AD574ATE/883B - 12-Bit SAR ADC, Military Grade | Analog Devices
N.º da peça: AD574ATE/883B ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $430.85 | $430,85 |
| 10 | $410 | $4.100,00 |
| 100 | $390 | $39.000,00 |
| 500 | $370 | $185.000,00 |
| 1.000 | $350 | $350.000,00 |
AD574ATE/883B Visão geral
An analog-to-digital converter (ADC) is an electronic component that converts continuous analog signals into discrete digital numbers. The AD574A is a successive-approximation ADC, which uses a binary search algorithm to determine the digital output, offering a good balance of speed and resolution. As a 12-bit ADC, it provides 4096 discrete levels, enabling high-resolution measurement of analog signals. This device belongs to the family of data acquisition components, which are essential in bridging the analog and digital domains in systems such as industrial process control, military avionics, and scientific instrumentation.
Key features of the AD574ATE/883B include 12-bit resolution, a single input channel, and a successive-approximation register (SAR) architecture. It operates from a bipolar power supply, and its parallel word access allows for fast data transfer to microprocessors. The device is available in a 28-LCC package, which is suitable for surface-mount assembly and provides good thermal and electrical performance. The military-grade processing ensures reliability in harsh environments, with a temperature grade of MILITARY, indicating operation from -55°C to +125°C.
Technically, the AD574A integrates a precision voltage reference and clock on-chip, eliminating the need for external components. The Bipolar/I2L process enables high-speed operation and low power consumption. The device includes a 3-state output buffer, allowing direct connection to a microprocessor bus without additional interface logic. The conversion time is typically 25 microseconds, providing a throughput of 40 kSPS. The device also features a status output to indicate when conversion is complete, simplifying system integration.
Typical applications include military avionics, industrial process control, medical instrumentation, and scientific data acquisition systems. The AD574ATE/883B is particularly suited for applications requiring high accuracy and reliability in extreme environments, such as aerospace and defense systems. Its parallel interface simplifies connection to microcontrollers and DSPs, making it a versatile choice for embedded systems.
When designing with this device, ensure proper decoupling of the power supply pins and a clean analog ground to achieve specified accuracy. The reference voltage is internally generated, but external filtering may be required for optimal performance. The device is not RoHS compliant due to its military-grade hermetic package, which is a consideration for applications with environmental compliance requirements.
Alternativas drop-in para AD574ATE/883B — 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 AD574ATE/883B (mesmo formato e footprint) — diferindo em RoHS Status, Supply Voltage.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
AD574AUD/883B
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
AD574ASE/883B
✅ Drop-In✓ Em estoque
$95 / unidade
Ver ficha técnica →AD574ATE/883B Classificações máximas e características elétricas
| Resolução | 12 bit |
| Number of Inputs | 1 |
| Input Type | Single Ended |
| Architecture | SAR |
| Data Interface | Parallel |
| Reference Type | Internal |
| Tensão de alimentação | 5V, ±12V/±15V |
| Temperatura de operação | -55°C to +125°C |
| Encapsulamento | 28-LCC (11.43x11.43) |
| Tipo de montagem | Surface Mount |
| Temperature Grade | Military |
| Terminal Form | No Lead |
| Number of Terminals | 28 |
| Package Code | QCCN |
| Package Shape | Square |
| Status RoHS | Non-compliant |
| MIL-STD-883C | Class B |
Configuração de pinos do AD574ATE/883B
| Pino 1 | VLOGIC — Logic supply voltage |
| Pino 2 | 12/8 — Data format select |
| Pino 3 | CS — Chip select |
| Pino 4 | R/C — Read/convert |
| Pino 5 | CE — Chip enable |
| Pino 6 | VEE — Negative supply |
| Pino 7 | REF OUT — Reference output |
| Pino 8 | AGND — Analog ground |
| Pino 9 | REF IN — Reference input |
| Pino 10 | VCC — Positive supply |
| Pino 11 | BIP OFF — Bipolar offset |
| Pino 12 | 10V IN — 10V analog input |
| Pino 13 | 20V IN — 20V analog input |
| Pino 14 | DGND — Digital ground |
| Pino 15 | DB0 — Data bit 0 (LSB) |
| Pino 16 | DB1 — Data bit 1 |
| Pino 17 | DB2 — Data bit 2 |
| Pino 18 | DB3 — Data bit 3 |
| Pino 19 | DB4 — Data bit 4 |
| Pino 20 | DB5 — Data bit 5 |
| Pino 21 | DB6 — Data bit 6 |
| Pino 22 | DB7 — Data bit 7 |
| Pino 23 | DB8 — Data bit 8 |
| Pino 24 | DB9 — Data bit 9 |
| Pino 25 | DB10 — Data bit 10 |
| Pino 26 | DB11 — Data bit 11 (MSB) |
| Pino 27 | STS — Status output |
| Pino 28 | NC — No connect |
Aplicações típicas
AD574ATE/883B é adequado para 6 aplicaçãos: Military Avionics, Industrial Process Control, Medical Instrumentation, Scientific Data Acquisition, Aerospace and Defense, Test and Measurement.
