AD4692BCPZ - 16-Channel 16-Bit SAR ADC | Analog Devices
MPN： AD4692BCPZ ✓ 啟用中AD4692BCPZ 概覽
An ADC is a device that converts an analog voltage into a digital representation. The AD4692 is a multiplexed SAR ADC, meaning it uses a single conversion engine shared across multiple input channels via an internal multiplexer. SAR ADCs are known for their high speed, low power, and excellent accuracy, making them suitable for a wide range of data acquisition systems. The AD4692 belongs to the family of data converters, which are essential in bridging the analog and digital worlds in applications such as industrial automation, medical instrumentation, and test equipment.
Key features of the AD4692BCPZ include 16 input channels, 16-bit resolution, and a 1 MSPS throughput. The Easy Drive technology reduces input current and voltage transients, allowing the use of smaller, lower-power amplifiers and references. Each channel has an averaging filter that can be configured to improve noise performance. The device operates from a single 5V supply and supports a wide analog input range, simplifying system design.
Technically, the AD4692 uses a charge redistribution SAR architecture with an internal reference buffer. The Easy Drive feature employs precharge buffers that significantly reduce the kickback charge, enabling direct connection to high-impedance sources without external drivers. The averaging filters can be programmed to average up to 128 samples, effectively increasing the resolution for low-frequency signals. The device also includes a flexible digital interface compatible with SPI, and supports daisy-chaining for multiple devices.
Typical applications include industrial process control, battery monitoring, data acquisition systems, and medical devices. The 16-channel input capability makes it ideal for monitoring multiple sensors, while the high accuracy and low noise ensure reliable measurements. The Easy Drive feature simplifies the analog front-end, reducing component count and board space.
When designing with the AD4692BCPZ, ensure proper decoupling of the AVDD and DVDD supplies with 10uF and 0.1uF capacitors. The reference input should be driven by a low-impedance source, and the analog inputs should be bypassed to ground to minimize noise. The device supports a power-down mode to reduce current consumption when not converting.
直接替換替代品，適用於 AD4692BCPZ — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： AD4692BCPZ （相同外形與佔位） — 差異在於 Supply Voltage, Input Type, Package, Sampling Rate, Number of Channels.
AD4692BCPZ-RL7
✅ 直接替換📋 參考替代品（不在目錄中）
AD4692BCPZ-RL
✅ 直接替換📋 參考替代品（不在目錄中）
AD4691BCPZ
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →AD4692BCPZ-REEL
✅ 直接替換📋 參考替代品（不在目錄中）
AD4692BCPZ-REEL7
✅ 直接替換📋 參考替代品（不在目錄中）
AD4692BCPZ 最大額定值與電氣特性
| 解析度 | 16 Bit |
| Number of Channels | 16 Input |
| 取樣率 | 1 MSPS |
| Architecture | SAR |
| Input Type | Single-Ended |
| 介面 | SPI |
| 供應電壓 | 5 V |
| 封裝 | 32-LFCSP (5x5 mm) |
| 工作溫度 | -40C to +125C |
| 安裝類型 | Surface Mount |
| Number of Inputs | 16 |
| Number of Converters | 1 |
| Reference Type | External |
| Data Interface | SPI, DSP |
| 功能特色 | Easy Drive, Averaging Filters |
AD4692BCPZ 腳位配置
| 腳位 1 | AVDD — Analog supply voltage |
| 腳位 2 | VIN0 — Analog input channel 0 |
| 腳位 3 | VIN1 — Analog input channel 1 |
| 腳位 4 | VIN2 — Analog input channel 2 |
| 腳位 5 | VIN3 — Analog input channel 3 |
| 腳位 6 | VIN4 — Analog input channel 4 |
| 腳位 7 | VIN5 — Analog input channel 5 |
| 腳位 8 | VIN6 — Analog input channel 6 |
| 腳位 9 | VIN7 — Analog input channel 7 |
| 腳位 10 | VIN8 — Analog input channel 8 |
| 腳位 11 | VIN9 — Analog input channel 9 |
| 腳位 12 | VIN10 — Analog input channel 10 |
| 腳位 13 | VIN11 — Analog input channel 11 |
| 腳位 14 | VIN12 — Analog input channel 12 |
| 腳位 15 | VIN13 — Analog input channel 13 |
| 腳位 16 | VIN14 — Analog input channel 14 |
| 腳位 17 | VIN15 — Analog input channel 15 |
| 腳位 18 | GND — Ground |
| 腳位 19 | REF — Reference input |
| 腳位 20 | REFGND — Reference ground |
| 腳位 21 | DVDD — Digital supply voltage |
| 腳位 22 | SCLK — Serial clock input |
| 腳位 23 | SDI — Serial data input |
| 腳位 24 | SDO — Serial data output |
| 腳位 25 | CS — Chip select |
| 腳位 26 | BUSY — Busy output |
| 腳位 27 | GPIO0 — General purpose I/O |
| 腳位 28 | GPIO1 — General purpose I/O |
| 腳位 29 | GPIO2 — General purpose I/O |
| 腳位 30 | GPIO3 — General purpose I/O |
| 腳位 31 | PD — Power down |
| 腳位 32 | EP — Exposed pad (thermal) |
典型應用
AD4692BCPZ 適用於 6 應用s: Industrial Process Control, Battery Monitoring Systems, Medical Instrumentation, Data Acquisition Systems, Automotive Test Equipment, IoT and Smart Sensors.
