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Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Analog Devices Inc. AD7768-1BCPZ-RL7

Name: AD7768-1BCPZ-RL7
Brand: Analog Devices Inc.
SKU: AD7768-1BCPZ-RL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AD7768-1BCPZ-RL7

Manufacturer:: Analog Devices Inc.

Category:: Analog to Digital Converters (ADC)

Package:: 28-WFQFN Exposed Pad, CSP

Datasheet:: AD7768-1BCPZ-RL7.pdf

Description:: IC ADC 24BIT SIGMA-DELTA 28LFCSP

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Product details

Overview

AD7768-1BCPZ-RL7 from Analog Devices is a single-channel, low-power, high-precision Σ-Δ analog-to-digital converter optimized for dynamic signal analysis in data acquisition systems. It delivers 108.5 dB typical dynamic range, ±1.1 ppm FSR INL, −120 dB THD, 24-bit resolution with no missing codes, and supports programmable ODR up to 1024 kSPS using sinc5 filtering - enabling high-fidelity ac/dc measurement in portable and isolated DAQ platforms.

For engineers reviewing the AD7768-1BCPZ-RL7 datasheet, AD7768-1BCPZ-RL7 pinout, AD7768-1BCPZ-RL7 application, or AD7768-1BCPZ-RL7 equivalent, key selection considerations include its configurable FIR/sinc filtering, 3 power modes (fast/median/low power), 28-lead LFCSP package, −40°C to +125°C operation, and support for both SPI and pin-control interfaces in precision measurement designs.

Technical Context

The AD7768-1BCPZ-RL7 integrates a Σ-Δ modulator with three digital filter paths: low-latency sinc5 (up to 1.024 MHz ODR), programmable sinc3 (with 50/60 Hz rejection), and low-ripple FIR (±0.005 dB passband ripple, DC–102.4 kHz). Its architecture enables simultaneous optimization of noise floor, group delay, and alias rejection across varying bandwidth/power trade-offs.

It features embedded analog functionality including precharge buffers on analog inputs and reference path, reducing external drive requirements; supports true bipolar analog supplies (AVDD1–AVSS = 5 V, AVDD2–AVSS = 2–5 V); and operates from a single 3.0 V rail in low-power mode. All filters support programmable decimation and CRC-protected digital interface diagnostics.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	24-bit with no missing codes - guarantees monotonicity and full code coverage for precision dc/ac measurements.
Dynamic Range	108.5 dB typical (FIR filter, 256 kSPS) - enables detection of small signals buried in noise, critical for vibration and EEG applications.
THD	−120 dB typical - ensures minimal harmonic distortion in audio testing and spectral analysis.
INL	±1.1 ppm of FSR - supports high-accuracy ratiometric measurements in industrial sensor conditioning.
ODR Range	1 kSPS to 1024 kSPS - selectable via decimation control to match system latency and bandwidth needs.
Power Modes	Fast (26.4–36.8 mW), Median (14.4–24.7 mW), Low Power (5.4–8.9 mW) - allows runtime adaptation to battery or thermal constraints.
Operating Temp	−40°C to +125°C - qualified for harsh environments including motor control and automotive condition monitoring.
Package	28-lead, 4 mm × 5 mm LFCSP - compact footprint with exposed pad for thermal performance in dense PCB layouts.

Pinout & Package

The AD7768-1BCPZ-RL7 is housed in a 28-lead, 4 mm × 5 mm lead frame chip scale package (LFCSP) with exposed thermal pad. Pin functions are defined per Analog Devices' Rev. B datasheet (pp. 16–17), supporting both pin-control and SPI configuration modes.

