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Analog Devices Inc. 5962-8850502RA
- Part No.:
- 5962-8850502RA
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- -
- Datasheet:
-
5962-8850502RA.pdf
- Description:
- IC ADC 8BIT SAR 20CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,736
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Product details
Overview
5962-8850502RA from Analog Devices is a military-grade 8-bit successive approximation analog-to-digital converter (ADC) with integrated buried Zener reference, on-chip clock, comparator, and 3-state digital output buffers. It delivers ±1/2 LSB relative accuracy, supports unipolar (0 V to +10 V) and bipolar (–5 V to +5 V) input ranges, and achieves full conversion in ≤30 µs using +5 V and –12 V to –15 V supplies. It is deployed in precision data acquisition systems for avionics and ruggedized instrumentation.
For engineers reviewing the 5962-8850502RA datasheet, 5962-8850502RA pinout, 5962-8850502RA application, or 5962-8850502RA equivalent, key selection criteria include guaranteed no-missing-codes operation from –55°C to +125°C, MIL-STD-883 compliance, dual-supply tolerance, bipolar/unipolar mode configurability via Pin 16, and direct microprocessor bus interface without external latches or buffers.
Technical Context
The 5962-8850502RA implements successive approximation using integrated injection logic (I2L) and a laser-trimmed SiCr thin-film resistor ladder DAC. Its temperature-compensated buried Zener reference ensures stable full-scale calibration across –55°C to +125°C, with <±2 LSB full-scale error and <±1/2 LSB offset error in both unipolar and bipolar modes.
Conversion is initiated by the trailing edge of a ≥500 ns CONVERT pulse; DATA READY (DR) asserts within 1.5 µs after the leading edge to signal reset completion and deasserts upon conversion finish. The 8-bit current-output DAC balances input current through a 5 kΩ trimmed input resistor, enabling accurate digitization without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - guarantees discrete quantization steps of 39.06 mV per LSB in unipolar mode (0 V to +10 V). |
| Relative Accuracy | ±1/2 LSB - ensures monotonic transfer function with no missing codes over full military temperature range. |
| Conversion Time | 10 µs (typ), 30 µs (max) - enables high-throughput sampling in real-time control loops and telemetry systems. |
| Analog Input Ranges | Unipolar: 0 V to +10 V; Bipolar: –5 V to +5 V - selectable via open/ground connection of Pin 16 (BIPOLAR OFFSET). |
| Supply Voltages | +5 V (V+) and –12 V to –15 V (V–) - supports legacy military power architectures without regulation overhead. |
| Temperature Range | –55°C to +125°C - qualified per MIL-STD-883 for deployment in engine bays, radar front-ends, and space-qualified payloads. |
| Output Interface | 8-bit 3-state TTL-compatible outputs (DB0–DB7) - directly interfaces to 8-bit microprocessor data buses without level-shifting. |
Pinout & Package
5962-8850502RA is supplied in a 20-pin hermetically sealed ceramic dual in-line package (DIP), compliant with MIL-STD-883 screening requirements. Package outline matches standard D-20 footprint with 0.300" wide body and 0.100" lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PIN 1 (NC) | No Connect | Internally connected to test point; must remain floating per datasheet. |
| PIN 2 (NC) | No Connect | Internally connected to test point; must remain floating per datasheet. |
| PIN 3 (DIGITAL COMMON) | Digital Ground Reference | Return path for all digital I/O; isolated from ANALOG COMMON to minimize noise coupling. |
| PIN 4 (DATA READY) | Conversion Status Flag | Active-low open-collector output; signals conversion completion and enables synchronized data read. |
| PIN 5 (NC) | No Connect | No internal connection; leave unconnected. |
| PIN 6 (DATA ENABLE) | Output Buffer Control | Active-high TTL input; enables 3-state DB0–DB7 outputs only when conversion is complete. |
| PIN 7 (LSB DB0) | Data Output Bit 0 | Least significant bit of 8-bit parallel output; valid only when DATA ENABLE is high. |
| PIN 8 (DB1) | Data Output Bit 1 | Second LSB; part of true binary (unipolar) or offset binary (bipolar) coding scheme. |
| PIN 9 (ANALOG IN) | Analog Signal Input | High-impedance node (3–7 kΩ) accepting voltage inputs referenced to ANALOG COMMON. |
| PIN 10 (ANALOG COMMON) | Analog Ground Reference | Return for analog input and internal DAC; carries up to 2 mA transient current during conversion. |
| PIN 11 (BIPOLAR OFFSET) | Input Range Mode Select | Open = bipolar (–5 V to +5 V); grounded = unipolar (0 V to +10 V); controls internal offset current injection. |
| PIN 12 (DB2) | Data Output Bit 2 | Third LSB; timing-critical path requiring controlled trace length in high-speed bus layouts. |
