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Analog Devices Inc. AD7366BRUZ
- Part No.:
- AD7366BRUZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7366BRUZ.pdf
- Description:
- IC ADC 12BIT SAR 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,809
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Product details
Overview
AD7366BRUZ from Analog Devices is a dual-channel, simultaneous-sampling 12-bit SAR ADC with true bipolar ±10 V/±5 V/0 V–10 V analog inputs, 1 MSPS throughput, and integrated 2.5 V ±0.2% reference. It operates across −40°C to +85°C and targets precision industrial data acquisition systems requiring synchronized voltage monitoring of two independent sensor or control signals.
For engineers reviewing the AD7366BRUZ datasheet, AD7366BRUZ pinout, AD7366BRUZ application, or AD7366BRUZ equivalent, key selection criteria include simultaneous sampling capability, high input impedance (260 kΩ @ ±10 V, 1 MSPS), low power consumption (8.3 mA typical active, 320 nA shutdown), SPI/QSPI/MICROWIRE-compatible serial interface, and iCMOS® process enabling ±16.5 V supply tolerance.
Technical Context
The AD7366BRUZ integrates two independent 12-bit successive approximation register (SAR) ADCs, each with a 2-channel multiplexer and wide-bandwidth track-and-hold amplifier. Its iCMOS® process enables high-voltage analog signal handling (±12 V with external 3 V reference) while maintaining low power and small TSSOP-24 footprint.
Conversion is initiated by CNVST falling edge; BUSY goes high during conversion and falls within 610 ns. Serial readout occurs MSB-first on DOUTA/DOUTB with 12-bit data per channel, compatible with SPI, QSPI, MICROWIRE, and DSP interfaces at up to 48 MHz SCLK.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit, guaranteed no missing codes - ensures monotonic transfer function for closed-loop control integrity |
| Throughput Rate | 1 MSPS - supports real-time sampling of fast transients in motor control or power quality monitoring |
| Input Ranges | Programmable ±10 V, ±5 V, or 0 V–10 V via RANGE0/RANGE1 pins - eliminates external level-shifting for mixed-signal sensor interfaces |
| SNR | 72 dB at 50 kHz - enables accurate spectral analysis of 12-bit data in vibration or audio-conditioning applications |
| Reference | On-chip 2.5 V ±0.2% (25°C), disableable - reduces BOM count and improves system accuracy without external reference calibration |
| Supply Voltages | VDD = +11.5 V to +16.5 V, VSS = −16.5 V to −11.5 V, AVCC/DVCC = 4.75 V to 5.25 V - supports direct connection to industrial ±15 V rails |
| Power Consumption | 8.3 mA typical active, 320 nA shutdown - enables low-power wake-on-event architectures in remote I/O modules |
Pinout & Package
AD7366BRUZ is housed in a 24-lead TSSOP package (4.4 mm × 7.8 mm, 0.65 mm pitch) with exposed pad for thermal enhancement. Pin layout supports clean analog/digital ground separation and dedicated decoupling paths for AVCC, DVCC, VDD, VSS, and reference buffers.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DOUTA / DOUTB | Serial data outputs | Simultaneous 12-bit results from ADC A and ADC B, MSB-first, clocked on SCLK falling edge - enables single-port dual-channel readout |
| CNVST | Conversion start trigger | Falling-edge–initiated sampling with built-in power-down recovery - simplifies timing-critical synchronous acquisition |
| BUSY | Conversion status indicator | Active-high pulse lasting ≤610 ns - provides hardware-ready signal for DMA or interrupt-driven firmware |
| RANGE0 / RANGE1 | Analog input range select | Logic-controlled configuration of ±10 V, ±5 V, or 0 V–10 V full-scale - eliminates software register writes for range changes |
| REFSEL | Reference source select | High = internal 2.5 V reference enabled; low = external reference accepted at DCAPA/DCAPB - supports flexible system-level reference architecture |
| VA1 / VA2 / VB1 / VB2 | Analog input terminals | Four single-ended inputs grouped as two pairs (A: VA1/VA2; B: VB1/VB2) - supports differential pair emulation via software subtraction |
| DCAPA / DCAPB | Reference decoupling pins | Accept 680 nF capacitors to stabilize internal reference buffer - critical for SNR performance at full throughput |
