AD7091R-2BRUZ - 12-Bit 1MSPS SAR ADC | Analog Devices
部品番号: AD7091R-2BRUZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $2.86 | $2.86 |
| 10 | $2.58 | $25.80 |
| 100 | $2.29 | $229.00 |
| 500 | $2.06 | $1,030.00 |
| 1,000 | $1.83 | $1,830.00 |
AD7091R-2BRUZ 概要
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 consumption, and ease of use, making it ideal for applications such as data acquisition, industrial control, and portable instrumentation. The AD7091R-2 is part of the AD7091R family, which includes 2-, 4-, and 8-channel versions, all sharing the same core architecture and performance characteristics.
Key features of the AD7091R-2BRUZ include ultralow power consumption (typically 367 µA at 3V and 1 MSPS), a wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 1.5 MHz, and an on-chip conversion clock that simplifies system design. The device also includes a channel sequencer that allows preprogrammed selection of channels to be converted sequentially, enhancing flexibility in multi-channel applications.
The AD7091R-2BRUZ uses a SAR architecture with an internal reference and a high-speed serial interface that supports data read after conversion, achieving a 1 MSPS throughput rate with a 50 MHz SCLK. The device is designed for low power and high accuracy, with a typical power dissipation of less than 2 mW at 3V, making it suitable for battery-powered and portable applications.
Typical applications include battery monitoring, data acquisition systems, industrial process control, and portable instrumentation. The wide input bandwidth and low power consumption make it ideal for applications requiring high-speed, low-power analog-to-digital conversion.
When designing with this device, ensure that the analog input voltage does not exceed the supply voltage and that adequate decoupling capacitors are placed near the power supply pins. The SPI interface should be configured for the correct clock polarity and phase to ensure reliable data transfer.
ドロップイン代替品: AD7091R-2BRUZ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: AD7091R-2BRUZ （同一形状・フットプリント） — 相違点: Package, Interface, Number of Channels, Internal Reference, Input Type.
クイック比較ツール — 並列比較する代替部品を選択:
AD7091R-2BRUZ-RL7
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD7091R-4BRUZ
⚡ 同一パッケージ✓ 在庫あり
$3.04 / 個
データシートを見る →AD7091R-8BRUZ
⚡ 同一パッケージ📋 参考代替品（カタログ未掲載）
AD7091R-5BRUZ-RL7
⚡ 同一パッケージ✓ 在庫あり
$5.6 / 個
データシートを見る →AD7091R-2BRUZ-RL
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
AD7091R-2BRUZ 最大定格＆電気的特性
| 分解能 | 12 bits |
| Number of Channels | 2 |
| サンプリングレート | 1 MSPS |
| Input Type | Single-ended |
| 電源電圧 | 2.7 V to 5.25 V |
| Power Consumption | 1.4 mW at 1 MSPS (typical) |
| Power-Down Current | 550 nA typical at VDD = 5.25 V, 435 nA typical at VDD = 3 V |
| Input Bandwidth | 1.5 MHz (track-and-hold) |
| Reference Type | Internal 2.5 V |
| インターフェース | SPI |
| パッケージ | 16-lead TSSOP |
| 実装タイプ | Surface Mount |
| RoHS ステータス | Compliant |
| Number of Inputs | 2 |
AD7091R-2BRUZ ピン構成
| ピン 1 | VDD — Power supply input, 2.7V to 5.25V |
| ピン 2 | VIN0 — Analog input channel 0 |
| ピン 3 | VIN1 — Analog input channel 1 |
| ピン 4 | GND — Ground |
| ピン 5 | SCLK — Serial clock input for SPI |
| ピン 6 | SDI — Serial data input for SPI |
| ピン 7 | SDO — Serial data output for SPI |
| ピン 8 | CS — Chip select (active low) |
| ピン 9 | GND — Ground |
| ピン 10 | VREF — Reference voltage output (2.5V internal) |
| ピン 11 | ALERT — Alert output for out-of-range detection |
| ピン 12 | CONVST — Conversion start input |
| ピン 13 | GND — Ground |
| ピン 14 | VDD — Power supply input |
| ピン 15 | NC — No connect |
| ピン 16 | NC — No connect |
主な用途
AD7091R-2BRUZ の用途: 6 件s: Battery Monitoring, Data Acquisition Systems, Industrial Process Control, Portable Instrumentation, Medical Monitoring, IoT Sensors.