Pin/Terminal	Circuit Role	Design Meaning
AIN+	Differential analog input positive	Accepts buffered or unbuffered differential voltage; precharge buffer reduces input current to ±20 µA.
AIN−	Differential analog input negative	Paired with AIN+; common-mode range extends to AVSS and AVDD1 rails.
REFIN+	Reference voltage positive input	Supports 1 V to AVDD1–AVSS; internal precharge buffer lowers input current to ±20 nA.
REFIN−	Reference voltage negative input	Reference return; enables true bipolar or ratiometric configurations.
MCLK	Main clock input	Accepts 0.6–17 MHz external CMOS clock or crystal; determines maximum ODR and modulator frequency.
DRDY	Data ready indicator	Open-drain output signaling valid conversion result; synchronizes read timing in SPI or pin-control mode.
DOUT/RDY	Data output / RDY indicator	Configurable as serial data output (SPI) or additional RDY flag; supports 4-wire or 3-wire interface.
AVDD1, AVDD2	Analog supply rails	AVDD1–AVSS = 4.5–5.5 V (or 3 V in low-power mode); AVDD2–AVSS = 2–5.5 V - enables split-supply true bipolar operation.
IOVDD	Digital I/O supply	1.7–3.6 V logic interface supply; supports LV_BOOST for 1.8 V operation with enhanced drive strength.
RESET	Hardware reset input	Active-low asynchronous reset; minimum pulse width 100 µs; internal 1 kΩ pull-up.

Key Features

Feature	Design Value
Programmable digital filtering	Selectable sinc5 (low latency), sinc3 (50/60 Hz rejection), or low-ripple FIR (±0.005 dB passband) - eliminates need for external anti-aliasing filters in many applications.
Three-tier power scaling	Fast/Median/Low Power modes adjust bandwidth and dissipation independently - e.g., 110.8 kHz BW at 36.8 mW (FIR) or 13.9 kHz at 6.75 mW - enabling adaptive energy management.
Embedded analog buffering	Precharge buffers on AIN and REFIN reduce input current by >90% vs. unbuffered operation - simplifies front-end amplifier selection and improves SNR stability.
Comprehensive diagnostics	On-chip CRC checks for interface, memory map, and fuse; temperature monitoring; and ADC self-test - reduces validation effort in safety-critical DAQ systems.
Flexible interface control	Pin-configurable operation (no firmware required) or SPI register access - supports rapid prototyping and field reconfiguration without host processor dependency.

Applications

Sound & Vibration Analysis	Clinical Biopotential Monitoring
Use Scenario: Capturing broadband acoustic emissions from rotating machinery for predictive maintenance and fault signature analysis. IC Role / Device Role / Timing Role: Primary high-resolution ADC digitizing conditioned piezoelectric sensor outputs with synchronized sampling and low-latency sinc3 filtering for real-time 50/60 Hz line rejection. Use Value: 108.5 dB dynamic range resolves micro-vibration harmonics; FIR filter's ±0.005 dB passband ripple preserves amplitude fidelity across 0–102.4 kHz analysis band.	Use Scenario: High-fidelity acquisition of EEG, EMG, and ECG signals in portable diagnostic devices requiring low power and medical-grade accuracy. IC Role / Device Role / Timing Role: Precision front-end ADC converting low-amplitude biopotential signals with integrated reference buffering and low-offset error (±30 µV) for stable baseline tracking. Use Value: ±1.1 ppm INL and −120 dB THD ensure accurate waveform morphology; low-power mode (6.75 mW) extends battery life without compromising diagnostic resolution.
Modular USB/PXI DAQ	Industrial Control Loop Feedback
Use Scenario: Channel-isolated, USB-connected DAQ modules for lab and field test equipment requiring flexible sample rates and high channel density. IC Role / Device Role / Timing Role: Reusable platform ADC providing consistent 24-bit performance across multiple sensor types (strain, thermocouple, accelerometer) with programmable ODR and digital filter selection. Use Value: Single 28-lead LFCSP footprint supports scalable multi-channel designs; SPI interface enables seamless integration with FPGA-based USB/PXI controllers.	Use Scenario: Real-time position/velocity feedback in servo drives where fast loop closure demands sub-10 µs latency and immunity to 50/60 Hz interference. IC Role / Device Role / Timing Role: Low-latency sinc5 ADC path (1.024 MHz ODR) feeding FPGA-based PID controller; sinc3 mode used for secondary current sensing with line-frequency rejection. Use Value: <3/ODR group delay in sinc5 mode enables <1 µs effective latency at 1 MSPS; built-in 50/60 Hz rejection eliminates need for external notch filters.

Sound & Vibration Analysis

Clinical Biopotential Monitoring

Use Scenario: Capturing broadband acoustic emissions from rotating machinery for predictive maintenance and fault signature analysis.