| AGND / DGND | Analog/digital ground | Separate pins with ≤0.3 V max potential difference - enforces strict partitioning for noise-sensitive 12-bit conversion |
Key Features
| Feature | Design Value |
|---|---|
| True bipolar input support | Direct ±10 V, ±5 V, and 0 V–10 V ranges without external op-amp circuitry - reduces component count and PCB area in PLC analog input modules |
| Simultaneous sampling & conversion | Two independent ADCs capture VA1/VA2 and VB1/VB2 at identical timestamps - essential for phase-sensitive measurements in energy metering |
| iCMOS® process technology | Enables ±16.5 V supply operation and high-voltage input tolerance while achieving 8.3 mA active current - delivers industrial robustness without sacrificing efficiency |
| High input impedance | 260 kΩ @ ±10 V, 1 MSPS - minimizes loading error when interfacing directly with high-impedance sensors (e.g., strain gauges, thermocouples) |
| SPI/QSPI/MICROWIRE compatibility | Standard serial protocol support with no custom driver development - accelerates integration into FPGA, ARM Cortex-M, or DSP-based platforms |
Applications
| Industrial Process Monitoring | Motor Drive Current Sensing |
|---|---|
Use Scenario: Real-time monitoring of multiple analog process variables (e.g., pressure, temperature, flow) in distributed control systems. IC Role / Device Role / Timing Role: Dual-channel simultaneous ADC acquiring synchronized samples from two isolated sensor front-ends. Use Value: Eliminates inter-channel skew in feedback loops, improving PID controller stability and reducing measurement uncertainty in multi-variable control. |
Use Scenario: High-speed sampling of phase currents in three-phase inverters for field-oriented control (FOC). IC Role / Device Role / Timing Role: Simultaneous capture of two motor phase currents with sub-μs timing alignment. Use Value: Enables accurate reconstruction of third-phase current via Kirchhoff's law, reducing need for third shunt and associated isolation components. |
| Energy Metering Reference Design | Test & Measurement Data Logger |
Use Scenario: Class 0.2 polyphase energy meter requiring synchronized voltage and current sampling per phase. IC Role / Device Role / Timing Role: Dual ADC channel pair assigned to voltage and current inputs of one phase, with precise sample alignment. Use Value: Maintains <100 ps aperture delay matching between channels - critical for <0.1° phase angle error at 50/60 Hz fundamental. |
Use Scenario: Portable battery-powered data logger capturing transient waveforms from vibration or acoustic sensors. IC Role / Device Role / Timing Role: Low-power 12-bit ADC with 320 nA shutdown mode and programmable input ranges. Use Value: Extends battery life >1 year in sleep-wake configurations while supporting diverse sensor output levels without hardware reconfiguration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7367BRUZ | 14-bit resolution, 76 dB SNR, 680 ns conversion time - higher precision at same speed | Required where 14-bit linearity and <±3.5 LSB INL are mandatory (e.g., calibration equipment) | Select AD7367BRUZ when system accuracy budget demands >12-bit effective resolution; pinout and interface are identical |
| ADS8684IPWR | 16-bit, 500 kSPS, integrated PGA and reference, SPI interface - lower speed but higher resolution and signal conditioning | Suitable for slower, high-accuracy applications needing programmable gain (±10.24 V FSR) without external amplifiers | Choose ADS8684IPWR when input signal conditioning (gain/offset) must be integrated; not drop-in due to different pinout and supply requirements |
Compared with AD7366BRUZ, AD7367BRUZ delivers 2 extra bits of resolution and 4 dB better SNR at identical 1 MSPS throughput and pin compatibility, while ADS8684IPWR trades speed for integrated signal chain functionality and higher resolution-making it suitable for cost-sensitive, lower-throughput instrumentation where PGA flexibility offsets its non-interchangeable layout.
Availability
AD7366BRUZ is available at Aetrix Electronics and suitable for industrial process monitoring, motor drive current sensing, energy metering reference designs, and test & measurement data loggers requiring stable component supply across extended product lifecycles.
