AD4696BCPZ - 16-Bit 16-Channel SAR ADC | Analog Devices
料号： AD4696BCPZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $18.5 | $18.50 |
| 10 | $16.8 | $168.00 |
| 100 | $14.2 | $1,420.00 |
| 500 | $12.9 | $6,450.00 |
| 1,000 | $11.75 | $11,750.00 |
AD4696BCPZ 概述
A SAR ADC is a type of analog-to-digital converter that uses a binary search algorithm to convert an analog input into a digital output. It is known for its high speed, low power, and excellent accuracy, making it ideal for applications such as industrial process control, data acquisition systems, and medical instrumentation. The AD4696 belongs to the family of SAR ADCs, which are a subset of data converters, which in turn are part of the broader category of mixed-signal integrated circuits.
Key features of the AD4696BCPZ include 16 single-ended or 8 differential input channels, a maximum sampling rate of 1 MSPS, and an SPI-compatible serial interface. The device offers a signal-to-noise ratio (SNR) of 95.5 dB and a total harmonic distortion (THD) of -110 dB, ensuring high-fidelity conversion. It also includes an on-chip 2.5V reference buffer, a temperature sensor, and a customizable channel sequencer, reducing the burden on the host processor.
The AD4696 uses a charge redistribution architecture with a capacitive DAC, achieving excellent linearity and low power consumption. The Easy Drive feature reduces the input current requirement, allowing direct connection to high-impedance sources without external buffers. The device also supports oversampling and decimation to improve noise performance at lower effective sampling rates.
Typical applications include industrial automation, battery-powered instrumentation, and medical monitoring systems. Its high channel count and Easy Drive capability make it particularly suitable for multi-channel data acquisition where PCB area and power are constrained.
When designing with the AD4696BCPZ, ensure proper decoupling of the analog and digital supplies and place the reference decoupling capacitor close to the REF pin. The SPI interface should be isolated from noisy digital traces to maintain conversion accuracy.
直接替换替代料： AD4696BCPZ ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： AD4696BCPZ （相同外形与封装尺寸） ——差异在于 Sampling Rate, Input Type, Reference Type, Number of Channels, Package.
快速对比工具——选择替代料号进行并排对比：
AD4695BCPZ
✅ 直接替换✓ 有现货
$18.5 / 个
查看数据手册 →AD4696BCPZ-RL7
✅ 直接替换📋 参考替代料（不在目录中）
AD4696BCPZ-RL
✅ 直接替换📋 参考替代料（不在目录中）
AD4696BCPZ-REEL
✅ 直接替换📋 参考替代料（不在目录中）
AD4696BCPZ-REEL7
✅ 直接替换📋 参考替代料（不在目录中）
AD4696BCPZ-REEL
✅ 直接替换📋 参考替代料（不在目录中）
AD4696BCPZ-REEL7
✅ 直接替换📋 参考替代料（不在目录中）
AD4696BCPZ-REEL
✅ 直接替换📋 参考替代料（不在目录中）
AD4696BCPZ 最大额定值与电气特性
| 分辨率 | 16 Bit |
| Number of Channels | 16 Input |
| 采样率 | 1 MSPS |
| Input Type | Single-Ended / Differential |
| 接口 | SPI |
| Architecture | SAR |
| SNR | 95.5 dB |
| THD | -110 dB |
| Analog Supply Voltage | 2.5 V to 5.5 V |
| Digital Supply Voltage | 1.8 V to 5.5 V |
| 封装 | 32-LFCSP-WQ (5x5 mm) |
| 工作温度 | -40C to +125C |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Reference Type | Internal / External |
AD4696BCPZ 引脚配置
| 引脚 1 | AVDD — Analog power supply |
| 引脚 2 | AIN0 — Analog input channel 0 |
| 引脚 3 | AIN1 — Analog input channel 1 |
| 引脚 4 | AIN2 — Analog input channel 2 |
| 引脚 5 | AIN3 — Analog input channel 3 |
| 引脚 6 | AIN4 — Analog input channel 4 |
| 引脚 7 | AIN5 — Analog input channel 5 |
| 引脚 8 | AIN6 — Analog input channel 6 |
| 引脚 9 | AIN7 — Analog input channel 7 |
| 引脚 10 | AIN8 — Analog input channel 8 |
| 引脚 11 | AIN9 — Analog input channel 9 |
| 引脚 12 | AIN10 — Analog input channel 10 |
| 引脚 13 | AIN11 — Analog input channel 11 |
| 引脚 14 | AIN12 — Analog input channel 12 |
| 引脚 15 | AIN13 — Analog input channel 13 |
| 引脚 16 | AIN14 — Analog input channel 14 |
| 引脚 17 | AIN15 — Analog input channel 15 |
| 引脚 18 | GND — Ground |
| 引脚 19 | VIO — Digital interface supply |
| 引脚 20 | SCLK — Serial clock input |
| 引脚 21 | SDI — Serial data input |
| 引脚 22 | SDO — Serial data output |
| 引脚 23 | CS — Chip select (active low) |
| 引脚 24 | CNV — Convert input |
| 引脚 25 | REF — Reference voltage input/output |
| 引脚 26 | REFGND — Reference ground |
| 引脚 27 | TEMP — Temperature sensor output |
| 引脚 28 | GPIO0 — General-purpose input/output 0 |
| 引脚 29 | GPIO1 — General-purpose input/output 1 |
| 引脚 30 | GPIO2 — General-purpose input/output 2 |
| 引脚 31 | GPIO3 — General-purpose input/output 3 |
| 引脚 32 | EP — Exposed pad (thermal and ground) |
典型应用
AD4696BCPZ 适用于 6 应用s: Industrial Process Control, Battery-Powered Instrumentation, Medical Monitoring Systems, Data Acquisition Systems, Automotive Test and Measurement, IoT and Smart Sensors.
