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Analog Devices Inc. AD7766BRUZ-1-RL7
- Part No.:
- AD7766BRUZ-1-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7766BRUZ-1-RL7.pdf
- Description:
- IC ADC 24BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,260
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Product details
Overview
AD7766BRUZ-1-RL7 from Analog Devices is a 24-bit, oversampled successive approximation register (SAR) analog-to-digital converter optimized for high-precision, low-power data acquisition. It delivers 109.5 dB dynamic range at 128 kSPS, consumes 15 mW, features ±6 ppm typical INL, and operates with 2.5 V analog/digital supplies and 5 V reference - enabling high-fidelity measurement in USB/PCI-based instrumentation systems.
For engineers reviewing the AD7766BRUZ-1-RL7 datasheet, AD7766BRUZ-1-RL7 pinout, AD7766BRUZ-1-RL7 application, or AD7766BRUZ-1-RL7 equivalent, key selection criteria include verified 128 kSPS output data rate, confirmed 16-lead TSSOP package mapping, validated differential input architecture with ±VREF+ full-scale range, and documented daisy-chain capability via SDI/SDO interface.
Technical Context
The AD7766BRUZ-1-RL7 implements an oversampled SAR core followed by a linear-phase, on-chip FIR filter with decimation-by-8 configuration. Its digital filter provides ±0.005 dB pass-band ripple and 100 dB stop-band attenuation, settling in 590 × tMCLK after reset or power-down.
It uses fully differential analog inputs (VIN+, VIN−), accepts 5 V reference voltage (VREF+), and supports flexible logic interfacing via VDRIVE (1.8 V–3.6 V). Synchronization and power-down are managed through the dual-function SYNC/PD pin, while daisy-chaining is enabled by dedicated SDI and SDO pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 24 bits, no missing codes - guarantees monotonicity and full-scale linearity without code gaps. |
| Output Data Rate | 128 kSPS - fixed decimation-by-8 mode enables real-time acquisition of wideband signals up to ~62.5 kHz. |
| Dynamic Range | 109.5 dB (typical, shorted inputs) - defines usable signal-to-noise floor for detecting microvolt-level changes atop large dc offsets. |
| THD | −112 dB (typical, 1 kHz full-scale tone) - ensures minimal harmonic distortion in precision ac signal capture. |
| INL | ±6 ppm (typical), ±15 ppm (max) - translates to < ±0.25 LSB error across full 24-bit range at room temperature. |
| Power Consumption | 15 mW (typical, 128 kSPS) - balances performance and thermal budget in space-constrained embedded systems. |
| Operating Temperature | −40°C to +105°C - qualified for industrial and medical environments requiring extended thermal stability. |
Pinout & Package
AD7766BRUZ-1-RL7 is housed in a 4.4 mm × 5 mm, 16-lead TSSOP package (RUZ suffix), with exposed pad for thermal enhancement and standard JEDEC MS-013AC footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (AVDD) | Analog power supply | +2.5 V rail for analog circuitry; must be decoupled locally to AGND to minimize noise coupling into conversion path. |
| 2 (VREF+) | Reference voltage input | 5 V external reference source; sets full-scale differential input range to ±5 V; requires local decoupling to REFGND. |
| 4 (VIN+), 5 (VIN−) | Differential analog inputs | Accept true differential signals up to ±VREF+; common-mode range centered at VREF+/2 ±5%; input capacitance = 22 pF. |
| 7 (SYNC/PD) | Synchronization/power-down control | Active-low input: falling edge initiates synchronization across multiple devices or enters ultra-low-power mode (<6 µA). |
| 10 (SDO), 15 (SDI) | Serial data output/input | 24-bit, twos-complement, MSB-first stream; SDI enables daisy-chain configuration for multi-ADC systems without additional GPIOs. |
| 12 (DRDY), 13 (SCLK), 16 (CS) | Data-ready, serial clock, chip select | DRDY falling edge signals valid conversion result; SCLK up to 1/t8 (≥25 MHz at VDRIVE=3.0 V); CS enables shared SDO bus operation. |
Key Features
| Feature | Design Value |
|---|---|
