My Inquiry
My Account
Analog Devices Inc. AD7863BRZ-10
- Part No.:
- AD7863BRZ-10
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD7863BRZ-10.pdf
- Description:
- IC ADC 14BIT SAR 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,837
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD7863BRZ-10 from Analog Devices is a dual-channel, simultaneous-sampling 14-bit analog-to-digital converter with ±10 V input range, 5.2 μs conversion time, and single 5 V supply operation. It integrates two track-and-hold amplifiers, internal 2.5 V reference, and high-speed parallel interface - enabling phase-coherent acquisition in motor control feedback loops, power quality monitoring, and digital oscilloscope front-ends.
For engineers reviewing the AD7863BRZ-10 datasheet, AD7863BRZ-10 pinout, AD7863BRZ-10 application, or AD7863BRZ-10 equivalent, key selection criteria include simultaneous dual-channel sampling capability, aperture delay matching ≤350 ps, ±10 V overvoltage tolerance (±17 V), 175 kSPS throughput, and lead-compatible upgrade path from AD7862.
Technical Context
The AD7863BRZ-10 implements two independent successive approximation register (SAR) ADCs sharing a common CONVST trigger and BUSY status signal. Each channel (A or B) comprises two analog inputs (e.g., VA1/VA2) selected via A0, with simultaneous hold and conversion preserving inter-channel phase integrity. Internal 2.5 V reference drives both ADCs, and output coding is twos complement.
Conversion timing is governed by an internal laser-trimmed oscillator; Mode 1 delivers 5.2 μs conversion time with continuous operation, while Mode 2 adds wake-up latency for 10.0 μs total cycle time. Track-and-hold acquisition time is 0.5 μs, and analog input resistance is 9 kΩ (AD7863-10 variant).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 14-bit - guarantees no missing codes; supports precise amplitude and phase measurement of industrial signals. |
| Sampling Rate | 175 kSPS - enables full Nyquist bandwidth up to 87.5 kHz for anti-aliasing filter design. |
| Input Range | ±10 V - matches standard industrial sensor outputs and PLC I/O levels without external scaling. |
| Conversion Time | 5.2 μs - defines minimum inter-conversion interval; supports real-time closed-loop control at ≤175 kHz. |
| Aperture Delay Matching | ≤350 ps - ensures sub-degree phase error between VA1/VA2 or VB1/VB2 for coherent multi-signal analysis. |
| SNR (fIN = 80 kHz) | 77 dB min - corresponds to ~12.5 effective bits; sufficient for high-fidelity waveform capture in test equipment. |
| Power Dissipation | 94.5 mW max (70 mW typical) - enables integration into thermally constrained embedded systems with minimal heatsinking. |
| Overvoltage Tolerance | ±17 V on analog inputs - protects against transients in industrial environments without external clamping. |
Pinout & Package
AD7863BRZ-10 is housed in a 28-lead SOIC_W (Wide-body Small Outline IC) package, RoHS-compliant, with 0.6 mm lead pitch and 17.9 mm × 7.6 mm body dimensions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VA1, VA2, VB1, VB2 | Analog Input Pairs (Channel A/B) | Four differential-capable inputs grouped as two simultaneously sampled channels; ±10 V range with 9 kΩ input impedance. |
| CONVST | Convert Start Input | Falling-edge-triggered global sample command; initiates simultaneous hold and conversion on both channels. |
| BUSY | Conversion Status Output | Active-high open-drain signal indicating conversion in progress; used for handshaking with host processor. |
| A0 | Multiplexer Select | Selects active channel pair: low = VA1/VA2, high = VB1/VB2; determines read sequence order for DB[13:0]. |
| CS, RD | Parallel Interface Controls | Standard TTL-compatible chip select and read strobe; enable 14-bit data transfer via DB13–DB0 bus. |
| VREF | Reference Input/Output | 2.5 V nominal internal reference; can be overdriven by external precision source; ±10 mV error at 25°C. |
| AGND, DGND | Analog/Digital Grounds | Separate ground pins minimize noise coupling; require star-point connection to avoid ground loop errors. |
