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Analog Devices Inc. AD7366BRUZ-5
- Part No.:
- AD7366BRUZ-5
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7366BRUZ-5.pdf
- Description:
- IC ADC 12BIT SAR 24TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:132
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Product details
Overview
AD7366BRUZ-5 from Analog Devices is a dual-channel, 12-bit, simultaneous-sampling SAR ADC with true bipolar input capability (±10 V, ±5 V, 0 V to +10 V), 500 kSPS 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 analog channel capture.
For engineers reviewing the AD7366BRUZ-5 datasheet, AD7366BRUZ-5 pinout, AD7366BRUZ-5 application, or AD7366BRUZ-5 equivalent, key selection considerations include simultaneous dual-channel sampling latency (<2 μs read time), iCMOS® high-voltage analog input architecture (±16.5 V supplies), SPI/QSPI-compatible serial interface, and channel-to-channel isolation >90 dB at 50 kHz.
Technical Context
The AD7366BRUZ-5 integrates two independent 12-bit SAR ADC cores, each preceded by a track-and-hold amplifier and fed via a 2-channel multiplexer. Its iCMOS® process enables ±16.5 V analog supply rails (VDD/VSS) while maintaining low power consumption (4–5.5 mW typical at 500 kSPS).
Conversion is initiated by a falling edge on CNVST; BUSY goes high during conversion and falls after 1.25 μs. Data is output MSB-first on DOUTA and DOUTB simultaneously-12 bits per channel-with SPI-compatible timing (20 MHz SCLK max, CS-controlled framing).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit, guaranteed no missing codes - ensures monotonic transfer function for closed-loop control feedback. |
| Throughput Rate | 500 kSPS - supports real-time monitoring of fast transients in motor drive current sensing or power quality analyzers. |
| SNR @ 50 kHz | 72 dB typical - enables accurate spectral analysis of 12-bit signals up to ~20 kHz bandwidth with <0.1% THD+N. |
| Analog Input Ranges | Programmable ±10 V, ±5 V, or 0 V to +10 V - eliminates external signal conditioning for mixed-polarity sensor interfaces. |
| Channel Isolation | −90 dB - prevents crosstalk between simultaneously sampled channels in multi-phase energy metering. |
| Reference Accuracy | 2.5 V ±0.2% - reduces system calibration burden in portable test equipment and modular DAQ systems. |
| Supply Voltages | VDD = +5 V to +16.5 V, VSS = −16.5 V to −5 V - supports direct connection to ±15 V industrial signal chains without level-shifting. |
Pinout & Package
AD7366BRUZ-5 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 1 is DOUTA; pin 24 is DGND. All analog and digital grounds are segregated but require tight coupling (<0.3 V potential difference) per layout guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DOUTA / DOUTB | Serial data outputs | Simultaneous 12-bit MSB-first streams from ADC A and ADC B; enable single-port dual-channel readout with 12 SCLK cycles. |
| CNVST | Conversion start trigger | Falling-edge–initiated hold-and-convert; low pulse duration ≥10 ns; powers down if held low post-conversion. |
| BUSY | Conversion status indicator | High during conversion (1.25 μs); used for timing synchronization or interrupt-driven data capture in microcontroller systems. |
| RANGE0 / RANGE1 | Analog input range select | Logic-level inputs that configure all four analog inputs (VA1/VA2/VB1/VB2) to ±10 V, ±5 V, or 0–10 V ranges. |
| REFSEL | Reference source selector | High = internal 2.5 V reference enabled; low = external reference applied to DCAPA/DCAPB pins (2.5–3.0 V supported). |
| DCAPA / DCAPB | Reference decoupling terminals | Accept 680 nF capacitors to stabilize internal reference buffers; also serve as buffered reference outputs when REFSEL = high. |
| VDD / VSS | High-voltage analog supplies | Support ±12 V true bipolar input when VDD ≥ +12 V and VSS ≤ −12 V; require 10 μF + 100 nF local decoupling. |
| AVCC / DVCC | Analog/digital core supplies | 4.75–5.25 V supplies; must be shorted together with ≤0.3 V transient difference to minimize noise coupling between domains. |
Key Features