Military Avionics
The AD574ATE/883B is ideal for military avionics data acquisition systems due to its MIL-STD-883C Class B processing and wide operating temperature range of -55°C to +125°C. Its 12-bit resolution and parallel interface enable precise conversion of analog sensor signals for flight control and navigation systems. The ceramic LCC package ensures reliability under vibration and thermal stress, making it suitable for harsh aerospace environments.
Recomendado
Industrial Process Control
In industrial process control, the AD574ATE/883B provides high-accuracy conversion of analog signals from sensors such as temperature, pressure, and flow. Its 12-bit resolution and internal reference simplify design, while the parallel interface allows direct connection to microcontrollers. The device's military-grade temperature range ensures stable operation in factory environments with extreme temperatures. The LCC package is suitable for compact control modules.
Recomendado
Medical Instrumentation
The AD574ATE/883B is used in medical instrumentation such as patient monitoring systems and diagnostic equipment. Its high accuracy and reliability are critical for precise measurement of physiological signals. The device's parallel interface facilitates integration with digital signal processors for real-time analysis. The military temperature range ensures performance in various clinical environments, and the hermetic ceramic package provides protection against moisture and contaminants.
Recomendado
Scientific Data Acquisition
For scientific research, the AD574ATE/883B offers the precision and stability required for accurate data acquisition. Its 12-bit resolution and internal reference ensure consistent measurements, while the parallel interface allows high-speed data transfer to computers. The device's wide temperature range makes it suitable for field experiments in extreme conditions. The LCC package is ideal for compact data loggers and instrumentation.
Recomendado
Aerospace and Defense
The AD574ATE/883B is designed for aerospace and defense applications requiring high reliability and performance. Its MIL-STD-883C Class B processing ensures it meets stringent military standards. The device's 12-bit resolution and parallel interface are suitable for radar, communication, and guidance systems. The ceramic LCC package provides excellent thermal conductivity and mechanical strength, essential for withstanding extreme conditions.
Recomendado
Test and Measurement
In test and measurement equipment, the AD574ATE/883B provides accurate analog-to-digital conversion for oscilloscopes, multimeters, and data loggers. Its 12-bit resolution and parallel interface enable fast data acquisition and processing. The device's wide temperature range ensures stable performance in laboratory and field environments. The LCC package is suitable for high-density PCB designs, allowing compact instrument designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para AD574ATE/883B — comparação, orientação de projeto e informações de conformidade.
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Comparação com alternativas
| Parâmetro | Este produto | AD574AUD/883B | AD574ATD/883B | AD574ASE/883B | AD574ASD/883B | AD1674TD/883B | ADS774JU |
|---|---|---|---|---|---|---|---|
| Package | 28-LCC (11.43x11.43) | 28-LCC (11.43x11.43) | 28-CDIP | 28-LCC (11.43x11.43) | 28-CDIP | 28-CDIP | 28-SOIC |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Architecture | SAR | SAR | SAR | SAR | SAR | SAR | SAR |
| Input Channels | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Data Interface | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel | Parallel |
| Operating Temperature | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | 0°C to +70°C |
| MIL-STD-883C | Class B | Class B | Class B | Class B | Class B | Class B | No |
Principais diferenciais
- Military-grade processing (vs ADS774JU)
- Ceramic LCC package (vs AD574ATD/883B)
- Internal reference and clock (vs ADS774JU)
Notas de projeto
The AD574ATE/883B requires multiple supply voltages: +5V for logic, and ±12V or ±15V for the analog section. Ensure that these supplies are well-regulated and decoupled with 0.1uF ceramic capacitors close to the VCC, VEE, and VLOGIC pins. A 10uF tantalum capacitor on each supply is recommended for low-frequency noise filtering.
For optimal performance, use a ground plane and separate analog and digital ground areas, connecting them at a single point near the ADC. Keep analog input traces short and shielded from digital signals to minimize noise coupling. The LCC package has exposed pads; ensure proper soldering to the PCB for mechanical stability and thermal dissipation.
Do not exceed the absolute maximum ratings for supply voltages, as this can damage the device. Ensure that the analog input voltage does not exceed the specified range (0-10V or 0-20V depending on configuration). The internal reference is trimmed at the factory; avoid loading the REF OUT pin with low-impedance circuits, as this can degrade accuracy.
Informações de conformidade
Military-grade component, not RoHS compliant due to hermetic ceramic package.
