AD7582TQ/883B - 12-Bit 4-Ch SAR ADC | Analog Devices
料号： AD7582TQ/883B ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $45.32 | $45.32 |
| 10 | $41.87 | $418.70 |
| 100 | $36.54 | $3,654.00 |
| 500 | $32.1 | $16,050.00 |
| 1,000 | $28.75 | $28,750.00 |
AD7582TQ/883B 概述
An analog-to-digital converter (ADC) is an electronic component that converts continuous analog signals into discrete digital numbers. The AD7582TQ/883B uses the successive approximation register (SAR) architecture, which balances speed and resolution for medium-speed data acquisition. SAR ADCs are widely used in industrial, aerospace, and instrumentation systems where moderate sampling rates and high accuracy are required. The AD7582TQ/883B is part of the data acquisition signal chain, converting sensor outputs, voltage levels, or other analog signals into digital data for processing by microcontrollers or digital signal processors.
Key features of the AD7582TQ/883B include four multiplexed input channels, a 12-bit resolution, and a maximum conversion time of 100 µs. The device includes an auto-zero cycle at the start of each conversion, which reduces offset errors and ensures low system noise. The parallel digital interface simplifies connection to microprocessors and DSPs. The MIL-STD-883 Class B screening ensures high reliability in harsh environments, with a wide operating temperature range of -55°C to +125°C.
The AD7582TQ/883B is designed for medium-speed data acquisition systems that require multiple analog input channels. The four input channels can be configured for single-ended or differential inputs, providing flexibility in signal conditioning. The device requires only a few external passive components and a voltage reference, as noted in the Analog Devices product page. The auto-zero feature minimizes the need for external calibration, simplifying system design.
Typical applications include military avionics, industrial process control, test and measurement equipment, and aerospace telemetry. The wide temperature range and MIL-STD-883 screening make it ideal for defense and aerospace systems where reliability is critical. The parallel interface allows direct connection to legacy 8-bit or 16-bit microprocessors, facilitating integration into existing designs.
When designing with the AD7582TQ/883B, ensure that the analog input voltage does not exceed the supply rails and that adequate decoupling is provided on the power supply pins. The voltage reference should be stable and low-noise to achieve full 12-bit accuracy. The conversion time of 100 µs limits the maximum sampling rate to 10 kSPS, which should be considered for high-speed applications.
直接替换替代料： AD7582TQ/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：
AD7582BQ
✅ 直接替换📋 参考替代料（不在目录中）
AD7582TQ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD7582TQ/883B 最大额定值与电气特性
| 分辨率 | 12 Bit |
| Number of Input Channels | 4 |
| 采样率 | 10 kSPS |
| Conversion Time | 100 µs (max) |
| Input Type | Single Ended |
| Data Interface | Parallel |
| Architecture | SAR |
| 电源电压 | ±5V, +15V |
| 工作温度范围 | -55°C to +125°C |
| 封装 | 28-CDIP |
| 安装类型 | Through Hole |
| Screening Level | MIL-STD-883 Class B |
| Reference Type | External |
| Number of A/D Converters | 1 |
| RoHS 状态 | Non-Compliant |
AD7582TQ/883B 引脚配置
| 引脚 1 | VDD — Positive supply voltage (+15V) |
| 引脚 2 | VSS — Negative supply voltage (-5V) |
| 引脚 3 | AGND — Analog ground |
| 引脚 4 | VREF — Voltage reference input |
| 引脚 5 | AIN0 — Analog input channel 0 |
| 引脚 6 | AIN1 — Analog input channel 1 |
| 引脚 7 | AIN2 — Analog input channel 2 |
| 引脚 8 | AIN3 — Analog input channel 3 |
| 引脚 9 | DGND — Digital ground |
| 引脚 10 | DB0 — Data bit 0 (LSB) |
| 引脚 11 | DB1 — Data bit 1 |
| 引脚 12 | DB2 — Data bit 2 |
| 引脚 13 | DB3 — Data bit 3 |
| 引脚 14 | DB4 — Data bit 4 |
| 引脚 15 | DB5 — Data bit 5 |
| 引脚 16 | DB6 — Data bit 6 |
| 引脚 17 | DB7 — Data bit 7 |
| 引脚 18 | DB8 — Data bit 8 |
| 引脚 19 | DB9 — Data bit 9 |
| 引脚 20 | DB10 — Data bit 10 |
| 引脚 21 | DB11 — Data bit 11 (MSB) |
| 引脚 22 | CS — Chip select (active low) |
| 引脚 23 | RD — Read strobe (active low) |
| 引脚 24 | BUSY — Busy output (high during conversion) |
| 引脚 25 | CONVST — Conversion start input |
| 引脚 26 | A0 — Channel select bit 0 |
| 引脚 27 | A1 — Channel select bit 1 |
| 引脚 28 | VDD — Positive supply voltage (+15V) |
典型应用
AD7582TQ/883B 适用于 6 应用s: Military Avionics, Industrial Process Control, Test and Measurement Equipment, Aerospace Telemetry, Medical Monitoring, Data Acquisition Systems.
Military Avionics
The AD7582TQ/883B is ideal for military avionics data acquisition systems due to its MIL-STD-883 Class B screening and wide operating temperature range of -55°C to +125°C. Its 12-bit resolution and 10 kSPS sampling rate are sufficient for monitoring flight control parameters, engine sensors, and navigation data. The four input channels allow multiplexing of multiple analog signals, reducing component count. The parallel interface simplifies connection to mission computers. The ceramic CDIP package ensures reliability in harsh vibration and thermal environments. Designers can use the auto-zero feature to maintain accuracy over temperature without external calibration.