| VDD | Supply Voltage | Single 5.0 V ±5% supply powers analog and digital sections; decoupling (0.1 µF + 10 µF) required per datasheet. |
Key Features
| Feature | Design Value |
|---|---|
| Simultaneous dual-channel sampling | Preserves phase coherence between paired inputs (e.g., current/voltage in power metering), eliminating inter-channel skew. |
| Internal 2.5 V reference with ±10 mV accuracy | Eliminates need for external reference IC; reduces BOM count and layout area while maintaining gain stability across temperature. |
| 5.2 μs conversion time + 0.5 μs acquisition | Enables deterministic 175 kSPS throughput with predictable timing margins for real-time firmware scheduling. |
| ±17 V analog input overvoltage protection | Withstands industrial transients without latch-up or parametric shift; avoids need for external TVS diodes in many applications. |
| Twos complement output coding | Direct compatibility with signed arithmetic in DSPs and microcontrollers; simplifies software handling of bipolar ±10 V signals. |
| Power-down mode (105 μW max) | Reduces idle power by >99% vs. active mode; suitable for battery-backed data loggers requiring periodic burst sampling. |
Applications
| Motor Control Feedback | Power Quality Analyzer |
|---|---|
|
Use Scenario: Real-time acquisition of phase current and bus voltage in vector-controlled inverters. IC Role / Device Role / Timing Role: Simultaneously samples VA1 (current sense) and VA2 (DC-link voltage) with <350 ps aperture skew to preserve torque calculation accuracy. Use Value: Enables accurate field-oriented control (FOC) without software interpolation or hardware delay compensation. |
Use Scenario: Monitoring harmonics, THD, and interharmonics in 3-phase distribution systems. IC Role / Device Role / Timing Role: Dual-channel synchronized sampling captures voltage and current waveforms with phase-aligned timestamps for IEEE 519 compliance analysis. Use Value: Delivers 77 dB SNR and −82 dB THD to resolve 13th harmonic (650 Hz @ 50 Hz fundamental) with <0.1% amplitude error. |
| Digital Oscilloscope Front-End | Industrial Data Acquisition System |
|
Use Scenario: High-speed transient capture in benchtop or portable scopes with dual-channel display. IC Role / Device Role / Timing Role: Provides 175 kSPS simultaneous sampling on two channels using internal clock; BUSY signal synchronizes FPGA-based memory write. Use Value: Eliminates need for external clock distribution or interleaving logic; reduces PCB layer count and jitter-induced artifacts. |
Use Scenario: Multi-sensor monitoring in factory automation (e.g., vibration + temperature + pressure). IC Role / Device Role / Timing Role: Interfaces to isolated analog sensors via ±10 V inputs; CS/RD handshake integrates cleanly with ARM Cortex-M4 MCU GPIOs. Use Value: Single-supply 5 V operation and 70 mW power simplify power architecture; SOIC_W package supports automated assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel simultaneous-sampling ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7862ARZ | 12-bit resolution, same 28-lead SOIC_W package, identical pinout and interface; lacks internal reference - requires external 2.5 V source. | Lower resolution limits dynamic range in high-precision power measurement; suitable where cost sensitivity outweighs 14-bit requirement. | Select AD7862ARZ only if 12-bit performance suffices and external reference infrastructure already exists. |
| ADS8556IPMR | 6-channel simultaneous-sampling, 16-bit resolution, SPI interface, 5 V supply; no internal reference; higher power (120 mW). | Supports more channels but requires serial interface redesign and external reference; better SNR (86 dB) for metrology-grade applications. | Choose ADS8556IPMR when expanding beyond two channels or requiring >14-bit ENOB; not drop-in compatible due to interface and pinout differences. |
Compared with AD7862ARZ and ADS8556IPMR, the AD7863BRZ-10 uniquely balances 14-bit precision, true simultaneous dual-channel operation, integrated reference, and parallel interface in a legacy-compatible SOIC package - making it optimal for upgrading existing AD7862-based designs without board rework.