Battery Monitoring
The AD7091R-2BRUZ's ultralow power consumption (1.4 mW at 1 MSPS) and wide supply range (2.7V to 5.25V) make it ideal for battery-powered devices. It can monitor battery voltage and current with high accuracy, extending battery life. The power-down mode (550 nA) further reduces power when idle. Its SPI interface allows easy integration with microcontrollers for real-time battery management.
おすすめ
Data Acquisition Systems
With a 1 MSPS sampling rate and 12-bit resolution, the AD7091R-2BRUZ is well-suited for high-speed data acquisition systems. Its wide input bandwidth (1.5 MHz) allows accurate capture of fast-changing signals. The internal 2.5V reference simplifies design, and the SPI interface enables high-speed data transfer to DSPs or FPGAs. It is ideal for industrial data loggers and test equipment.
おすすめ
Industrial Process Control
The AD7091R-2BRUZ operates from 2.7V to 5.25V, making it compatible with industrial supply rails. Its low power consumption and small 16-lead TSSOP package are ideal for space-constrained control modules. The device can monitor process variables such as temperature and pressure with high accuracy. The SPI interface allows easy connection to industrial microcontrollers for closed-loop control.
おすすめ
Portable Instrumentation
The ultralow power consumption (1.4 mW at 1 MSPS) and power-down mode (550 nA) make the AD7091R-2BRUZ perfect for portable instruments. Its small 16-lead TSSOP package saves board space, and the internal reference reduces external component count. The device can operate from a single 3V battery, making it ideal for handheld multimeters and portable data loggers.
おすすめ
Medical Monitoring
The AD7091R-2BRUZ's low power and high accuracy make it suitable for medical monitoring devices such as patient monitors and wearable health trackers. Its 12-bit resolution provides sufficient precision for vital sign monitoring. The wide supply range allows operation from battery or USB power. The SPI interface enables seamless integration with medical-grade microcontrollers for data processing and transmission.
おすすめ
IoT Sensors
The AD7091R-2BRUZ is ideal for IoT sensor nodes that require low power and high accuracy. Its 1 MSPS sampling rate allows fast data acquisition, while the power-down mode (550 nA) conserves energy during idle periods. The small package and SPI interface make it easy to integrate with wireless microcontrollers. It is suitable for smart home sensors, environmental monitoring, and industrial IoT applications.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: AD7091R-2BRUZ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | AD7091R-2BRUZ-RL7 | AD7091R-4BRUZ | AD7091R-8BRUZ |
|---|---|---|---|---|
| Package | 16-lead TSSOP | 16-lead TSSOP | 16-lead TSSOP | 16-lead TSSOP |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits |
| Number of Channels | 2 | 2 | 4 | 8 |
| Sampling Rate | 1 MSPS | 1 MSPS | 1 MSPS | 1 MSPS |
| Supply Voltage | 2.7V to 5.25V | 2.7V to 5.25V | 2.7V to 5.25V | 2.7V to 5.25V |
| Power Consumption | 1.4 mW at 1 MSPS | 1.4 mW at 1 MSPS | 1.4 mW at 1 MSPS | 1.4 mW at 1 MSPS |
| Interface | SPI | SPI | SPI | SPI |
主な差別化要因
- Ultralow power consumption （vs AD7091R-4BRUZ)
- Pin-compatible with tape-and-reel variant （vs AD7091R-2BRUZ-RL7)
- Small package size （vs AD7091R-8BRUZ)
設計ノート
The AD7091R-2BRUZ operates from 2.7V to 5.25V. Use a low-noise LDO to supply VDD and place a 0.1uF and 10uF decoupling capacitor close to the VDD pin. The power-down mode reduces current to 550 nA at 5.25V, so implement a control signal to enter power-down when idle to extend battery life.
Place the AD7091R-2BRUZ close to the signal source to minimize trace inductance. Use a solid ground plane and separate analog and digital grounds if possible. Keep SPI traces short and avoid routing them near high-speed digital lines to reduce noise coupling. Refer to the datasheet layout guidelines for optimal performance.
Ensure the analog input voltage does not exceed VDD or go below GND to avoid damaging the ADC. The internal reference is 2.5V, so the input range is 0V to 2.5V. Use a buffer amplifier if the source impedance is high. Configure the SPI interface with correct clock polarity and phase (CPOL=0, CPHA=1) as per the datasheet.
コンプライアンス情報
RoHS compliance is indicated by the 'Z' suffix in the part number. Other compliance details are not specified in the provided data.