| Feature | Design Value |
|---|---|
| True bipolar input support | Accepts ±10 V, ±5 V, and 0–10 V ranges without external op-amp gain/level-shift circuitry - reduces BOM count and PCB area in sensor front-ends. |
| Simultaneous sampling & conversion | Two independent ADCs acquire VA1/VA2 and VB1/VB2 at identical timestamps - essential for phase-accurate measurements in power inverters and motion control. |
| iCMOS® process technology | Enables high-voltage analog input stages (±16.5 V rails) alongside low-power CMOS logic - delivers industrial robustness without sacrificing resolution or speed. |
| High channel-to-channel isolation | −90 dB at 50 kHz - preserves signal integrity when measuring differential voltage/current pairs on adjacent channels in multi-channel DAQ modules. |
| Low power in operational mode | 4–5.5 mW total at 500 kSPS (VDD = +16.5 V, VSS = −16.5 V, AVCC/DVCC = +5.25 V) - extends battery life in portable instrumentation and field-deployable sensors. |
Applications
| Industrial Motor Control | Energy Metering |
|---|---|
Use Scenario: Real-time measurement of three-phase current and DC bus voltage in servo drives and variable-frequency inverters. IC Role / Device Role / Timing Role: Simultaneously samples two current-sense channels (e.g., IA and IB) with sub-2 μs inter-channel skew to reconstruct instantaneous torque and flux vectors. Use Value: Enables vector control algorithms requiring phase-aligned inputs; eliminates need for external sample-hold circuits or dual ADC synchronization logic. |
Use Scenario: High-accuracy active/reactive power calculation in Class 0.2 smart electricity meters with anti-tampering features. IC Role / Device Role / Timing Role: Captures voltage and current waveforms synchronously across multiple phases using programmable ±10 V input range and on-chip reference stability. Use Value: Delivers 72 dB SNR and <±1 LSB INL to meet IEC 62053-22 accuracy requirements without factory recalibration. |
| Portable Test Equipment | Process Automation I/O Modules |
Use Scenario: Battery-powered handheld oscilloscopes and waveform analyzers requiring low power and wide dynamic range. IC Role / Device Role / Timing Role: Dual-channel acquisition engine with shutdown current of 320 nA - extends operating time between charges while supporting 500 kSPS burst capture. Use Value: Combines high-resolution sampling, integrated reference, and SPI interface to reduce component count and firmware complexity in embedded ARM-based instruments. |
Use Scenario: Modular PLC analog input cards handling mixed-signal sensor types (4–20 mA, ±10 V, thermocouple) in harsh factory environments. IC Role / Device Role / Timing Role: Front-end ADC for isolated channel pairs, leveraging ±16.5 V supply tolerance and −40°C to +85°C operation for DIN-rail mounted enclosures. Use Value: Simplifies analog front-end design with true bipolar support and high PSRR (>70 dB) against switching supply noise in industrial power supplies. |
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-5 | 14-bit resolution, 76 dB SNR, same pinout and timing - higher precision at identical speed and package. | Suitable where >12-bit ENOB is required for vibration analysis or high-fidelity audio test equipment. | Select AD7367BRUZ-5 when system accuracy budget demands <±0.5 LSB INL and improved SFDR over full bandwidth. |
| ADS8684IPWR | 16-bit, 500 kSPS, single-supply (5 V), integrated PGA and reference - no ±VSS rail needed, but lacks true bipolar input without external circuitry. | Better suited for cost-sensitive, single-supply industrial controllers where ±10 V inputs are conditioned externally. | Choose ADS8684IPWR only if board space allows external signal conditioning and system design avoids dual high-voltage supplies. |
Compared with AD7366BRUZ-5, AD7367BRUZ-5 offers 2-bit higher resolution and 4 dB better SNR at identical speed and footprint, while ADS8684IPWR trades bipolar input simplicity for integrated PGA flexibility and lower supply complexity - neither is pin-compatible, but both address overlapping industrial data acquisition use cases.