IC Role / Device Role / Timing Role: Primary high-resolution ADC digitizing conditioned piezoelectric sensor outputs with synchronized sampling and low-latency sinc3 filtering for real-time 50/60 Hz line rejection.

Use Value: 108.5 dB dynamic range resolves micro-vibration harmonics; FIR filter's ±0.005 dB passband ripple preserves amplitude fidelity across 0–102.4 kHz analysis band.

Use Scenario: High-fidelity acquisition of EEG, EMG, and ECG signals in portable diagnostic devices requiring low power and medical-grade accuracy.

IC Role / Device Role / Timing Role: Precision front-end ADC converting low-amplitude biopotential signals with integrated reference buffering and low-offset error (±30 µV) for stable baseline tracking.

Use Value: ±1.1 ppm INL and −120 dB THD ensure accurate waveform morphology; low-power mode (6.75 mW) extends battery life without compromising diagnostic resolution.

Modular USB/PXI DAQ

Industrial Control Loop Feedback

Use Scenario: Channel-isolated, USB-connected DAQ modules for lab and field test equipment requiring flexible sample rates and high channel density.

IC Role / Device Role / Timing Role: Reusable platform ADC providing consistent 24-bit performance across multiple sensor types (strain, thermocouple, accelerometer) with programmable ODR and digital filter selection.

Use Value: Single 28-lead LFCSP footprint supports scalable multi-channel designs; SPI interface enables seamless integration with FPGA-based USB/PXI controllers.

Use Scenario: Real-time position/velocity feedback in servo drives where fast loop closure demands sub-10 µs latency and immunity to 50/60 Hz interference.

IC Role / Device Role / Timing Role: Low-latency sinc5 ADC path (1.024 MHz ODR) feeding FPGA-based PID controller; sinc3 mode used for secondary current sensing with line-frequency rejection.

Use Value: <3/ODR group delay in sinc5 mode enables <1 µs effective latency at 1 MSPS; built-in 50/60 Hz rejection eliminates need for external notch filters.

Equivalent & Alternatives

The following parts are listed as comparable options for similar precision sigma-delta ADC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
AD7768BCPZ-RL7	8-channel simultaneously sampling version; identical per-channel specs but higher total power (140 mW typical) and larger 64-lead LFCSP package.	Suitable for multi-sensor synchronized acquisition (e.g., vibration array, power quality analyzers); not drop-in compatible due to pin count and layout.	Select AD7768BCPZ-RL7 only when true simultaneous sampling across ≥2 channels is required; AD7768-1BCPZ-RL7 offers lower cost, smaller size, and reduced power for single-channel DAQ.
ADS131M08IPBSR	8-channel, 24-bit delta-sigma ADC from TI; 108 dB DR, 64 kSPS max ODR, SPI-only interface, no pin-control mode; consumes 12.5 mW at 32 kSPS.	Targeted at energy metering and isolated current sensing; lacks sinc3 50/60 Hz rejection and low-ripple FIR option; requires external reference.	Choose ADS131M08IPBSR for cost-sensitive, multi-channel metering with fixed 32 kSPS operation; AD7768-1BCPZ-RL7 provides superior flexibility in filter selection, latency control, and power scaling.

Compared with AD7768BCPZ-RL7 and ADS131M08IPBSR, the AD7768-1BCPZ-RL7 uniquely balances single-channel precision, ultra-low latency (sinc5), programmable line rejection (sinc3), and three-tier power scaling - making it optimal for portable, isolated, or thermally constrained DAQ where configurability and analog integration matter more than channel count.

Availability

AD7768-1BCPZ-RL7 is available at Aetrix Electronics and suitable for sound and vibration analysis, clinical biopotential monitoring, and modular USB/PXI DAQ requiring stable component supply, long-term lifecycle support, and traceable sourcing for industrial and medical electronics programs.

Supply support for AD7768-1BCPZ-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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets with precision data conversion and power management solutions.

The AD7768-1BCPZ-RL7 belongs to Analog Devices' high-precision Σ-Δ ADC product line, designed specifically for dynamic signal analysis in portable, isolated, and platform-based data acquisition systems demanding both ac fidelity and dc accuracy.

