução | 16 bit |
| Number of Channels | 1 |
| Tipo de saída | Current and Voltage |
| Current Output Range | 0 mA to 24 mA |
| Voltage Output Ranges | 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V |
| Interface | SPI |
| Supply Voltage (Analog) | 10.8 V to 40 V |
| Supply Voltage (Digital) | 2.7 V to 5.5 V |
| INL (Não linearidade integral) | ±0.012% FSR (max) |
| DNL (Differential Nonlinearity) | ±1 LSB (max) |
| HART Connectivity | Yes |
| Encapsulamento | 40-LFCSP-VQ (6x6 mm) |
| Faixa de temperatura de operação | -40°C to +85°C |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do AD5422ACPZ-REEL7
| Pino 1 | AVDD — Analog supply voltage |
| Pino 2 | AVDD — Analog supply voltage |
| Pino 3 | IOUT — Current output |
| Pino 4 | VOUT — Voltage output |
| Pino 5 | AGND — Analog ground |
| Pino 6 | AGND — Analog ground |
| Pino 7 | REFIN — Reference input |
| Pino 8 | REFOUT — Reference output |
| Pino 9 | DVDD — Digital supply voltage |
| Pino 10 | DGND — Digital ground |
| Pino 11 | SCLK — Serial clock input |
| Pino 12 | SDIN — Serial data input |
| Pino 13 | SYNC — Frame synchronization input |
| Pino 14 | SDO — Serial data output |
| Pino 15 | CLEAR — Clear input |
| Pino 16 | FAULT — Fault alarm output |
| Pino 17 | HART — HART signal input |
| Pino 18 | VREF — Voltage reference |
| Pino 19 | VSS — Negative supply |
| Pino 20 | VSS — Negative supply |
Aplicações típicas
AD5422ACPZ-REEL7 é adequado para 6 aplicaçãos: Industrial Process Control, PLC Analog Output Modules, HART Transmitters, Actuator Control, Test and Measurement Equipment, Building Automation.
Industrial Process Control
The AD5422ACPZ-REEL7 is ideal for industrial process control systems where precise analog output is required to drive actuators, valves, and transmitters. Its programmable current output (0-24 mA) and voltage outputs (0-5 V, 0-10 V, ±5 V, ±10 V) cover standard industrial signal ranges. The 16-bit resolution ensures fine control, and the HART connectivity allows smart transmitter communication over the same loop. The wide analog supply range (10.8 V to 40 V) accommodates various field supply voltages, while the SPI interface simplifies connection to microcontrollers or PLCs. Its low INL and DNL ensure accurate setpoints, reducing system calibration effort.
Recomendado
PLC Analog Output Modules
In programmable logic controllers (PLCs), the AD5422ACPZ-REEL7 serves as a compact, high-accuracy analog output stage. It provides both current and voltage outputs, allowing a single module to support multiple actuator types. The 16-bit resolution meets the precision requirements of modern industrial automation. The device's small 40-LFCSP package saves board space, and its SPI interface enables easy daisy-chaining in multi-channel modules. The HART mode is particularly useful for smart transmitters in process automation. The device's fault alarm output enhances system diagnostics, improving reliability in harsh industrial environments.
Recomendado
HART Transmitters
The AD5422ACPZ-REEL7 is specifically designed for HART (Highway Addressable Remote Transducer) transmitters, enabling digital communication over legacy 4-20 mA loops. Its integrated HART connectivity allows the DAC to superimpose a frequency-shift keying (FSK) signal on the current output, facilitating remote configuration and monitoring. The 16-bit resolution ensures accurate analog output, while the current source can drive up to 24 mA, covering the full HART loop range. The device's low noise and high accuracy are critical for reliable HART communication. The wide supply range and robust industrial temperature range make it suitable for field-mounted transmitters.
Recomendado
Actuator Control
The AD5422ACPZ-REEL7 provides precise analog control signals for actuators such as pneumatic valves, hydraulic positioners, and motor drives. Its programmable current output (0-24 mA) directly drives standard 4-20 mA actuators, while the voltage outputs can interface with voltage-controlled devices. The 16-bit resolution allows fine positioning, and the monotonic output ensures stable control. The device's fast settling time and low glitch energy minimize transient errors during setpoint changes. The SPI interface enables easy integration with control systems, and the fault alarm output can trigger safety shutdowns. The wide supply range supports various actuator supply voltages.