Industrial Process Control
The AD4692BCPZ is ideal for industrial process control systems that monitor multiple sensors such as temperature, pressure, and flow. Its 16 channels allow direct connection to a wide array of transducers, while the 16-bit resolution ensures accurate measurement of process variables. The 1 MSPS sampling rate enables real-time monitoring and control loops, and the Easy Drive technology simplifies the analog front-end by reducing the need for high-bandwidth driver amplifiers. This reduces component count and power consumption, making it suitable for distributed control systems and PLCs.
推薦
Battery Monitoring Systems
In battery monitoring, the AD4692BCPZ can measure cell voltages and temperatures across a battery pack. With 16 channels, it can monitor up to 16 individual cells or a combination of voltage and temperature sensors. The 16-bit resolution provides precise voltage readings, essential for state-of-charge estimation. The averaging filters help reduce noise from the switching converters often present in battery management systems. The device's low power consumption is beneficial for extending battery life in portable applications.
推薦
Medical Instrumentation
The AD4692BCPZ is well-suited for medical devices such as patient monitors and diagnostic equipment. Its 16-bit resolution and low noise are critical for accurate biopotential measurements like ECG and EEG. The multiple channels allow simultaneous monitoring of several physiological signals. The Easy Drive feature reduces the input loading, enabling direct connection to high-impedance electrodes without additional buffering. The compact LFCSP package is ideal for portable medical devices where space is limited.
推薦
Data Acquisition Systems
As a general-purpose data acquisition ADC, the AD4692BCPZ can be used in test and measurement equipment, data loggers, and laboratory instruments. Its 16 channels and 1 MSPS throughput allow high-speed capture of multiple analog signals. The SPI interface simplifies connection to microcontrollers and DSPs. The averaging filters can be configured to trade off speed for resolution, making it versatile for various signal types. The device's wide operating temperature range (-40C to +125C) ensures reliable operation in harsh environments.
推薦
Automotive Test Equipment
In automotive test and measurement, the AD4692BCPZ can monitor multiple sensors in engine control units, battery management, and vehicle dynamics. Its 16-bit resolution and 1 MSPS sampling rate are suitable for capturing fast transients in automotive electrical systems. The device's robustness over -40C to +125C makes it suitable for under-hood applications. The Easy Drive technology reduces the need for external components, saving board space in space-constrained automotive modules.
推薦
IoT and Smart Sensors
For IoT and smart sensor nodes, the AD4692BCPZ provides high-resolution multi-channel sensing in a compact package. Its low power consumption is critical for battery-powered devices. The 16 channels allow connection of multiple sensors, such as temperature, humidity, and gas sensors, to a single ADC. The SPI interface enables easy integration with low-power microcontrollers. The averaging filters can reduce noise, improving measurement accuracy in noisy environments.
推薦
推薦產品摘要
工程參考資料，適用於 AD4692BCPZ — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | AD4692BCPZ-RL7 | AD4692BCPZ-RL | AD4691BCPZ |
|---|---|---|---|---|
| Package | 32-LFCSP (5x5 mm) | 32-LFCSP (5x5 mm) - same | 32-LFCSP (5x5 mm) - same | 32-LFCSP (5x5 mm) - same |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 16 Bit | 16 Bit | 16 Bit | 16 Bit |
| Number of Channels | 16 | 16 | 16 | 8 |
| Sampling Rate | 1 MSPS | 1 MSPS | 1 MSPS | 1 MSPS |
| Interface | SPI | SPI | SPI | SPI |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V |
| Easy Drive | Yes | Yes | Yes | Yes |
主要差異化特點
- 16-channel input capability (對比AD4691BCPZ)
- Easy Drive technology (對比AD7606BSTZ)
- Per-channel averaging filters (對比AD7175-2BRUZ-RL7)
設計說明
Decouple the AVDD and DVDD 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 reference input should be driven by a low-impedance source, and a 10uF capacitor should be placed on the REF pin to filter noise.
For optimal performance, route analog inputs away from digital traces to avoid coupling. Use a solid ground plane under the ADC. The exposed pad (EP) should be soldered to the ground plane for thermal and electrical performance. Keep the SPI lines short and matched to reduce signal integrity issues.
Do not exceed the absolute maximum ratings on any pin. Ensure the analog input voltage stays within the specified range to avoid damage. The averaging filters can be used to reduce noise, but they increase conversion time; balance speed and accuracy according to the application. Always consult the datasheet for the correct timing diagram when interfacing with the SPI port.
合規資訊
RoHS compliant per Analog Devices product page. Not AEC-Q100 qualified.