Industrial Process Control
The AD4696BCPZ's 16-channel input and 1 MSPS sampling rate enable precise monitoring of multiple sensors in industrial automation. Its Easy Drive technology reduces the need for external buffers, simplifying the signal chain and reducing board space. The device's wide operating temperature range (-40C to +125C) ensures reliable operation in harsh factory environments. With 95.5 dB SNR, it accurately digitizes small sensor signals, improving control loop performance. The SPI interface allows easy integration with industrial microcontrollers, and the on-chip sequencer can automatically scan channels, reducing host processor overhead.
推荐
Battery-Powered Instrumentation
The AD4696BCPZ operates from a 2.5V to 5.5V supply and consumes only 12 mW at 1 MSPS, making it ideal for portable instruments. Its low power and standby mode extend battery life in field devices. The Easy Drive inputs allow direct connection to high-impedance sensors, reducing component count and power consumption. The device's small 5x5 mm LFCSP package fits space-constrained designs. With 16 channels, it can monitor multiple parameters such as temperature, pressure, and voltage in a single device, making it perfect for handheld data loggers and wireless sensor nodes.
推荐
Medical Monitoring Systems
In medical devices such as patient monitors and diagnostic equipment, the AD4696BCPZ provides high-resolution conversion of biosignals. Its 16-bit resolution and 95.5 dB SNR ensure accurate capture of ECG, EEG, and other physiological signals. The device's low power consumption is critical for battery-operated wearable monitors. The Easy Drive feature simplifies the interface to high-impedance electrodes, reducing noise and artifacts. The SPI interface enables seamless connection to medical-grade microcontrollers, and the wide temperature range supports sterilization and environmental requirements. The 16-channel input allows simultaneous monitoring of multiple vital signs.
推荐
Data Acquisition Systems
The AD4696BCPZ is a versatile building block for general-purpose data acquisition systems. Its 16 channels and 1 MSPS throughput allow high-speed sampling of multiple analog signals. The device's Easy Drive technology reduces the need for external driver amplifiers, simplifying the design and reducing cost. The on-chip sequencer can be programmed to scan channels in a custom order, optimizing data collection. With an SPI interface, it easily connects to FPGAs, microcontrollers, and DSPs. The device's high SNR and low THD ensure accurate representation of the input signals, making it suitable for laboratory instruments and test equipment.
推荐
Automotive Test and Measurement
In automotive test systems, the AD4696BCPZ can monitor multiple sensors such as temperature, pressure, and position. Its 16-channel input and 1 MSPS sampling rate enable real-time data acquisition for engine control and diagnostics. The device operates over -40C to +125C, suitable for under-hood environments. The Easy Drive inputs simplify connection to sensors with high output impedance. The SPI interface allows integration with automotive microcontrollers, and the device's low power consumption is beneficial for battery-powered test equipment. The high SNR ensures accurate measurement of small signals in noisy automotive environments.
推荐
IoT and Smart Sensors
The AD4696BCPZ is well-suited for IoT devices that require multi-channel analog sensing. Its low power consumption and small package make it ideal for wireless sensor nodes. The Easy Drive technology allows direct connection to sensors without external buffers, reducing component count and power. The device's SPI interface is compatible with low-power microcontrollers, and the on-chip sequencer can wake up and sample channels on demand, saving power. With 16 channels, it can monitor temperature, humidity, light, and other parameters in a single device, enabling compact smart sensor designs. The wide supply voltage range supports battery-powered operation.
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推荐产品汇总
工程参考数据： AD4696BCPZ ——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 | AD4695BCPZ | AD4696BCPZ-RL7 | AD4696BCPZ-RL |
|---|---|---|---|---|
| Package | 32-LFCSP-WQ (5x5 mm) | 32-LFCSP-WQ (5x5 mm) | 32-LFCSP-WQ (5x5 mm) | 32-LFCSP-WQ (5x5 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 Bit | 16 Bit | 16 Bit | 16 Bit |
| Sampling Rate | 1 MSPS | 500 kSPS | 1 MSPS | 1 MSPS |
| Number of Channels | 16 | 16 | 16 | 16 |
| SNR | 95.5 dB | 95.5 dB | 95.5 dB | 95.5 dB |
| THD | -110 dB | -110 dB | -110 dB | -110 dB |
| Interface | SPI | SPI | SPI | SPI |
关键差异点
- 16-channel input with Easy Drive technology （对比 AD4695BCPZ)
- Higher sampling rate （对比 AD4695BCPZ)
- Same package and pinout （对比 AD4695BCPZ)
设计说明
Decouple the AVDD and VIO pins with 10uF and 0.1uF capacitors placed as close to the pins as possible. Use a low-impedance ground plane to minimize noise. The analog and digital supplies should be separated and connected at a single point to avoid digital switching noise coupling into the analog circuitry.
Place the reference decoupling capacitor (10uF) close to the REF pin. Route analog inputs away from digital traces to prevent crosstalk. Use a solid ground plane under the device and connect the exposed pad (EP) to ground with multiple vias for thermal and electrical performance.
Ensure the input voltage does not exceed the supply rails. For high-impedance sources, use the Easy Drive feature to minimize input current. Avoid floating unused analog inputs; tie them to ground or a reference voltage. The SPI interface should be operated within the specified clock frequency to ensure reliable communication.
合规信息
RoHS compliant per distributor listings. Not AEC-Q100 qualified. Other compliance data not specified in provided sources.