Recomendado
Test and Measurement Equipment
In test and measurement equipment, the AD5422ACPZ-REEL7 serves as a precision stimulus source for generating accurate voltage and current signals. Its 16-bit resolution and low INL/DNL ensure high accuracy for calibration and testing applications. The programmable output ranges allow flexible signal generation, from low-level sensor excitation to high-current loop simulation. The device's SPI interface simplifies integration with FPGAs or microcontrollers in automated test systems. The HART mode is useful for testing smart transmitters. The compact package and wide temperature range make it suitable for benchtop and portable instruments.
Recomendado
Building Automation
The AD5422ACPZ-REEL7 is used in building automation systems for controlling HVAC actuators, lighting dimmers, and valve positioners. Its programmable current and voltage outputs interface with a wide range of building control devices. The 16-bit resolution provides smooth, precise control, enhancing occupant comfort and energy efficiency. The device's low power consumption and wide supply range are suitable for distributed control modules. The SPI interface allows easy connection to building management controllers. The HART mode is not typically used in building automation, but the device's flexibility makes it a versatile choice for various analog output needs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para AD5422ACPZ-REEL7 — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | AD5422ACPZ-REEL | AD5422BCPZ-REEL7 | AD5422BCPZ-REEL | AD5420ACPZ-REEL7 | AD5420ACPZ-REEL | DAC7716SRHAT |
|---|---|---|---|---|---|---|---|
| Package | 40-LFCSP-VQ (6x6) | 40-LFCSP-VQ (6x6) | 40-LFCSP-VQ (6x6) | 40-LFCSP-VQ (6x6) | 40-LFCSP-VQ (6x6) | 40-LFCSP-VQ (6x6) | 40-LFCSP-VQ (6x6) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit | 16 bit |
| Output Type | Current and Voltage | Current and Voltage | Current and Voltage | Current and Voltage | Current only | Current only | Voltage only |
| Current Output Range | 0 mA to 24 mA | 0 mA to 24 mA | 0 mA to 24 mA | 0 mA to 24 mA | 0 mA to 24 mA | 0 mA to 24 mA | N/A |
| Voltage Output Range | 0-5V, 0-10V, ±5V, ±10V | 0-5V, 0-10V, ±5V, ±10V | 0-5V, 0-10V, ±5V, ±10V | 0-5V, 0-10V, ±5V, ±10V | N/A | N/A | 0-5V, 0-10V, ±5V, ±10V |
| HART Connectivity | Yes | Yes | Yes | Yes | Yes | Yes | No |
Principais diferenciais
- Integrated HART connectivity (vs DAC7716SRHAT)
- Dual current and voltage outputs (vs AD5420ACPZ-REEL7)
- Higher accuracy grade (vs AD5422BCPZ-REEL7)
Notas de projeto
The AD5422 requires a clean analog supply (AVDD) from 10.8 V to 40 V and a digital supply (DVDD) from 2.7 V to 5.5 V. Use separate decoupling capacitors (10 µF and 0.1 µF) on each supply pin, placed close to the device. The AVDD supply should be well-regulated and low-noise, as it directly affects the accuracy of the current and voltage outputs. Consider using a low-dropout regulator (LDO) for AVDD if the input supply is noisy.
For optimal performance, use a solid ground plane and place the AD5422 over a continuous ground pour. The exposed pad on the bottom of the LFCSP package should be soldered to the ground plane to improve thermal dissipation and reduce parasitic inductance. Keep analog and digital grounds separate and connect them at a single point near the device. Route the SPI lines (SCLK, SDIN, SYNC) away from analog output traces to minimize digital noise coupling.
A common mistake is neglecting the HART signal filtering. When using HART mode, ensure the HART input is properly filtered to avoid interference with the current output. Also, do not exceed the absolute maximum ratings on AVDD or DVDD. The CLEAR pin should be tied to a defined logic level if unused. Additionally, the reference input (REFIN) must be decoupled with a 0.1 µF capacitor to ground to ensure stable operation.
Informações de conformidade
RoHS compliant per distributor listings. No AEC-Q100 qualification indicated for this industrial DAC.
