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Analog Devices Inc. AD2S83IP-REEL
- Part No.:
- AD2S83IP-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Sensor and Detector Interfaces
- Package:
- 44-LCC (J-Lead)
- Datasheet:
-
AD2S83IP-REEL.pdf
- Description:
- IC R/D CONV TRACKING 44PLCC T/R
- Quantity:
- Payment:
- Shipping:
Inventory:972
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Product details
Overview
AD2S83IP-REEL from Analog Devices is a monolithic, user-configurable resolver-to-digital converter supporting 10-, 12-, 14-, or 16-bit resolution with up to 1040 rps max tracking rate at 10-bit mode, ±8 V velocity output, and ratiometric tracking conversion for high-noise industrial servo positioning systems.
For engineers reviewing the AD2S83IP-REEL datasheet, AD2S83IP-REEL pinout, AD2S83IP-REEL application, or AD2S83IP-REEL equivalent, this page delivers verified technical context, exact pin functions, resolution-dependent dynamic performance, velocity linearity (±0.25% FSR), and real-world axis control use cases - all grounded in Analog Devices' Rev. E specification.
Technical Context
The AD2S83IP-REEL implements a Type 2 servo loop using phase-sensitive detection, integrator-based error correction, and a voltage-controlled oscillator (VCO) to achieve continuous ratiometric tracking without conversion delay. Its closed-loop bandwidth and max tracking rate are set externally via R/C networks on pins R4, R6, C4, C5, and R5.
Resolution selection (10/12/14/16 bits) is controlled by SC1/SC2 logic states, directly scaling integrator gain and VCO velocity output: e.g., 10-bit mode yields 130 rps/V dc scaling and 1040 rps max tracking, while 16-bit mode reduces scaling to 2.03 rps/V dc and max tracking to 16.25 rps.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | User-selectable 10-, 12-, 14-, or 16-bit natural binary output via SC1/SC2 pins |
| Max Tracking Rate | 1040 rps at 10-bit; 260 rps at 12-bit; 65 rps at 14-bit; 16.25 rps at 16-bit - defines mechanical speed limit before loss of lock |
| Velocity Output Linearity | ±0.25% FSR (0–500 kHz) - enables tachogenerator replacement in servo loop stabilization |
| Angular Accuracy | 8 arc minutes - worst-case static position error over –40°C to +85°C operating range |
| Reference Input Range | 0 Hz to 20,000 Hz - supports variable-frequency resolver excitation without external oscillator |
| Supply Voltages | ±12 V dc (±5%) analog; +5 V dc (±10%) logic - requires separate decoupling per Analog Devices layout guidelines |
| Package | 44-lead PLCC (P-44A) - surface-mount, industrial-grade thermal and mechanical robustness |
Pinout & Package
AD2S83IP-REEL is housed in a 44-lead Plastic Leaded Chip Carrier (PLCC, package option P-44A), with exposed pad not electrically connected. Pin 1 identifier located at top-left corner (viewed from top); pins numbered counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | DEMOD O/P | Phase-sensitive detector output - proportional to angular error; used for built-in-test or loop monitoring |
| 2 | REFERENCE I/P | Resolver excitation reference input - accepts 1–8 V pk, 0–20 kHz sine/square/triangle waveforms |
| 4, 7 | COS / SIN | Differential resolver signal inputs - require 2.0 V rms ±10%; tolerate ±10° phase shift vs. reference |
| 8, 39 | +VS / –VS | Analog power supplies - ±12 V dc ±5%; must be decoupled locally with 100 nF ceramic + 10 µF tantalum |
| 10–25 | DB1–DB16 | 3-state parallel data outputs - bidirectional natural binary; BYTE SELECT configures MSB/LSB byte access |
| 26 | +VL | Logic supply - +5 V dc ±10%; powers ENABLE, INHIBIT, BYTE SELECT, SC1/SC2, DATA LOAD |
| 27 | ENABLE | Output driver control - logic LO enables DB1–DB16; logic HI places outputs in high-impedance state |
| 28 | BYTE SELECT | Data bus byte routing - logic HI routes MSB (DB1–DB8); logic LO routes LSB (DB1–DB8) |
| 30 | INHIBIT | Latch control - logic LO freezes output latches; does not halt internal tracking loop |
| 32–33 | SC2–SC1 | Resolution configuration - 00=10-bit, 01=12-bit, 10=14-bit, 11=16-bit |
| 34 | DATA LOAD | Counter preload - logic LO loads DB1–DB16 into internal 16-bit up/down counter |
| 36 | BUSY | Tracking status indicator - TTL-level pulse during LSB transitions; confirms data instability |
| 37 | DIRECTION | Rotation sense - logic HI = increasing angle (clockwise); logic LO = decreasing angle (counterclockwise) |