| Oversampled SAR architecture | Combines high-speed sampling (1.024 MHz MCLK) with digital filtering to achieve 24-bit resolution without external antialiasing filters. |
| On-chip linear-phase FIR filter | Provides 100 dB stop-band attenuation and ±0.005 dB pass-band ripple - eliminates need for external post-processing in vibration analysis applications. |
| Daisy-chain capability | Enables synchronized readout of multiple AD7766BRUZ-1-RL7 devices using single SCLK/CS lines - reduces PCB routing complexity in multi-channel DAQ systems. |
| Flexible logic interface (VDRIVE) | Supports 1.8 V–3.6 V I/O voltage independently from AVDD/DVDD - simplifies integration with mixed-voltage FPGA or microcontroller platforms. |
| Low temperature drift | Zero error drift = 15 nV/°C and gain error drift = 0.4 ppm/°C - maintains calibration integrity over industrial temperature range without frequent recalibration. |
Applications
| Vibration Analysis System | Portable Medical ECG Monitor |
|---|---|
|
Use Scenario: High-resolution capture of mechanical resonance signatures from accelerometers in predictive maintenance equipment. IC Role / Device Role / Timing Role: Primary ADC digitizing conditioned differential sensor outputs with 128 kSPS sustained throughput and low-latency DRDY signaling. Use Value: 109.5 dB dynamic range resolves sub-microstrain displacements amid high-amplitude background vibration, while 15 mW power enables battery-operated deployment. |
Use Scenario: Low-noise acquisition of biopotential signals in handheld ECG units with USB-powered host interface. IC Role / Device Role / Timing Role: Precision front-end ADC converting differential electrode inputs with integrated reference buffering and common-mode rejection. Use Value: ±6 ppm INL and −112 dB THD preserve diagnostic waveform fidelity; 2.5 V supply compatibility aligns with USB 5 V → LDO power tree. |
| USB-Based Test & Measurement Instrument | Industrial Process Monitoring Node |
|
Use Scenario: Compact benchtop data logger acquiring multi-sensor analog inputs (temperature, pressure, strain) via USB 2.0 host. IC Role / Device Role / Timing Role: High-accuracy ADC providing synchronized 24-bit samples to microcontroller USB stack with DRDY-driven interrupt timing. Use Value: Daisy-chain support allows 4-channel expansion using single SPI bus; 16-lead TSSOP footprint minimizes PCB area in cost-sensitive enclosures. |
Use Scenario: DIN-rail mounted controller monitoring analog field transmitters in harsh factory environments (−40°C to +105°C). IC Role / Device Role / Timing Role: Ruggedized ADC performing continuous dc-coupled measurements with guaranteed monotonicity and low drift over temperature. Use Value: −40°C to +105°C rating and 0.4 ppm/°C gain drift ensure long-term accuracy stability without active thermal compensation circuits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-resolution SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7765BRUZ | 156 kSPS, 112 dB dynamic range, 18-bit INL, same 16-lead TSSOP package but higher power (13 mW at 156 kSPS). | Targeted at higher-speed, slightly lower-resolution applications where latency matters more than ultimate SNR. | Select AD7765BRUZ when system requires >128 kSPS with relaxed dc accuracy; AD7766BRUZ-1-RL7 remains optimal for 128 kSPS with best-in-class 109.5 dB DR and 24-bit NMC. |
| AD7767BRUZ | 128 kSPS, 109.5 dB dynamic range, 18-bit INL, serial interface only - lacks daisy-chain SDI pin and has reduced dc specs (no 24-bit NMC guarantee). | Suitable for cost-sensitive, single-channel systems where daisy-chaining and guaranteed 24-bit monotonicity are not required. | Choose AD7767BRUZ only if board space and BOM cost outweigh need for multi-device synchronization and full 24-bit linearity assurance. |
Compared with AD7765BRUZ and AD7767BRUZ, AD7766BRUZ-1-RL7 uniquely delivers verified 24-bit no-missing-codes performance at 128 kSPS with daisy-chain support and lowest THD (−112 dB), making it the preferred choice for synchronized multi-channel, high-fidelity industrial DAQ designs.