| PIN 13 (DB3) | Data Output Bit 3 | Part of parallel data bus; shares common enable timing with DB0–DB7 for synchronous read operations. |
| PIN 14 (DB4) | Data Output Bit 4 | Mid-range bit; contributes to 0.05% full-scale accuracy specification when combined with other bits. |
| PIN 15 (DB5) | Data Output Bit 5 | Used in calibration routines to verify monotonicity and linearity across code transitions. |
| PIN 16 (DB6) | Data Output Bit 6 | Sixth LSB; critical for resolution in medium-range signal digitization (e.g., sensor outputs). |
| PIN 17 (MSB DB7) | Data Output Bit 7 | Most significant bit; determines sign in bipolar mode (1 = positive, 0 = negative); defines full-scale weight. |
| PIN 18 (V+) | Positive Supply | +5 V supply pin; accepts +4.5 V to +7.0 V; powers digital logic and output buffers. |
| PIN 19 (CONVERT) | Start Conversion Trigger | Positive-edge sensitive; ≥500 ns pulse initiates SAR cycle; falling edge starts conversion. |
| PIN 20 (V–) | Negative Supply | –12 V to –15 V supply pin; powers analog circuitry including DAC and comparator; supports –16.5 V absolute max. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Buried Zener Reference | Provides <10 ppm/°C temperature drift and long-term stability-eliminates need for external reference ICs or trimming. |
| No Missing Codes Over Temperature | Guaranteed monotonic behavior from –55°C to +125°C-critical for closed-loop control where code gaps cause instability. |
| Configurable Unipolar/Bipolar Input | Single-pin (Pin 16) selection enables field-reconfigurable signal conditioning without hardware change. |
| Self-Contained Conversion Core | Includes DAC, SAR, comparator, clock, and buffers-requires zero external components for basic operation. |
| MIL-STD-883 Qualified | Meets mechanical, environmental, and electrical screening requirements for Class B military applications. |
Applications
| Avionics Data Acquisition | Tactical Radar Receivers |
|---|---|
|
Use Scenario: Digitizing analog outputs from inertial measurement units (IMUs) and pressure transducers in flight control computers. IC Role / Device Role / Timing Role: Primary ADC capturing 10 V sensor spans at ≤30 µs intervals; synchronized to system clock via CONVERT pulse. Use Value: ±1/2 LSB accuracy ensures sub-degree attitude resolution; MIL-qualified operation sustains reliability at altitude and under vibration. |
Use Scenario: Converting intermediate frequency (IF) signal envelopes in airborne pulse-Doppler radar front-ends. IC Role / Device Role / Timing Role: High-fidelity digitizer for amplitude-modulated IF samples; uses bipolar mode to capture symmetric dynamic range around zero. Use Value: 5 kΩ trimmed input resistor and buried Zener reference maintain gain stability across thermal cycling in radar cabinets. |
| Missile Guidance Telemetry | Ruggedized Industrial PLCs |
|
Use Scenario: Encoding gyroscope and accelerometer outputs for real-time telemetry transmission during launch and midcourse phases. IC Role / Device Role / Timing Role: Radiation-tolerant ADC interfacing directly to 8-bit microcontrollers; DR signal triggers interrupt-driven data packaging. Use Value: No-missing-codes guarantee prevents catastrophic misinterpretation of angular rate data during rapid maneuvers. |
Use Scenario: Monitoring motor phase currents and DC bus voltages in explosion-proof motor drives deployed in oil & gas refineries. IC Role / Device Role / Timing Role: Isolated analog input conditioner feeding into safety-critical control logic; dual commons suppress ground-loop noise. Use Value: Separate ANALOG COMMON and DIGITAL COMMON pins reduce measurement error from switching transients in high-noise industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD673SD | Same die, identical specs, but screened to MIL-STD-883 Class B rather than Class S; slightly relaxed burn-in and life-test requirements. | Approved for non-safety-critical military subsystems where full Class S qualification is not mandated. | Select AD673SD if procurement documentation permits Class B screening and cost reduction is prioritized. |
| MAX160BCWI+ | CMOS-based 8-bit ADC with +5 V only supply; lacks bipolar input support and buried Zener reference; typical conversion time 25 µs. | Suitable for commercial-grade embedded systems with limited thermal range and unipolar-only signal chains. | Choose MAX160BCWI+ only for cost-sensitive, non-military designs where single-supply operation and lower power are essential. |
Compared with 5962-8850502RA, AD673SD offers identical performance with reduced screening rigor, while MAX160BCWI+ trades military reliability and bipolar capability for simpler power architecture and lower unit cost-neither is pin-compatible, and both require PCB layout changes.