Availability
AD7863BRZ-10 is available at Aetrix Electronics and suitable for motor control feedback, power quality monitoring, digital oscilloscope front-ends, and industrial data acquisition systems requiring stable component supply and long-term obsolescence management.
Supply support for AD7863BRZ-10 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.
The AD7863 belongs to Analog Devices' precision SAR ADC product line, designed specifically for applications demanding simultaneous multi-channel sampling, low power, and industrial-grade robustness - including energy metering, test instrumentation, and real-time control.
FAQ
What is the maximum analog input voltage the AD7863BRZ-10 can tolerate without damage?
The AD7863BRZ-10 supports ±17 V absolute maximum analog input voltage on VA1, VA2, VB1, and VB2 pins - exceeding its ±10 V operating range. This overvoltage protection prevents latch-up or permanent damage during transient events in industrial environments, eliminating the need for external clamping components in many cases. The specification is validated per Analog Devices' Absolute Maximum Ratings table.
How does the AD7863BRZ-10 achieve simultaneous sampling across two channels?
The AD7863BRZ-10 achieves true simultaneous sampling using two matched track-and-hold amplifiers triggered by a single CONVST falling edge. Both amplifiers enter hold mode at the same instant, capturing VA1/VA2 or VB1/VB2 concurrently. Aperture delay matching is guaranteed ≤350 ps, ensuring phase coherence critical for vector measurements. This architecture differs from multiplexed or interleaved sampling found in single-ADC devices.
Does the AD7863BRZ-10 require an external reference, or is one built in?
The AD7863BRZ-10 includes an internal 2.5 V reference accessible via the VREF pin, eliminating the need for an external reference in most applications. The internal reference has ±10 mV error at 25°C and 25 ppm/°C temperature coefficient. An external 2.5 V reference may be connected to VREF for improved accuracy, but the AD7863BRZ-10 operates fully functional with its internal source.
What is the function of the A0 pin on the AD7863BRZ-10?
The A0 pin on the AD7863BRZ-10 selects the active analog input channel pair before conversion initiation: when A0 is low, VA1 and VA2 are sampled; when A0 is high, VB1 and VB2 are sampled. This multiplexer control also determines read sequence - the first RD pulse after conversion returns data from VA1/VB1, and the second returns VA2/VB2. A0 must be stable prior to the CONVST falling edge.
Can the AD7863BRZ-10 operate from a single 5 V supply, and what are the power consumption implications?
Yes, the AD7863BRZ-10 operates from a single 5.0 V ±5% supply, consuming 94.5 mW maximum (70 mW typical) in normal Mode 1 operation. In Mode 2 (auto power-down), it draws just 105 μW maximum after conversion completes. This dual-mode capability supports both high-throughput real-time systems and ultra-low-power data loggers - all without requiring split or regulated analog/digital supplies.
AD7863BRZ-10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 14
- Sampling Rate (Per Second):
- 175k
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- 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:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7863BRZ-10 FAQ
1.How can I place an order for AD7863BRZ-10 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7863BRZ-10 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 AD7863BRZ-10 reliable?
The price and inventory of AD7863BRZ-10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7863BRZ-10 is usually 5 days.
3.What payment methods are accepted for AD7863BRZ-10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7863BRZ-10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7863BRZ-10?
AD7863BRZ-10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7863BRZ-10 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 AD7863BRZ-10?
For technical support, including AD7863BRZ-10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7863BRZ-10 requirements.
6.How does Aetrix verify that AD7863BRZ-10 is sourced from the original manufacturer or authorized distributors?
All AD7863BRZ-10 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 AD7863BRZ-10 meets industry standards.
7.What is the process for return or replacement of AD7863BRZ-10?
All AD7863BRZ-10 units undergo pre-shipment inspection (PSI). If there is an issue with AD7863BRZ-10, 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 AD7863BRZ-10 part is unused and in its original packaging.
Return procedure for AD7863BRZ-10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD7863BRZ-10 Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