推荐
Industrial Process Control
In industrial process control, the AD7582TQ/883B provides reliable 12-bit conversion of sensor signals such as temperature, pressure, and flow. Its 100 µs conversion time allows monitoring of multiple channels at 10 kSPS, suitable for real-time control loops. The device operates from ±5V and +15V supplies, compatible with industrial signal conditioning circuits. The parallel interface enables direct connection to PLCs and microcontrollers. The wide temperature range ensures operation in factory environments. The auto-zero feature reduces offset drift, improving long-term accuracy. The through-hole CDIP package is robust for industrial PCBs. Designers should ensure proper grounding and decoupling for optimal performance.
推荐
Test and Measurement Equipment
The AD7582TQ/883B is well-suited for test and measurement instruments requiring medium-speed, multi-channel data acquisition. Its 12-bit resolution and 10 kSPS sampling rate are adequate for digitizing waveforms in oscilloscopes, data loggers, and spectrum analyzers. The four input channels allow simultaneous monitoring of multiple test points. The parallel interface facilitates high-speed data transfer to DSPs or FPGAs. The device's auto-zero function ensures accurate measurements over time. The MIL-STD-883 screening provides high reliability for benchtop and portable instruments. The wide temperature range supports operation in various environments. Designers can use the external reference to achieve precise full-scale calibration.
推荐
Aerospace Telemetry
The AD7582TQ/883B is designed for aerospace telemetry systems that demand high reliability and wide temperature operation. Its MIL-STD-883 Class B screening ensures it can withstand the rigors of space and high-altitude environments. The 12-bit resolution and 10 kSPS sampling rate are suitable for transmitting sensor data from satellites, launch vehicles, and aircraft. The four input channels allow multiplexing of various telemetry signals. The parallel interface enables direct connection to telemetry encoders. The ceramic package provides hermetic sealing, protecting against moisture and contaminants. The auto-zero feature maintains accuracy over the -55°C to +125°C range. Designers should consider the power supply requirements and ensure stable references for reliable data.
推荐
Medical Monitoring
The AD7582TQ/883B can be used in medical monitoring equipment such as patient vital signs monitors and diagnostic devices. Its 12-bit resolution provides sufficient accuracy for physiological signals like ECG, EEG, and temperature. The 10 kSPS sampling rate is adequate for most biomedical signals. The four input channels allow monitoring of multiple parameters simultaneously. The device operates from ±5V and +15V supplies, compatible with medical-grade power supplies. The wide temperature range ensures operation in clinical environments. The MIL-STD-883 screening provides high reliability for life-critical applications. The parallel interface simplifies integration with microcontrollers. Designers should ensure proper isolation and safety standards are met.
推荐
Data Acquisition Systems
The AD7582TQ/883B is a fundamental building block for general-purpose data acquisition systems. Its 12-bit resolution and 10 kSPS sampling rate are suitable for logging analog signals from various sensors. The four input channels allow multiplexing of multiple signals, reducing system cost. The parallel interface enables easy connection to microprocessors and DSPs. The device's auto-zero feature minimizes offset errors, improving measurement accuracy. The wide temperature range and MIL-STD-883 screening make it suitable for rugged environments. The through-hole CDIP package is easy to handle in prototyping and production. Designers can use the external reference to set the full-scale range. The device requires minimal external components, simplifying board design.
推荐
推荐产品汇总
工程参考数据： AD7582TQ/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 | AD7582BQ | AD7582KN | AD7582KNZ | MX7582KN+ | AD7582TQ |
|---|---|---|---|---|---|---|
| Package | 28-CDIP | 28-CDIP | 28-PDIP | 28-PDIP | 28-PDIP | 28-CDIP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Maxim Integrated | Analog Devices |
| Resolution | 12 Bit | 12 Bit | 12 Bit | 12 Bit | 12 Bit | 12 Bit |
| Sampling Rate | 10 kSPS | 10 kSPS | 10 kSPS | 10 kSPS | 10 kSPS | 10 kSPS |
| Supply Voltage | ±5V, +15V | ±5V, +15V | ±5V, +15V | ±5V, +15V | ±5V, +15V | ±5V, +15V |
| Operating Temperature Range | -55°C to +125°C | -55°C to +125°C | 0°C to +70°C | 0°C to +70°C | 0°C to +70°C | -55°C to +125°C |
| Screening Level | MIL-STD-883 Class B | None | None | None | None | None |
| RoHS Status | Non-Compliant | Non-Compliant | Non-Compliant | Compliant | Non-Compliant | Non-Compliant |
关键差异点
- MIL-STD-883 Class B screening （对比 AD7582BQ)
- Wide operating temperature range （对比 AD7582KN)
- Ceramic package for hermeticity （对比 AD7582KN)
设计说明
The AD7582TQ/883B requires ±5V and +15V supplies. Use low-impedance decoupling capacitors (e.g., 0.1 µF ceramic and 10 µF tantalum) close to each supply pin. The analog and digital supplies should be separated and connected at a single point to minimize noise coupling. Ensure the +15V supply is stable and well-regulated, as it powers the analog circuitry and affects conversion accuracy.
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. Place the voltage reference and decoupling capacitors close to the VREF pin. Avoid routing digital lines under the analog input pins to reduce crosstalk.
Do not exceed the absolute maximum ratings for supply voltages or input voltages. The analog input voltage should not go below -0.3V or above VDD+0.3V. Ensure the conversion start signal (CONVST) is clean and free of noise to avoid false triggers. The external voltage reference must be stable and low-noise; a precision reference such as the AD780 is recommended for full 12-bit accuracy.
合规信息
The AD7582TQ/883B is a MIL-STD-883 Class B device and is not RoHS compliant due to lead-based solder in the ceramic package. REACH and conflict minerals status not specified in available data.