AD4008BRUZ - 16-Bit 500kSPS SAR ADC | Analog Devices
N.º da peça: AD4008BRUZ ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $5.83 | $5,83 |
| 10 | $5.25 | $52,50 |
| 100 | $4.67 | $467,00 |
| 500 | $4.2 | $2.100,00 |
| 1.000 | $3.73 | $3.730,00 |
AD4008BRUZ Visão geral
A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input to a digital output. It is known for its high speed, low power consumption, and excellent accuracy, making it ideal for applications such as data acquisition, industrial process control, and medical instrumentation. The AD4008BRUZ is part of the AD4000/AD4004/AD4008 family, which incorporates Easy Drive features like high-Z mode and an extended acquisition phase to simplify the driving amplifier requirements.
Key features of the AD4008BRUZ include a 16-bit resolution, 500 kSPS sampling rate, and a signal-to-noise ratio (SNR) of 94 dB. It also offers a low power consumption of 3.5 mW at 500 kSPS, making it suitable for battery-powered and portable devices. The device includes a high-Z mode that reduces the input current, allowing direct connection to sensors without an external buffer. Additionally, the extended acquisition phase enables the use of lower bandwidth amplifiers, reducing system cost and complexity.
The AD4008BRUZ uses a charge redistribution SAR architecture with a precision internal reference buffer. It supports both SPI and daisy-chain modes for easy interfacing with microcontrollers and DSPs. The device operates over a temperature range of -40°C to +125°C, ensuring reliable performance in harsh environments. The TSSOP package provides a compact footprint while maintaining excellent thermal performance.
Typical applications include data acquisition systems, industrial automation, medical imaging, and battery-powered instrumentation. The high accuracy and low power consumption make it ideal for portable and remote sensing applications. The Easy Drive features simplify the analog front-end design, reducing component count and board space.
When designing with the AD4008BRUZ, ensure that the reference voltage is stable and well-decoupled. The device requires a 1.8V analog supply and a separate digital supply for the interface. Proper layout techniques, such as short traces and ground planes, are essential to achieve the specified performance.
Alternativas drop-in para AD4008BRUZ — 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 AD4008BRUZ (mesmo formato e footprint) — diferindo em Input Type, Interface, Package, Resolution, Sampling Rate.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
AD4000BRUZ
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$8.1 / unidade
Ver ficha técnica →AD4001BRUZ
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$6.6818 / unidade
Ver ficha técnica →AD7091R-5BRUZ
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$3.1 / unidade
Ver ficha técnica →AD4008BRUZ Classificações máximas e características elétricas
| Resolução | 16-bit |
| Taxa de amostragem | 500 kSPS |
| Input Type | Pseudo-differential |
| Number of Channels | 1 |
| Interface | SPI, daisy-chain |
| Tensão de alimentação | 1.8 V |
| Power Consumption | 3.5 mW at 500 kSPS |
| SNR | 94 dB |
| THD | -110 dB |
| INL | ±0.5 LSB |
| DNL | ±0.5 LSB |
| Temperatura de operação | -40°C to +125°C |
| Encapsulamento | 16-lead TSSOP |
| Tipo de montagem | Surface Mount |
| Status RoHS | Compliant |
Configuração de pinos do AD4008BRUZ
| Pino 1 | VIN — Analog input |
| Pino 2 | GND — Ground |
| Pino 3 | VREF — Reference voltage input |
| Pino 4 | VDD — Power supply |
| Pino 5 | VIO — Digital interface supply |
| Pino 6 | SCK — Serial clock |
| Pino 7 | SDI — Serial data input |
| Pino 8 | SDO — Serial data output |
| Pino 9 | CNV — Convert input |
| Pino 10 | GND — Ground |
| Pino 11 | GND — Ground |
| Pino 12 | GND — Ground |
| Pino 13 | GND — Ground |
| Pino 14 | GND — Ground |
| Pino 15 | GND — Ground |
| Pino 16 | GND — Ground |
Aplicações típicas
AD4008BRUZ é adequado para 6 aplicaçãos: Data Acquisition Systems, Industrial Process Control, Medical Instrumentation, Battery-Powered Instrumentation, Test and Measurement Equipment, Automotive Electronics.