Availability
AD7766BRUZ-1-RL7 is available at Aetrix Electronics and suitable for vibration analysis systems, portable medical monitors, USB-based test instruments, and industrial process monitoring nodes requiring stable component supply across production lifecycles.
Supply support for AD7766BRUZ-1-RL7 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 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 AD7766BRUZ-1-RL7 belongs to Analog Devices' precision sigma-delta and oversampled SAR ADC product line, designed specifically for ultralow-noise, high-dynamic-range data acquisition in resource-constrained embedded systems.
FAQ
What is the maximum output data rate supported by the AD7766BRUZ-1-RL7?
The AD7766BRUZ-1-RL7 supports a fixed output data rate of 128 kSPS, achieved via decimation-by-8 filtering of the 1.024 MHz main clock. This rate is not user-configurable - unlike AD7766-1 (64 kSPS) or AD7766-2 (32 kSPS), the AD7766BRUZ-1-RL7 variant is factory-set to this specific speed. The device maintains 109.5 dB dynamic range and 15 mW power consumption at this rate.
Does the AD7766BRUZ-1-RL7 require an external reference voltage?
Yes, the AD7766BRUZ-1-RL7 requires an external reference voltage applied to the VREF+ pin (Pin 2). The datasheet specifies a nominal 5 V reference, with acceptable range from 2.4 V to 5 V (or up to 2 × AVDD). No internal reference is provided; reference stability directly impacts gain accuracy and must be decoupled to REFGND (Pin 3) with low-ESR ceramic capacitors.
Can multiple AD7766BRUZ-1-RL7 devices be synchronized?
Yes, the AD7766BRUZ-1-RL7 supports hardware synchronization via its SYNC/PD pin (Pin 7). A synchronized falling edge on this pin triggers simultaneous conversion start across all connected devices, ensuring phase-aligned sampling for coherent multi-channel acquisition. This feature is essential for time-critical applications like vibration analysis and phased-array sensing.
What package type is used for the AD7766BRUZ-1-RL7?
The AD7766BRUZ-1-RL7 uses a 16-lead TSSOP package measuring 4.4 mm × 5 mm (RUZ suffix), with exposed thermal pad. It complies with JEDEC MO-137AA and is compatible with standard reflow profiles. The "-RL7" suffix indicates tape-and-reel packaging (750 units per reel), while "BRUZ" confirms the TSSOP-16 body and Pb-free/RoHS-compliant finish.
Is daisy-chaining supported on the AD7766BRUZ-1-RL7?
Yes, daisy-chaining is fully supported via dedicated SDI (Pin 15) and SDO (Pin 10) pins. In daisy-chain mode, the SDO of one AD7766BRUZ-1-RL7 connects to the SDI of the next, allowing sequential readout of conversion results using a single SPI bus. This eliminates the need for individual CS lines per device and reduces GPIO count in multi-ADC systems.
AD7766BRUZ-1-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 24
- Sampling Rate (Per Second):
- 64k
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- SPI
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.5V
- Voltage - Supply, Digital:
- 2.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7766BRUZ-1-RL7 FAQ
1.How can I place an order for AD7766BRUZ-1-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7766BRUZ-1-RL7 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 AD7766BRUZ-1-RL7 reliable?
The price and inventory of AD7766BRUZ-1-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7766BRUZ-1-RL7 is usually 5 days.
3.What payment methods are accepted for AD7766BRUZ-1-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7766BRUZ-1-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7766BRUZ-1-RL7?
AD7766BRUZ-1-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7766BRUZ-1-RL7 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 AD7766BRUZ-1-RL7?
For technical support, including AD7766BRUZ-1-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7766BRUZ-1-RL7 requirements.
6.How does Aetrix verify that AD7766BRUZ-1-RL7 is sourced from the original manufacturer or authorized distributors?
All AD7766BRUZ-1-RL7 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 AD7766BRUZ-1-RL7 meets industry standards.
7.What is the process for return or replacement of AD7766BRUZ-1-RL7?
All AD7766BRUZ-1-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7766BRUZ-1-RL7, 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 AD7766BRUZ-1-RL7 part is unused and in its original packaging.
Return procedure for AD7766BRUZ-1-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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