AD5214TD/883B - 12-Bit SAR ADC, Military Grade | Analog Devices
料号： AD5214TD/883B ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $241.62 | $241.62 |
| 10 | $230 | $2,300.00 |
| 100 | $218 | $21,800.00 |
| 500 | $205 | $102,500.00 |
| 1,000 | $195 | $195,000.00 |
AD5214TD/883B 概述
An analog-to-digital converter (ADC) is a critical component in electronic systems that converts continuous analog signals into discrete digital values for processing by microcontrollers, DSPs, or FPGAs. The successive approximation register (SAR) architecture used in the AD5214TD/883B is favored for its high speed and low power consumption compared to other ADC types like delta-sigma or pipeline converters. SAR ADCs are widely used in industrial control, medical instrumentation, and military avionics where accurate and fast conversion is essential.
Key features of the AD5214TD/883B include 12-bit resolution with 0.0122% integral linearity error (EL), ensuring high accuracy for precision measurements. The device supports both serial and parallel output interfaces, providing flexibility in system design. The hybrid technology construction and military temperature grade make it suitable for mission-critical applications where reliability is paramount. The CDIP24 package offers excellent thermal dissipation and protection against environmental stress.
Technically, the AD5214TD/883B employs a charge redistribution SAR architecture with an internal track-and-hold circuit, enabling accurate sampling of input signals up to the Nyquist frequency. The conversion process is initiated by a start command, and the 12-bit result is available on parallel output lines or shifted out serially. The device operates from a single +5V supply, simplifying power design. The maximum supply current of 68 mA includes the reference and internal clock, making it a self-contained conversion solution.
Typical applications include military avionics data acquisition, radar signal processing, industrial process control, and high-reliability test equipment. The wide temperature range and hermetic ceramic package ensure stable performance in extreme environments. The parallel interface allows direct connection to microprocessors, while the serial mode reduces pin count for space-constrained designs.
When designing with the AD5214TD/883B, ensure that the analog input voltage does not exceed the supply rails and that adequate decoupling capacitors are placed near the power pins. The reference input should be bypassed with a low-ESR capacitor to maintain conversion accuracy. For best performance, use a low-impedance source to drive the analog input and minimize noise on the digital lines.
直接替换替代料： AD5214TD/883B ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
AD5214TD
✅ 直接替换📋 参考替代料（不在目录中）
AD5215TD/883B
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD7892-1
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD7892-2
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD7893-10
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD5214TD/883B 最大额定值与电气特性
| 分辨率 | 12 bits |
| Conversion Time | 13 us |
| Integral Linearity Error (EL) | 0.0122% |
| Number of Channels | 1 |
| 接口类型 | Serial, Parallel |
| Input Type | Single-ended |
| Data Interface | Parallel, Serial |
| Architecture | SAR |
| 电源电压 | 5V |
| Max Supply Current | 68 mA |
| 工作温度范围 | -55°C to +125°C |
| Package Type | CDIP-24 |
| 安装类型 | Through-Hole |
| Terminal Form | Through-Hole |
| Number of Terminals | 24 |
| Package Code | DIP |
| Technology | Hybrid |
| Temperature Grade | Military |
| Output Format | Binary |
| RoHS 状态 | unknown |
AD5214TD/883B 引脚配置
| 引脚 1 | VDD — Positive supply voltage (5V) |
| 引脚 2 | VREF — Reference voltage input |
| 引脚 3 | AGND — Analog ground |
| 引脚 4 | AIN — Analog input |
| 引脚 5 | DGND — Digital ground |
| 引脚 6 | CS — Chip select (active low) |
| 引脚 7 | RD — Read strobe (active low) |
| 引脚 8 | BUSY — Busy output (high during conversion) |
| 引脚 9 | DB0 — Data bit 0 (LSB) |
| 引脚 10 | DB1 — Data bit 1 |
| 引脚 11 | DB2 — Data bit 2 |
| 引脚 12 | DB3 — Data bit 3 |
| 引脚 13 | DB4 — Data bit 4 |
| 引脚 14 | DB5 — Data bit 5 |
| 引脚 15 | DB6 — Data bit 6 |
| 引脚 16 | DB7 — Data bit 7 |
| 引脚 17 | DB8 — Data bit 8 |
| 引脚 18 | DB9 — Data bit 9 |
| 引脚 19 | DB10 — Data bit 10 |
| 引脚 20 | DB11 — Data bit 11 (MSB) |
| 引脚 21 | SCLK — Serial clock input |
| 引脚 22 | SDATA — Serial data output |
| 引脚 23 | MODE — Interface mode select (parallel/serial) |
| 引脚 24 | NC — No connect |
典型应用
AD5214TD/883B 适用于 6 应用s: Military Avionics Data Acquisition, Industrial Process Control, Radar Signal Processing, Test and Measurement Equipment, Aerospace Telemetry, Medical Instrumentation.
