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Analog Devices Inc. 5962-8951801RA
- Part No.:
- 5962-8951801RA
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-CDIP (0.300", 7.62mm)
- Datasheet:
-
5962-8951801RA.pdf
- Description:
- IC ADC 8BIT HS TRCK/HOLD 20CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,427
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Product details
Overview
5962-8951801RA from Analog Devices is a military-grade, high-speed 8-bit analog-to-digital converter (ADC) with integrated track-and-hold, fabricated in LC2MOS technology. It delivers 660 ns max conversion time (WR-RD mode), 100 kHz signal bandwidth, ±1 LSB total unadjusted error over –55°C to +125°C, and supports both unipolar (0 V to +5 V) and bipolar (±2.5 V) input ranges. It is used in radar front-ends, avionics data acquisition, and hardened instrumentation where precision timing and wide temperature operation are critical.
For engineers reviewing the 5962-8951801RA datasheet, 5962-8951801RA pinout, 5962-8951801RA application, or 5962-8951801RA equivalent, this page provides verified electrical specifications, MIL-STD-883B Class B validated performance, dual-supply (±5 V) interface capability, real-world dynamic parameters (SNR = 45 dB, THD = –50 dB), and direct substitution guidance for radiation-tolerant embedded systems.
Technical Context
The 5962-8951801RA implements a half-flash conversion architecture using two 4-bit flash ADCs - one for MSBs and one for LSBs - eliminating external clock dependency and enabling precise sampling on the falling edge of WR or RD. Its internal DAC reconstructs the MSB result to generate a residual voltage for LSB conversion, ensuring monotonicity and no missing codes.
It features ratiometric reference inputs (VREF(+) and VREF(–)), a dedicated VSS pin (Pin 19) for true bipolar operation, and latched three-state data outputs (DB0–DB7) compatible with 68000- and 8086-family buses. The device operates in two modes: RD mode (single-cycle conversion/read) and WR-RD mode (separate write-start/read-enable), with INT and OFL outputs supporting cascaded high-resolution configurations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - delivers 256 discrete output codes; 1 LSB = 19.53 mV for 5 V full-scale range. |
| Conversion Time | 660 ns max (WR-RD mode) - enables 1 MHz sample rate; supports real-time capture of fast transients. |
| Total Unadjusted Error | ±1 LSB max over –55°C to +125°C - guarantees monotonicity and no missing codes without calibration. |
| Signal-to-Noise Ratio | 45 dB min at 99.85 kHz full-scale sine wave - meets minimum SNR for voice-band and IF-sampling applications. |
| Input Slew Rate | 1.6 V/µs max - digitizes 5 VPP, 100 kHz sine waves without external track-and-hold. |
| Supply Current | 20 mA max (IDD), 100 µA max (ISS) - low power for thermally constrained military enclosures. |
| Reference Input Range | VREF(–) to VREF(+) = up to 5 V span - supports ratiometric sensing and flexible scaling (e.g., 2 V span → 7.8 mV/LSB). |
Pinout & Package
5962-8951801RA is supplied in a hermetically sealed Cerdip (Q-20) package compliant with MIL-STD-883, Class B processing. Pin layout matches standard 20-pin DIP footprint with 0.3-inch width and 0.1-inch pin pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VIN | Analog input node; accepts differential reference-referred signals from VREF(–) to VREF(+); requires ≤0.9 kΩ source impedance for full accuracy. |
| 2–5, 14–17 | DB0–DB7 | Three-state digital outputs; deliver latched 8-bit natural binary (unipolar) or offset binary (bipolar) code; TTL-compatible VOH/VOL. |
| 6 | WR/RDY | In WR-RD mode: active-low write strobe; in RD mode: open-drain ready status output tied to microprocessor WAIT line. |
| 7 | MODE | Mode selection; pulled low internally (50 µA) - logic high selects WR-RD mode, low selects RD mode. |
| 8 | RD | Active-low read control; enables DB0–DB7 outputs and triggers conversion in RD mode when CS is low. |
| 9 | INT | Open-drain interrupt; goes low 380 ns after WR rising edge (WR-RD) or end of conversion (RD) - signals data readiness. |
| 10 | GND | Digital ground reference; separate from analog ground in system layout to minimize noise coupling. |
| 11–12 | VREF(–), VREF(+) | Differential reference inputs; define zero/full-scale; support ratiometric operation and bipolar offset via VSS pin. |
