AD7980ARMZRL7 - 16-Bit 1 MSPS PulSAR ADC | Analog Devices
料号： AD7980ARMZRL7 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $15.8182 | $15.82 |
| 10 | $11.4242 | $114.24 |
| 100 | $10.1061 | $1,010.61 |
| 500 | $9.6667 | $4,833.35 |
| 1,000 | $9.2273 | $9,227.30 |
AD7980ARMZRL7 概述
An ADC (analog-to-digital converter) is an electronic component that converts a continuous analog voltage into a discrete digital representation. The AD7980 is a SAR-type ADC, which uses a binary search algorithm to determine the digital output, offering a good balance of speed, resolution, and power consumption. SAR ADCs are widely used in data acquisition systems, industrial process control, and medical instrumentation where high accuracy and low latency are required.
Key features of the AD7980 include a 1 MSPS throughput rate, 16-bit resolution with a maximum integral nonlinearity (INL) of ±2.5 LSB, and a signal-to-noise ratio (SNR) of 91.5 dB at 1 kHz input frequency. The device operates from a 2.5 V supply and consumes only 7 mW at 1 MSPS, with power scaling linearly with throughput. The reference voltage is applied externally and can be set independently of the supply voltage, providing flexibility in system design.
The AD7980 uses a charge redistribution SAR architecture with a precision comparator and an internal capacitive DAC. It features a pseudo-differential input that rejects common-mode noise, and the SPI interface supports daisy-chaining multiple ADCs on a single 3-wire bus using the SDI input. The device also provides an optional busy indicator for synchronization.
Typical applications include battery-powered instrumentation, portable medical devices, data acquisition systems, and industrial process control. The low power consumption and small package make it ideal for space-constrained designs. The external reference allows the input range to be optimized for the specific sensor or signal conditioning circuit.
When designing with the AD7980, ensure that the reference voltage is stable and well-decoupled, as it directly affects conversion accuracy. The analog input should be driven by a low-impedance source to avoid sampling errors, and the SPI bus should be kept short to minimize noise.
直接替换替代料： AD7980ARMZRL7 ——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：
AD7980BRMZRL7
✓ 有现货
$10.75 / 个
查看数据手册 →AD7980BRMZ
✓ 有现货
$16.8636 / 个
查看数据手册 →AD7980BCPZ-RL7
✓ 有现货
$18 / 个
查看数据手册 →AD7982BRMZ
📋 参考替代料（不在目录中）
AD7983BRMZ
📋 参考替代料（不在目录中）
AD7980ARMZRL7 最大额定值与电气特性
| 分辨率 | 16 Bit |
| 采样率 | 1 MSPS |
| Number of Inputs | 1 |
| Input Type | Pseudo-Differential |
| Architecture | SAR |
| 电源电压 | 2.5 V |
| Power Consumption | 7 mW at 1 MSPS |
| INL (Max) | ±2.5 LSB |
| SNR | 91.5 dB at 1 kHz |
| 接口 | SPI |
| 封装 | 10-MSOP |
| 工作温度范围 | -40°C to +125°C |
| 基准电压 | External |
| RoHS | Compliant |
| Lead-Free | Yes |
AD7980ARMZRL7 引脚配置
| 引脚 1 | IN+ — Positive analog input |
| 引脚 2 | IN- — Negative analog input |
| 引脚 3 | GND — Ground |
| 引脚 4 | VDD — Power supply (2.5V) |
| 引脚 5 | REF — Reference voltage input |
| 引脚 6 | SDI — Serial data input for daisy-chain |
| 引脚 7 | SCK — Serial clock input |
| 引脚 8 | SDO — Serial data output |
| 引脚 9 | CNV — Convert input |
| 引脚 10 | BUSY — Busy indicator output |
典型应用
AD7980ARMZRL7 适用于 6 应用s: Battery-Powered Instrumentation, Portable Medical Devices, Data Acquisition Systems, Industrial Process Control, Medical Instrumentation, Test and Measurement Equipment.
Battery-Powered Instrumentation
The AD7980ARMZRL7's low power consumption of 7 mW at 1 MSPS and power scaling with throughput make it ideal for battery-powered instruments. Its 16-bit resolution and 1 MSPS sampling rate enable accurate, high-speed measurements while extending battery life. The small 10-MSOP package fits compact handheld devices, and the SPI interface simplifies integration with low-power microcontrollers.