FAQ

What is the maximum output data rate (ODR) supported by the AD7768-1BCPZ-RL7?

The AD7768-1BCPZ-RL7 supports up to 1024 kSPS using the sinc5 digital filter with a 16.384 MHz MCLK. This highest-speed mode achieves 52.224 kHz input bandwidth and 26.4 mW power consumption. Lower ODRs are available via programmable decimation for FIR and sinc3 filters, down to 1 kSPS in low-power mode - all configurable without changing hardware.

Does the AD7768-1BCPZ-RL7 support 50 Hz and 60 Hz line frequency rejection?

Yes, the AD7768-1BCPZ-RL7 implements fully programmable sinc3 filtering that enables precise 50 Hz or 60 Hz rejection. When configured for sinc3 with appropriate decimation, the device achieves complete settling within 60 ms for 50 Hz rejection, making it ideal for industrial sensor measurements in noisy AC-powered environments without external notch filters.

Can the AD7768-1BCPZ-RL7 operate from a single 3.0 V supply?

Yes, the AD7768-1BCPZ-RL7 supports single-rail 3.0 V operation exclusively in low-power mode, where AVDD1, AVDD2, and IOVDD are all supplied from the same 3.0 V source. This configuration delivers 13.9 kHz bandwidth and 6.75 mW power consumption - ideal for battery-powered portable DAQ and wearable medical devices.

What digital interface options does the AD7768-1BCPZ-RL7 provide?

The AD7768-1BCPZ-RL7 supports two independent interface modes: pin-control (hardware-configured operation with no SPI required) and SPI (full register access for dynamic reconfiguration). Both modes use the same DOUT/RDY pin for data output or RDY indication, and include CRC protection on serial transactions to ensure data integrity in electrically noisy environments.

How does the AD7768-1BCPZ-RL7 reduce external analog design complexity?

The AD7768-1BCPZ-RL7 integrates precharge buffers on both analog inputs and the reference path, reducing input current to ±20 µA (AIN) and ±20 nA (REFIN). This eliminates the need for high-drive external op-amps, simplifies anti-aliasing filter design, and improves common-mode rejection - directly lowering bill-of-materials and layout risk in precision measurement systems.

AD7768-1BCPZ-RL7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 28-WFQFN Exposed Pad, CSP

Packaging:: Tape & Reel (TR)

Product Status:: Active

Number of Bits:: 24

Sampling Rate (Per Second):: 1.024M

Number of Inputs:: 1

Input Type:: Differential, Pseudo-Differential

Data Interface:: Serial, SPI

Configuration:: ADC

Ratio - S/H:ADC:: 0:1

Number of A/D Converters:: 1

Architecture:: Sigma-Delta

Reference Type:: External

Voltage - Supply, Analog:: 2V ~ 5.5V

Voltage - Supply, Digital:: -

Features:: Simultaneous Sampling

Operating Temperature:: -40°C ~ 125°C

Supplier Device Package:: 28-LFCSP (5x4)

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

AD7768-1BCPZ-RL7 FAQ

1.How can I place an order for AD7768-1BCPZ-RL7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AD7768-1BCPZ-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 AD7768-1BCPZ-RL7 reliable?

The price and inventory of AD7768-1BCPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7768-1BCPZ-RL7 is usually 5 days.

3.What payment methods are accepted for AD7768-1BCPZ-RL7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7768-1BCPZ-RL7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AD7768-1BCPZ-RL7?

AD7768-1BCPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AD7768-1BCPZ-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 AD7768-1BCPZ-RL7?

For technical support, including AD7768-1BCPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7768-1BCPZ-RL7 requirements.

6.How does Aetrix verify that AD7768-1BCPZ-RL7 is sourced from the original manufacturer or authorized distributors?

All AD7768-1BCPZ-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 AD7768-1BCPZ-RL7 meets industry standards.

7.What is the process for return or replacement of AD7768-1BCPZ-RL7?

All AD7768-1BCPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7768-1BCPZ-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 AD7768-1BCPZ-RL7 part is unused and in its original packaging.

Return procedure for AD7768-1BCPZ-RL7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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