Availability
AD7366BRUZ-5 is available at Aetrix Electronics and suitable for industrial motor control, energy metering, and portable test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for AD7366BRUZ-5 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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7366/AD7367 family was designed specifically for high-accuracy, simultaneous dual-channel data acquisition in industrial automation and power electronics - emphasizing true bipolar input, iCMOS® high-voltage integration, and SPI-compatible timing.
FAQ
What input voltage ranges does the AD7366BRUZ-5 support?
The AD7366BRUZ-5 supports three programmable analog input ranges via RANGE0 and RANGE1 pins: ±10 V, ±5 V, and 0 V to +10 V. When an external 3 V reference is applied to DCAPA/DCAPB and VDD/VSS are set to ±12 V minimum, it also accepts true bipolar ±12 V inputs. All ranges maintain 12-bit no-missing-codes performance and high input impedance (≥250 kΩ at 500 kSPS).
How does the AD7366BRUZ-5 achieve simultaneous sampling across two channels?
The AD7366BRUZ-5 uses two independent track-and-hold amplifiers and SAR ADC cores that share a common CNVST trigger. A falling edge on CNVST initiates hold mode in both T/H circuits simultaneously, ensuring identical sampling instants for VA1/VA2 and VB1/VB2. Conversion completes in 1.25 μs, and results appear concurrently on DOUTA and DOUTB.
Can the AD7366BRUZ-5 operate with only a single positive supply?
No. The AD7366BRUZ-5 requires separate high-voltage analog supplies: VDD (positive, +5 V to +16.5 V) and VSS (negative, −16.5 V to −5 V) to support its true bipolar input architecture. AVCC and DVCC are low-voltage digital/analog core supplies (4.75–5.25 V). Omitting VSS disables bipolar operation and risks device damage if analog inputs exceed AGND.
What is the role of the REFSEL pin on the AD7366BRUZ-5?
REFSEL selects the reference source: logic high enables the internal 2.5 V ±0.2% reference, requiring DCAPA/DCAPB to be connected to 680 nF decoupling capacitors; logic low disables the internal reference and allows external 2.5–3.0 V references to be applied directly to DCAPA/DCAPB. This flexibility supports systems needing tighter reference stability or custom scaling.
Does the AD7366BRUZ-5 support SPI mode 3 (CPOL = 1, CPHA = 1)?
Yes. The AD7366BRUZ-5 is SPI-/QSPI-/MICROWIRE-/DSP-compatible and supports all standard SPI modes. Its serial interface clocks data on the falling edge of SCLK (CPHA = 0), and CS must be low before SCLK starts. The device is not sensitive to CPOL polarity because it samples on the falling edge regardless of idle state - confirming compatibility with SPI mode 0 and mode 3 configurations.
AD7366BRUZ-5 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):
- 500k
- 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-5 FAQ
1.How can I place an order for AD7366BRUZ-5 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7366BRUZ-5 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-5 reliable?
The price and inventory of AD7366BRUZ-5 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7366BRUZ-5 is usually 5 days.
3.What payment methods are accepted for AD7366BRUZ-5?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7366BRUZ-5 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7366BRUZ-5?
AD7366BRUZ-5 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7366BRUZ-5 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-5?
For technical support, including AD7366BRUZ-5 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7366BRUZ-5 requirements.
6.How does Aetrix verify that AD7366BRUZ-5 is sourced from the original manufacturer or authorized distributors?
All AD7366BRUZ-5 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-5 meets industry standards.
7.What is the process for return or replacement of AD7366BRUZ-5?
All AD7366BRUZ-5 units undergo pre-shipment inspection (PSI). If there is an issue with AD7366BRUZ-5, 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-5 part is unused and in its original packaging.
Return procedure for AD7366BRUZ-5:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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