Supply support for AD7366BRUZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design and manufacturing expertise spanning over 50 years.
The AD7366BRUZ belongs to Analog Devices' precision SAR ADC product line, engineered specifically for industrial automation and instrumentation applications demanding simultaneous sampling, high-voltage input tolerance, and low-power operation in harsh environments.
FAQ
What input voltage ranges does the AD7366BRUZ support?
The AD7366BRUZ supports three programmable input voltage ranges selected via RANGE0 and RANGE1 pins: ±10 V, ±5 V, and 0 V to 10 V. With an external 3 V reference applied to DCAPA/DCAPB and REFSEL low, it also accepts true bipolar ±12 V inputs. Minimum ±12 V supplies (VDD ≥ +11.5 V, VSS ≤ −11.5 V) are required for the ±12 V range. All ranges maintain 12-bit no-missing-codes performance.
How does the AD7366BRUZ achieve simultaneous sampling across two channels?
The AD7366BRUZ achieves true simultaneous sampling using two independent SAR ADC cores, each preceded by its own track-and-hold amplifier and 2-channel multiplexer. A single CNVST falling edge initiates hold mode in both T/H circuits at the exact same instant, ensuring identical sampling timestamps for VA1/VA2 and VB1/VB2. This architecture guarantees sub-100 ps aperture delay matching between channels.
Can the AD7366BRUZ operate with an external reference, and how is it configured?
Yes, the AD7366BRUZ can use an external reference. Set REFSEL to logic low, then apply a 2.5 V to 3.0 V reference voltage to either or both DCAPA and DCAPB pins. The internal 2.5 V reference is disabled automatically. External reference mode supports ±12 V input ranges when a 3 V reference is used, and requires appropriate decoupling (680 nF recommended) on DCAPA/DCAPB for optimal SNR performance.
What is the power consumption profile of the AD7366BRUZ in normal and shutdown modes?
In normal operational mode at 1 MSPS with internal reference enabled, the AD7366BRUZ draws 5 mA ICC, 2.0 mA IDD, and 1.6 mA ISS - totaling ~89 mW at ±16.5 V supplies. In shutdown mode, it consumes only 0.3 µA ICC, 1 µA IDD, and 1 µA ISS, resulting in ~48.75 µW total power. The rapid 70 µs wake-up time from shutdown enables efficient duty-cycled acquisition in battery-powered systems.
Is the AD7366BRUZ pin-compatible with other devices in the AD7366/AD7367 family?
Yes, the AD7366BRUZ is fully pin-compatible with AD7366-5BRUZ, AD7367BRUZ, and AD7367-5BRUZ in the 24-lead TSSOP package. All share identical pin functions, supply requirements, and serial interface timing. The primary differences are resolution (12-bit vs. 14-bit) and throughput (1 MSPS vs. 500 kSPS), which are determined by part number - allowing seamless upgrade paths without PCB redesign.
AD7366BRUZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- iCMOS®
- Package/Case:
- 24-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 2
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- ±11.5V ~ 16.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- Selectable Address, Simultaneous Sampling, True Bipolar
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7366BRUZ FAQ
1.How can I place an order for AD7366BRUZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7366BRUZ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AD7366BRUZ reliable?
The price and inventory of AD7366BRUZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7366BRUZ is usually 5 days.
3.What payment methods are accepted for AD7366BRUZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7366BRUZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7366BRUZ?
AD7366BRUZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7366BRUZ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AD7366BRUZ?
For technical support, including AD7366BRUZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7366BRUZ requirements.
6.How does Aetrix verify that AD7366BRUZ is sourced from the original manufacturer or authorized distributors?
All AD7366BRUZ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AD7366BRUZ meets industry standards.
7.What is the process for return or replacement of AD7366BRUZ?
All AD7366BRUZ units undergo pre-shipment inspection (PSI). If there is an issue with AD7366BRUZ, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AD7366BRUZ part is unused and in its original packaging.
Return procedure for AD7366BRUZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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