| 38 | RIPPLE CLOCK | Revolution/pitch marker - positive edge on full carry (all 1s ↔ all 0s); unaffected by INHIBIT |
Key Features
| Feature | Design Value |
|---|---|
| Ratiometric tracking conversion | Eliminates need for stable reference oscillator; maintains accuracy despite resolver signal amplitude drift or long cable runs |
| User-configurable resolution & dynamics | External R/C network (R4, R6, C4, C5, R5) sets bandwidth, tracking rate, and velocity scaling per application requirements |
| Integrated velocity output | ±8 V dc analog signal with ±0.25% FSR linearity replaces mechanical tachogenerators in servo speed control loops |
| Industrial temperature operation | Specified for –40°C to +85°C ambient - validated across full range for angular accuracy, velocity linearity, and tracking stability |
| Resolver interface robustness | Tolerates 10% harmonic distortion, ±10° signal-reference phase shift, and 2 V rms ±10% SIN/COS input levels |
Applications
| DC and AC Servo Motor Control | Robotics Joint Positioning |
|---|---|
Use Scenario: Closed-loop position and velocity feedback in industrial servo drives controlling permanent magnet or induction motors. IC Role / Device Role / Timing Role: Resolver-to-digital converter providing real-time shaft angle and analog speed signal to motion controller FPGA or MCU. Use Value: Enables precise torque and speed regulation without mechanical tachometer; ratiometric design ensures immunity to resolver cable length and noise. |
Use Scenario: High-reliability angular sensing in robotic arm joints requiring >12-bit resolution and continuous tracking under acceleration. IC Role / Device Role / Timing Role: Primary position encoder interfacing with resolver on each joint motor; BUSY and RIPPLE CLOCK synchronize motion sequencing. Use Value: 14-bit mode delivers 1.3 arc minute resolution; DIRECTION output provides instantaneous rotation sense for path planning algorithms. |
| Numerical Control of Machine Tools | Axis Control in Precision Stages |
Use Scenario: Feedback element in CNC lathe or milling machine spindles and linear axes where thermal stability and EMI resilience are critical. IC Role / Device Role / Timing Role: Resolver interface IC converting analog resolver signals to parallel digital words for real-time interpolation in motion controller. Use Value: 8 arc minute angular accuracy maintained across –40°C to +85°C; HF filter (R1/R2/C1/C2) suppresses brushless drive noise. |
Use Scenario: Position feedback in semiconductor lithography stages or optical alignment platforms requiring sub-arc-minute repeatability. IC Role / Device Role / Timing Role: High-resolution R/D converter delivering 16-bit output synchronized via BYTE SELECT and ENABLE to 16-bit data bus. Use Value: 16-bit mode achieves 0.0055° resolution; INHIBIT allows deterministic latch timing independent of tracking activity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar resolver-to-digital conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD2S80AJPZ-REEL | 10-bit fixed resolution; no SC1/SC2 configuration; lower max tracking rate (312 rps); ±10 V velocity output | Suitable only for cost-sensitive, fixed-performance servo systems without resolution flexibility | Select when system requires simpler design, lower bandwidth, and no need for 12+/14+/16-bit modes |
| AD2S1210ASTZ | 12-/14-/16-bit SPI interface; integrated oscillator; 3.3 V logic; higher integration but no parallel bus or BYTE SELECT | Preferred for modern microcontroller-based designs needing digital interface, smaller footprint, and reduced external components | Choose when migrating from parallel bus to SPI, requiring embedded reference generation, or targeting space-constrained PCBs |
Compared with AD2S83IP-REEL, AD2S80AJPZ-REEL offers lower complexity but sacrifices resolution configurability and tracking speed, while AD2S1210ASTZ provides modern serial interfacing and integration at the expense of parallel bus compatibility and external component flexibility.
Availability
AD2S83IP-REEL is available at Aetrix Electronics and suitable for DC servo motor control, robotics joint positioning, and numerical control of machine tools requiring stable component supply, long-term industrial lifecycle support, and traceable sourcing.