Data Acquisition Systems
The AD4008BRUZ is ideal for data acquisition systems requiring high accuracy and speed. Its 16-bit resolution and 500 kSPS sampling rate enable precise capture of analog signals. The low power consumption of 3.5 mW makes it suitable for portable and battery-powered data loggers. The Easy Drive features simplify the analog front-end, reducing component count and board space. The SPI interface allows easy integration with microcontrollers and DSPs.
Recomendado
Industrial Process Control
In industrial process control, the AD4008BRUZ provides accurate and reliable conversion of sensor signals. Its wide operating temperature range of -40°C to +125°C ensures performance in harsh environments. The pseudo-differential input rejects common-mode noise, improving measurement accuracy. The device's low power consumption reduces heat generation, enhancing system reliability. The SPI interface enables seamless integration with industrial controllers.
Recomendado
Medical Instrumentation
The AD4008BRUZ is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its high SNR of 94 dB ensures accurate signal acquisition, critical for medical measurements. The low power consumption extends battery life in portable devices. The compact TSSOP package saves board space, enabling miniaturized designs. The device's high accuracy and reliability meet the stringent requirements of medical applications.
Recomendado
Battery-Powered Instrumentation
The AD4008BRUZ is perfect for battery-powered instrumentation due to its low power consumption of 3.5 mW. The single 1.8V supply simplifies power management. The high-Z mode reduces input current, allowing direct sensor connection without external buffers, saving power and space. The device's high accuracy ensures reliable measurements in portable devices. The SPI interface supports low-power sleep modes for further energy savings.
Recomendado
Test and Measurement Equipment
The AD4008BRUZ is ideal for test and measurement equipment such as digital multimeters and oscilloscopes. Its 16-bit resolution and 500 kSPS sampling rate provide high-speed, accurate measurements. The low THD of -110 dB ensures signal fidelity. The device's small package and low power consumption enable compact, portable test instruments. The SPI interface allows easy integration with measurement processors.
Recomendado
Automotive Electronics
The AD4008BRUZ is suitable for automotive electronics such as battery management systems and motor control. Its wide temperature range and high reliability meet automotive standards. The pseudo-differential input rejects noise from automotive electrical systems. The low power consumption reduces heat in enclosed environments. The SPI interface supports daisy-chaining for multiple ADC channels, simplifying wiring.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para AD4008BRUZ — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | AD4008BRMZ | AD4008BCPZ-RL7 | AD4000BRUZ |
|---|---|---|---|---|
| Package | 16-lead TSSOP | 10-lead MSOP | 10-lead LFCSP-WD (3x3) | 16-lead TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16-bit | 16-bit | 16-bit | 16-bit |
| Sampling Rate | 500 kSPS | 500 kSPS | 500 kSPS | 400 kSPS |
| Input Type | Pseudo-differential | Pseudo-differential | Pseudo-differential | Pseudo-differential |
| Supply Voltage | 1.8 V | 1.8 V | 1.8 V | 1.8 V |
| Power Consumption | 3.5 mW | 3.5 mW | 3.5 mW | 3.5 mW |
| SNR | 94 dB | 94 dB | 94 dB | 94 dB |
Principais diferenciais
- Higher sampling rate than AD4000BRUZ (vs AD4000BRUZ)
- Lower power consumption than AD7690BRMZ (vs AD7690BRMZ)
- Easy Drive features (vs AD7091R-5BRUZ)
Notas de projeto
The AD4008BRUZ requires a clean 1.8V analog supply (VDD) and a separate digital supply (VIO) for the interface. Use low-dropout regulators with low output noise to avoid degrading the ADC's SNR. Decouple each supply pin with a 0.1uF ceramic capacitor placed as close as possible to the pin, and a 10uF bulk capacitor for low-frequency filtering.
For optimal performance, use a solid ground plane under the ADC and keep analog and digital grounds separate, connecting them at a single point. Route the analog input (VIN) away from digital traces to minimize coupling. Use short, direct traces for the SPI interface (SCK, SDI, SDO, CNV) and add series resistors (e.g., 33 ohm) to reduce ringing.
Ensure the reference voltage (VREF) is stable and well-decoupled. Use a precision reference like the ADR4520 and place a 10uF capacitor at the VREF pin. Avoid driving the analog input with a high-impedance source; use a buffer amplifier if necessary. The high-Z mode can help, but verify the source impedance is within the specified range.
Informações de conformidade
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