推荐
Portable Medical Devices
In portable medical devices such as patient monitors and diagnostic equipment, the AD7980ARMZRL7 provides high accuracy with 16-bit resolution and 91.5 dB SNR. Its low power consumption is critical for battery operation, and the pseudo-differential input rejects noise from the clinical environment. The SPI interface allows easy connection to medical-grade microcontrollers, and the wide temperature range ensures reliable operation.
推荐
Data Acquisition Systems
The AD7980ARMZRL7 is well-suited for data acquisition systems requiring high speed and precision. With 1 MSPS sampling and 16-bit resolution, it captures fast-changing signals accurately. The external reference allows optimization of the input range for various sensors, and the SPI interface supports daisy-chaining multiple ADCs for multi-channel systems. Its low power consumption reduces thermal issues in dense PCB layouts.
推荐
Industrial Process Control
In industrial process control, the AD7980ARMZRL7 offers reliable performance with its wide operating temperature range and high SNR. The pseudo-differential input rejects common-mode noise from industrial environments, ensuring accurate measurements. The 1 MSPS sampling rate enables real-time monitoring, and the low power consumption reduces heat generation in control cabinets. The SPI interface integrates easily with industrial PLCs and microcontrollers.
推荐
Medical Instrumentation
The AD7980ARMZRL7 is used in medical instrumentation such as ECG and EEG machines, where high resolution and low noise are essential. Its 16-bit resolution and 91.5 dB SNR ensure accurate signal capture, while the low power consumption is suitable for portable devices. The small package allows for compact designs, and the SPI interface simplifies data transfer to processing units. The device's reliability over -40°C to +125°C makes it suitable for clinical environments.
推荐
Test and Measurement Equipment
For test and measurement equipment, the AD7980ARMZRL7 provides the speed and accuracy needed for precise measurements. Its 1 MSPS sampling rate and 16-bit resolution allow detailed analysis of waveforms, while the external reference enables calibration flexibility. The SPI interface supports high-speed data transfer to FPGAs or DSPs, and the low power consumption reduces heat in benchtop instruments. The device's small footprint is beneficial for multi-channel designs.
推荐
推荐产品汇总
工程参考数据： AD7980ARMZRL7 ——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 | AD7980BRMZRL7 | AD7980BRMZ | AD7980BCPZ-RL7 | AD7982BRMZ | AD7983BRMZ |
|---|---|---|---|---|---|---|
| Package | 10-MSOP | 10-MSOP | 10-MSOP | 10-LFCSP | 10-MSOP | 10-MSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16-bit | 16-bit | 16-bit | 16-bit | 18-bit | 16-bit |
| Sampling Rate | 1 MSPS | 1 MSPS | 1 MSPS | 1 MSPS | 1 MSPS | 500 kSPS |
| Power Consumption | 7 mW | 7 mW | 7 mW | 7 mW | 7 mW | 3.5 mW |
| INL (Max) | ±2.5 LSB | ±2.5 LSB | ±2.5 LSB | ±2.5 LSB | ±2 LSB | ±2.5 LSB |
| SNR | 91.5 dB | 91.5 dB | 91.5 dB | 91.5 dB | 92 dB | 91.5 dB |
| Interface | SPI | SPI | SPI | SPI | SPI | SPI |
关键差异点
- Pin-for-pin compatible with 18-bit AD7982 （对比 AD7982BRMZ)
- Low power consumption of 7 mW at 1 MSPS （对比 AD7983BRMZ)
- Available in both MSOP and LFCSP packages （对比 AD7980BCPZ-RL7)
设计说明
The AD7980ARMZRL7 operates from a single 2.5V supply. Ensure that the supply is clean and well-decoupled with a 0.1uF ceramic capacitor placed close to the VDD pin. The reference voltage (REF) should also be decoupled with a 10uF capacitor to maintain stability and accuracy.
For optimal performance, place the AD7980ARMZRL7 close to the signal source to minimize trace length and reduce noise pickup. Use a solid ground plane and avoid routing digital signals near the analog input. The SPI lines should be kept short and shielded if necessary to prevent crosstalk.
The analog input must be driven by a low-impedance source to avoid sampling errors. Use an op-amp buffer if the source impedance is high. Also, ensure that the reference voltage is stable and within the specified range, as it directly affects conversion accuracy. Avoid exceeding the absolute maximum ratings on any pin.
合规信息
RoHS compliant and lead-free per distributor data. REACH and conflict minerals status not specified in provided data.