Supply support for AD2S83IP-REEL 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, serving industrial, automotive, communications, and aerospace markets.
The AD2S83IP-REEL belongs to Analog Devices' precision resolver interface product line, designed specifically for high-reliability, noise-immune angular position feedback in demanding industrial motion control systems.
FAQ
What resolution options does the AD2S83IP-REEL support, and how are they selected?
The AD2S83IP-REEL supports 10-, 12-, 14-, and 16-bit resolution, selected via logic states on SC1 and SC2 pins: 00 = 10-bit, 01 = 12-bit, 10 = 14-bit, 11 = 16-bit. This selection directly scales internal integrator gain and VCO velocity output, and must be made before dynamic operation begins. The AD2S83IP-REEL datasheet specifies corresponding max tracking rates (e.g., 1040 rps at 10-bit) and velocity scaling (e.g., 130 rps/V dc).
How does the AD2S83IP-REEL achieve noise immunity in long-cable resolver applications?
The AD2S83IP-REEL uses ratiometric tracking conversion, which depends only on the ratio of SIN/COS amplitudes-not absolute levels-making it inherently tolerant of signal attenuation, common-mode noise, and long cable runs. Its phase-sensitive detector rejects quadrature and non-coherent interference, and the recommended HF filter (R1/R2/C1/C2) further suppresses switch-mode power supply noise. These features ensure reliable operation in noisy industrial environments where the AD2S83IP-REEL is deployed.
What is the function of the BUSY and RIPPLE CLOCK outputs on the AD2S83IP-REEL?
BUSY pulses indicate LSB-level changes in the internal counter - each pulse confirms data instability during tracking, with width 150–350 ns. RIPPLE CLOCK generates a positive edge on full carry (all 1s ↔ all 0s), marking completed revolutions or pitches. Both signals remain active regardless of INHIBIT state, enabling external counters to track motion without disrupting the AD2S83IP-REEL's internal loop. Their timing is fully specified in the AD2S83IP-REEL datasheet.
Can the AD2S83IP-REEL replace a mechanical tachogenerator, and what specifications support that?
Yes - the AD2S83IP-REEL provides a precision ±8 V dc analog velocity output with ±0.25% FSR linearity (0–500 kHz) and reversion error <±1.5% O/P, meeting or exceeding tachogenerator performance in servo loop stabilization. Its velocity scaling is resolution-dependent (e.g., 130 rps/V dc at 10-bit), and the output is buffered-capable per Analog Devices' layout guidance. This eliminates mechanical wear, inertia, and calibration drift associated with traditional tachogenerators in AD2S83IP-REEL-based systems.
What are the critical power supply and grounding requirements for stable AD2S83IP-REEL operation?
The AD2S83IP-REEL requires ±12 V dc (±5%) analog supplies (+VS/–VS) and +5 V dc (±10%) logic supply (+VL), each decoupled locally with 100 nF ceramic + 10 µF tantalum capacitors. ANALOG GND and DIGITAL GND must be connected externally near the device; SIGNAL GND and ANALOG GND are internally tied. Resolver cables should use individually screened twisted pairs, and SIN/COS/REF grounds must join only at the AD2S83IP-REEL's SIGNAL GND pin to minimize crosstalk.
AD2S83IP-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- 44-LCC (J-Lead)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- R/D Converter
- Input Type:
- Parallel
- Output Type:
- Digital
- Current - Supply:
- 30 mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-PLCC (16.59x16.59)
AD2S83IP-REEL FAQ
1.How can I place an order for AD2S83IP-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD2S83IP-REEL 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 AD2S83IP-REEL reliable?
The price and inventory of AD2S83IP-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD2S83IP-REEL is usually 5 days.
3.What payment methods are accepted for AD2S83IP-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD2S83IP-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD2S83IP-REEL?
AD2S83IP-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD2S83IP-REEL 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 AD2S83IP-REEL?
For technical support, including AD2S83IP-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD2S83IP-REEL requirements.
6.How does Aetrix verify that AD2S83IP-REEL is sourced from the original manufacturer or authorized distributors?
All AD2S83IP-REEL 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 AD2S83IP-REEL meets industry standards.
7.What is the process for return or replacement of AD2S83IP-REEL?
All AD2S83IP-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD2S83IP-REEL, 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 AD2S83IP-REEL part is unused and in its original packaging.
Return procedure for AD2S83IP-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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