AD7091R-2BRUZ - 12-Bit 1MSPS SAR ADC | Analog Devices
MPN: AD7091R-2BRUZ ✓ Hoạt độngAD7091R-2BRUZ Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho AD7091R-2BRUZ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với AD7091R-2BRUZ (cùng hình factor và footprint) — khác nhau ở Package, Interface, Number of Channels, Internal Reference, Input Type.
AD7091R-2BRUZ-RL7
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
AD7091R-4BRUZ
⚡ Đồng gói✗ Hết hàng
$3.04 / Đơn vị
Xem tài liệu →AD7091R-8BRUZ
⚡ Đồng gói📋 Tham chiếu thay thế (không có trong danh mục)
AD7091R-5BRUZ-RL7
⚡ Đồng góiLiên hệ để biết giá
Xem tài liệu →AD7091R-2BRUZ-RL
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
AD7091R-2BRUZ Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bits |
| Number of Channels | 2 |
| Tỷ lệ lấy mẫu | 1 MSPS |
| Input Type | Single-ended |
| Điện áp cung cấp | 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 |
| Giao diện | SPI |
| Hộp | 16-lead TSSOP |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Number of Inputs | 2 |
Cấu hình chân AD7091R-2BRUZ
| Chân 1 | VDD — Power supply input, 2.7V to 5.25V |
| Chân 2 | VIN0 — Analog input channel 0 |
| Chân 3 | VIN1 — Analog input channel 1 |
| Chân 4 | GND — Ground |
| Chân 5 | SCLK — Serial clock input for SPI |
| Chân 6 | SDI — Serial data input for SPI |
| Chân 7 | SDO — Serial data output for SPI |
| Chân 8 | CS — Chip select (active low) |
| Chân 9 | GND — Ground |
| Chân 10 | VREF — Reference voltage output (2.5V internal) |
| Chân 11 | ALERT — Alert output for out-of-range detection |
| Chân 12 | CONVST — Conversion start input |
| Chân 13 | GND — Ground |
| Chân 14 | VDD — Power supply input |
| Chân 15 | NC — No connect |
| Chân 16 | NC — No connect |
Ứng dụng tiêu biểu
AD7091R-2BRUZ phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho AD7091R-2BRUZ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- Ultralow power consumption (vsAD7091R-4BRUZ)
- Pin-compatible with tape-and-reel variant (vsAD7091R-2BRUZ-RL7)
- Small package size (vsAD7091R-8BRUZ)
Ghi chú thiết kế
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.
Thông tin tuân thủ
RoHS compliance is indicated by the 'Z' suffix in the part number. Other compliance details are not specified in the provided data.