Military Avionics Data Acquisition
The AD5214TD/883B is ideal for military avionics data acquisition systems due to its military temperature range (-55°C to +125°C) and high reliability. Its 12-bit resolution and 13 µs conversion time enable accurate sampling of sensor signals in harsh environments. The parallel interface allows direct connection to mission computers, while the serial mode reduces wiring in space-constrained platforms. The hermetic CDIP-24 package protects against moisture and contaminants, ensuring long-term performance in aerospace applications.
推荐
Industrial Process Control
In industrial process control, the AD5214TD/883B provides precise 12-bit conversion of analog signals from temperature, pressure, and flow sensors. Its wide operating temperature range ensures reliable operation in factory environments. The 13 µs conversion time allows real-time monitoring and control loops. The parallel interface simplifies integration with PLCs and microcontrollers. The device's low power consumption (68 mA max) reduces heat generation in control cabinets, and its robust ceramic package withstands vibration and thermal cycling.
推荐
Radar Signal Processing
The AD5214TD/883B is suitable for radar signal processing applications where high-speed, accurate analog-to-digital conversion is required. Its 13 µs conversion time enables sampling of intermediate frequency signals, and the 12-bit resolution provides adequate dynamic range for target detection. The military temperature range ensures operation in extreme climates. The parallel output allows high-speed data transfer to DSPs or FPGAs. The device's hybrid technology offers proven reliability in defense systems.
推荐
Test and Measurement Equipment
The AD5214TD/883B is used in test and measurement equipment such as digital multimeters, data loggers, and spectrum analyzers. Its 12-bit resolution and 13 µs conversion time provide accurate and fast measurements. The serial interface allows easy connection to microcontrollers for portable instruments. The wide temperature range makes it suitable for field testing in various environments. The device's low power consumption extends battery life in handheld devices, and the ceramic package ensures durability.
推荐
Aerospace Telemetry
In aerospace telemetry, the AD5214TD/883B converts analog sensor data into digital format for transmission to ground stations. Its military temperature range and hermetic package ensure reliable operation in space and high-altitude environments. The 12-bit resolution provides sufficient accuracy for monitoring vital parameters. The 13 µs conversion time allows real-time data streaming. The parallel interface enables efficient data packing, and the device's low power consumption is critical for satellite and UAV applications.
推荐
Medical Instrumentation
The AD5214TD/883B is used in medical instrumentation such as patient monitoring systems and diagnostic equipment. Its 12-bit resolution and 13 µs conversion time enable accurate and fast acquisition of physiological signals. The wide temperature range allows operation in various clinical environments. The serial interface simplifies connection to embedded processors. The device's low power consumption is beneficial for portable medical devices, and its high reliability ensures patient safety.
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推荐产品汇总
工程参考数据： AD5214TD/883B ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | AD5214TD | AD5215TD/883B | AD7892-1 | AD7892-2 |
|---|---|---|---|---|---|
| Package | CDIP-24 | CDIP-24 | CDIP-24 | CDIP-24 | CDIP-24 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits |
| Operating Temperature Range | -55°C to +125°C | -55°C to +125°C | -55°C to +125°C | -40°C to +85°C | -40°C to +85°C |
| Interface | Serial, Parallel | Serial, Parallel | Serial, Parallel | Parallel | Parallel |
| Military Grade | Yes | No | Yes | No | No |
关键差异点
- Military temperature range （对比 AD7892-1)
- Dual serial and parallel interface （对比 AD7892-1)
- MIL-STD-883 compliance （对比 AD5214TD)
设计说明
The AD5214TD/883B requires a stable 5V supply. Use a low-dropout regulator with low output noise, such as the TPS7A4701, to power the ADC. Place a 10uF tantalum capacitor and a 0.1uF ceramic capacitor close to the VDD pin to filter high-frequency noise. Ensure the analog and digital grounds are connected at a single point to avoid ground loops.
For optimal performance, use a 4-layer PCB with dedicated ground and power planes. Keep the analog input trace short and shielded from digital signals. Place the reference decoupling capacitor (10uF) as close to the VREF pin as possible. Avoid routing digital lines under the ADC to minimize coupling noise.
Do not exceed the absolute maximum ratings for supply voltage and input voltage. Ensure the analog input is within the specified common-mode range. The reference voltage must be stable and noise-free; use a precision reference like the ADR421. When using the serial interface, ensure the SCLK frequency does not exceed the maximum specified to avoid data corruption.
合规信息
Compliance data not provided in verified sources. This is a military-grade component, likely exempt from RoHS due to defense applications.