Availability
5962-8850502RA is available at Aetrix Electronics and suitable for avionics data acquisition, tactical radar receivers, and missile guidance telemetry requiring stable component supply under extended temperature and shock/vibration conditions.
Supply support for 5962-8850502RA 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 U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The AD673 product line was designed specifically for military and aerospace applications demanding guaranteed no-missing-codes operation, wide temperature resilience, and self-contained signal conversion without external support components.
FAQ
What is the operating temperature range guaranteed for the 5962-8850502RA?
The 5962-8850502RA is fully specified and tested from –55°C to +125°C per MIL-STD-883 requirements. This range covers extreme environments such as jet engine compartments, missile canisters, and space vehicle bays. All parameters-including relative accuracy, conversion time, and input impedance-are guaranteed across this span without derating. The 5962-8850502RA achieves this via laser-trimmed resistor networks and a temperature-compensated buried Zener reference.
Does the 5962-8850502RA require external components to perform a full-accuracy conversion?
No, the 5962-8850502RA requires no external components for full-accuracy 8-bit conversion. It integrates an 8-bit current-output DAC, successive approximation register, comparator, buried Zener reference, clock generator, and 3-state output buffers on a single die. Only power supplies (+5 V and –12 V to –15 V), analog input, and CONVERT/DE control signals are needed. The 5 kΩ trimmed input resistor and internal reference eliminate need for external calibration parts in most applications.
How does the 5962-8850502RA support both unipolar and bipolar input ranges?
The 5962-8850502RA selects input range via Pin 16 (BIPOLAR OFFSET): grounding it configures unipolar mode (0 V to +10 V); leaving it open configures bipolar mode (–5 V to +5 V). In bipolar mode, internal circuitry injects a precise offset current equal to MSB – 1/2 LSB into the comparator summing node, shifting the transfer function. The 5962-8850502RA outputs true offset binary code in bipolar mode and true binary in unipolar mode-no external logic is required for range switching.
What is the significance of the "no missing codes" specification for the 5962-8850502RA?
"No missing codes" means the 5962-8850502RA produces every possible 8-bit output code (0 to 255) across its full input range without skips-guaranteed from –55°C to +125°C. This is essential in closed-loop control (e.g., flight surfaces, servo motors) where skipped codes cause abrupt jumps in commanded output, risking instability. The 5962-8850502RA achieves this via laser-trimmed SiCr resistor ladder and I2L SAR architecture, validated in final test per MIL-STD-883.
Can the 5962-8850502RA interface directly to an 8-bit microprocessor bus without glue logic?
Yes, the 5962-8850502RA supports direct connection to standard 8-bit microprocessor buses (e.g., 8080, Z80) using its CONVERT and DATA ENABLE inputs. A decoded address strobe gated with WR generates CONVERT; the same address strobe gated with RD enables outputs. DATA READY provides handshake signaling. The 5962-8850502RA's TTL-compatible outputs, 3-state buffers, and ≤30 µs conversion time eliminate need for latches, buffers, or wait-state generators in most implementations.
5962-8850502RA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- -
- Sampling Rate (Per Second):
- -
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- -
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- -
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
5962-8850502RA FAQ
1.How can I place an order for 5962-8850502RA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8850502RA 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 5962-8850502RA reliable?
The price and inventory of 5962-8850502RA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8850502RA is usually 5 days.
3.What payment methods are accepted for 5962-8850502RA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8850502RA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-8850502RA?
5962-8850502RA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8850502RA 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 5962-8850502RA?
For technical support, including 5962-8850502RA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8850502RA requirements.
6.How does Aetrix verify that 5962-8850502RA is sourced from the original manufacturer or authorized distributors?
All 5962-8850502RA 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 5962-8850502RA meets industry standards.
7.What is the process for return or replacement of 5962-8850502RA?
All 5962-8850502RA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8850502RA, 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 5962-8850502RA part is unused and in its original packaging.
Return procedure for 5962-8850502RA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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