AD7699BCPZ - 16-Bit 8-Ch 500kSPS SAR ADC | Analog Devices
料号： AD7699BCPZ ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $11.13 | $11.13 |
| 10 | $10.25 | $102.50 |
| 100 | $9.45 | $945.00 |
| 500 | $8.72 | $4,360.00 |
| 1,000 | $8.05 | $8,050.00 |
AD7699BCPZ 概述
An ADC (analog-to-digital converter) is an electronic component that converts continuous analog signals into discrete digital values for processing by digital systems. The AD7699 is a SAR ADC, which uses a binary search algorithm to approximate the input voltage with high speed and accuracy. SAR ADCs are widely used in data acquisition systems, motor control, and medical instrumentation due to their excellent balance of speed, resolution, and power consumption.
Key features of the AD7699BCPZ include 16-bit resolution with no missing codes, an 8-channel multiplexer with unipolar single-ended, differential (GND sense), and pseudobipolar input modes, and a throughput of 500 kSPS. It offers an INL of ±0.5 LSB typical and ±1.5 LSB maximum (±23 ppm of FSR), ensuring high linearity for precision measurements. The device also features a dynamic range of and operates over a temperature range of -40°C to +125°C.
The AD7699 uses a charge redistribution SAR architecture with an internal track-and-hold circuit, providing accurate sampling without external sample-and-hold components. It includes a flexible serial interface that is compatible with SPI, QSPI, MICROWIRE, and DSPs, simplifying integration with microcontrollers and FPGAs. The device also offers a busy indicator and a conversion result readback feature, enhancing system design flexibility.
Typical applications include multichannel data acquisition systems, industrial process control, medical instrumentation, and battery-powered portable devices. The AD7699's low power consumption and small package make it ideal for these applications, where board space and power efficiency are critical.
When designing with the AD7699BCPZ, ensure proper decoupling of the VDD and VIO pins with 0.1 µF and 10 µF capacitors, and provide a clean reference voltage to achieve specified performance. The analog input range should be set according to the selected input mode, and the reference voltage should be stable and low-noise for optimal SNR.
直接替换替代料： AD7699BCPZ ——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： AD7699BCPZ （相同外形与封装尺寸） ——差异在于 Input Type, Package, Resolution, Architecture, Data Interface.
快速对比工具——选择替代料号进行并排对比：
AD7699BCPZRL7
✅ 直接替换📋 参考替代料（不在目录中）
AD7689BCPZ
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD7690BCPZRL7
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$17.6 / 个
查看数据手册 →ADS8339
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
MAX1169
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
AD7699BCPZ 最大额定值与电气特性
| 分辨率 | 16 bits |
| Number of Channels | 8 |
| 采样率 | 500 kSPS |
| Input Type | Single-Ended, Differential, Pseudo-Differential |
| 接口 | SPI, QSPI, MICROWIRE, DSP |
| Architecture | SAR |
| 电源电压 | 5 V |
| INL | ±0.5 LSB typical, ±1.5 LSB maximum |
| 封装 | 20-LFCSP (4x4 mm) |
| 工作温度 | -40°C to +125°C |
| 安装类型 | Surface Mount |
| Reference Type | External |
| Number of Inputs | 8 |
| Data Interface | Serial |
| RoHS 状态 | Compliant |
AD7699BCPZ 引脚配置
| 引脚 1 | IN0 — Analog input channel 0 |
| 引脚 2 | IN1 — Analog input channel 1 |
| 引脚 3 | IN2 — Analog input channel 2 |
| 引脚 4 | IN3 — Analog input channel 3 |
| 引脚 5 | IN4 — Analog input channel 4 |
| 引脚 6 | IN5 — Analog input channel 5 |
| 引脚 7 | IN6 — Analog input channel 6 |
| 引脚 8 | IN7 — Analog input channel 7 |
| 引脚 9 | GND — Ground |
| 引脚 10 | VDD — Power supply (5V) |
| 引脚 11 | VIO — Digital interface supply |
| 引脚 12 | SCK — Serial clock input |
| 引脚 13 | SDI — Serial data input |
| 引脚 14 | SDO — Serial data output |
| 引脚 15 | CNV — Convert input |
| 引脚 16 | BUSY — Busy output |
| 引脚 17 | REF — Reference input |
| 引脚 18 | REFGND — Reference ground |
| 引脚 19 | PD — Power-down input |
| 引脚 20 | EP — Exposed pad (thermal and ground) |
典型应用
AD7699BCPZ 适用于 6 应用s: Multichannel Data Acquisition, Industrial Process Control, Medical Instrumentation, Battery-Powered Portable Devices, Test and Measurement Equipment, Motor Control.
Multichannel Data Acquisition
The AD7699BCPZ's 8-channel multiplexer and 500 kSPS throughput enable simultaneous sampling of multiple analog signals in industrial data acquisition systems. Its 16-bit resolution and low INL (±0.5 LSB typical) ensure accurate measurement of sensor outputs, while the small LFCSP package saves board space. The device's SPI-compatible interface simplifies connection to microcontrollers, and its low power consumption makes it suitable for battery-powered portable data loggers.
推荐
Industrial Process Control
In industrial process control, the AD7699BCPZ provides precise conversion of analog signals from temperature, pressure, and flow sensors. Its 16-bit resolution and ±1.5 LSB maximum INL ensure accurate monitoring and control. The device's differential input mode with GND sense rejects common-mode noise, improving measurement integrity in noisy industrial environments. The wide operating temperature range (-40°C to +125°C) allows deployment in harsh conditions, and the serial interface supports isolated data transfer using digital isolators.
推荐
Medical Instrumentation
The AD7699BCPZ is well-suited for medical instrumentation such as patient monitoring and diagnostic equipment. Its 16-bit resolution and low noise performance enable accurate acquisition of biomedical signals like ECG and EEG. The 8-channel multiplexer allows monitoring of multiple physiological parameters with a single ADC, reducing system complexity. The small LFCSP package is ideal for portable medical devices, and the low power consumption extends battery life in wearable monitors.
推荐
Battery-Powered Portable Devices
The AD7699BCPZ's low power consumption and small footprint make it ideal for battery-powered portable devices such as handheld multimeters and data loggers. Its 500 kSPS sampling rate allows fast measurements while minimizing active time, and the device can be powered down between conversions to save energy. The 8-channel input multiplexer enables monitoring of multiple battery cells or sensor inputs, and the SPI interface is compatible with low-power microcontrollers.
推荐
Test and Measurement Equipment
In test and measurement equipment, the AD7699BCPZ provides high-speed, high-resolution digitization of analog signals. Its 16-bit resolution and 500 kSPS throughput enable accurate capture of waveforms in oscilloscopes and spectrum analyzers. The device's excellent linearity (±0.5 LSB typical INL) ensures faithful reproduction of input signals, and the flexible input modes accommodate various signal types. The compact LFCSP package allows dense channel integration in multi-channel instruments.
推荐
Motor Control
The AD7699BCPZ is used in motor control systems to digitize current and voltage feedback signals. Its 8-channel multiplexer allows monitoring of multiple phase currents and DC bus voltage with a single ADC. The 500 kSPS sampling rate is sufficient for high-bandwidth current loops, and the 16-bit resolution provides precise control. The device's differential input mode rejects common-mode noise from motor drives, and its wide temperature range suits industrial motor controllers.
推荐
推荐产品汇总
工程参考数据： AD7699BCPZ ——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 | AD7699BCPZRL7 | AD7689BCPZ | AD7690BCPZ | ADS8339 | MAX1169 |
|---|---|---|---|---|---|---|
| Package | 20-LFCSP (4x4 mm) | 20-LFCSP (4x4 mm) | 20-LFCSP (4x4 mm) | 20-LFCSP (4x4 mm) | 20-LFCSP (4x4 mm) | 20-LFCSP (4x4 mm) |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Texas Instruments | Maxim Integrated |
| Resolution | 16 bits | 16 bits | 16 bits | 16 bits | 16 bits | 16 bits |
| Number of Channels | 8 | 8 | 4 | 1 | 8 | 8 |
| Sampling Rate | 500 kSPS | 500 kSPS | 500 kSPS | 400 kSPS | 500 kSPS | 500 kSPS |
| INL (Max) | ±1.5 LSB | ±1.5 LSB | ±1.5 LSB | ±1.5 LSB | ±2 LSB | ±2 LSB |
| Supply Voltage | 5V | 5V | 5V | 5V | 5V | 5V |
| Interface | SPI, QSPI, MICROWIRE, DSP | SPI, QSPI, MICROWIRE, DSP | SPI, QSPI, MICROWIRE, DSP | SPI, QSPI, MICROWIRE, DSP | SPI | SPI |
关键差异点
- 8-channel multiplexer in a small LFCSP package （对比 AD7689BCPZ)
- Higher sampling rate than AD7690 （对比 AD7690BCPZ)
- Lower INL than cross-brand alternatives （对比 ADS8339)
设计说明
Decouple the VDD pin with a 10 µF and 0.1 µF capacitor placed as close to the pin as possible. The VIO pin should be decoupled with a 0.1 µF capacitor to the digital ground. Use a low-noise, low-impedance reference source for the REF pin to achieve specified SNR and INL performance.
For optimal performance, use a solid ground plane and separate analog and digital ground planes if necessary. Route analog inputs away from digital traces to minimize coupling. The exposed pad (EP) should be soldered to the ground plane for thermal and electrical grounding.
Ensure the reference voltage is stable and within the specified range (2.3V to VDD). Avoid driving the analog inputs beyond the supply rails to prevent latch-up. The CNV pin must be low during conversion to avoid corrupting the conversion result. Use a series resistor on the SDO line if the host is not ready to receive data.
合规信息
RoHS compliant per Analog Devices product page. No AEC-Q100 qualification indicated for this part.