| 13 | CS | Chip select; must be low to enable WR, RD, or MODE functions; resets INT on rising edge. |
| 18 | OFL | Overflow flag; active-low output indicating VIN > VREF(+) – ½ LSB - used to cascade multiple AD7821s for >8-bit resolution. |
| 19 | VSS | Negative supply terminal; connected to –5 V for bipolar operation or GND for unipolar - enables true ±2.5 V input range. |
| 20 | VDD | Positive supply; +5 V ±5%; powers analog core and digital interface; decoupling required per MIL-PRF-38534. |
Key Features
| Feature | Design Value |
|---|---|
| No external clock required | Half-flash architecture self-times conversion - eliminates clock jitter sensitivity and simplifies system timing design. |
| Built-in track-and-hold | Supports 100 kHz full-scale sine wave inputs without external components - reduces board area and signal path complexity. |
| MIL-STD-883B Class B qualified | Validated for extended temperature (–55°C to +125°C), shock, vibration, and hermeticity - suitable for flight-critical avionics. |
| Ratiometric reference flexibility | VREF(–) and VREF(+) accept any differential span ≤5 V - enables sensor scaling, gain adjustment, and supply-voltage rejection. |
| Two microprocessor interface modes | RD mode (WAIT-state compatible) and WR-RD mode (no WAIT required) - supports legacy 68000, 8086, and custom controllers. |
Applications
| Avionics Data Acquisition | Radar Signal Digitization |
|---|---|
|
Use Scenario: Sampling IF outputs from airborne pulse-Doppler radar receivers operating at 100 kHz baseband bandwidth. IC Role / Device Role / Timing Role: Primary ADC capturing amplitude-modulated intermediate frequency signals with precise edge-aligned sampling on WR falling edge. Use Value: 660 ns conversion time and 100 kHz track-and-hold bandwidth ensure faithful digitization of fast-rising pulse envelopes without aperture uncertainty. |
Use Scenario: Converting analog outputs from phased-array antenna beamforming networks under extreme thermal cycling. IC Role / Device Role / Timing Role: High-reliability ADC interfacing to radiation-hardened FPGAs via WR-RD protocol with INT-driven data handshaking. Use Value: ±1 LSB error over –55°C to +125°C and MIL-STD-883B qualification guarantee consistent quantization across mission-critical temperature excursions. |
| Hardened Industrial Control | Missile Guidance Sensors |
|
Use Scenario: Monitoring high-speed current/voltage transients in solid-state power controllers aboard naval vessels. IC Role / Device Role / Timing Role: Bipolar-input ADC (±2.5 V range) referenced to isolated power rails, digitizing fault signatures during short-circuit events. Use Value: VSS pin enables true dual-supply operation; 1.6 V/µs slew rate captures sub-microsecond overcurrent spikes before protection tripping. |
Use Scenario: Conditioning inertial measurement unit (IMU) analog outputs in tactical missile guidance sections exposed to launch acceleration. IC Role / Device Role / Timing Role: Ratiometric ADC using VREF(+) and VREF(–) tied to stable voltage references to reject supply ripple induced by pyroshock. Use Value: Ratiometric architecture ensures output code depends only on VIN/VREF ratio - immune to ±10% VDD variation during motor ignition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7821TQ | Same die, commercial Cerdip packaging (Q-20), non-MIL-qualified; identical electrical specs but lacks MIL-STD-883B screening. | Approved for industrial temperature (–40°C to +85°C) only; not rated for shock, vibration, or long-term storage at –65°C. | Select AD7821TQ only for cost-sensitive ground-based test equipment where military reliability is not mandated. |
| MAX118BCNG+ | Pin-compatible 8-bit ADC with 100 ns conversion time; uses successive approximation (SAR), not half-flash; requires external clock. | Higher speed but lower dynamic performance (SNR = 42 dB, THD = –45 dB); no built-in track-and-hold - mandates external THS. | Choose MAX118BCNG+ only when sub-µs latency outweighs SNR/THD requirements and external clocking is acceptable. |
Compared with AD7821TQ, 5962-8951801RA adds MIL-STD-883B Class B testing and extended temperature validation; compared with MAX118BCNG+, it trades raw speed for superior dynamic fidelity and eliminates external clock and track-and-hold dependencies - making it optimal for deterministic, low-jitter, high-SNR military sampling.
Availability
5962-8951801RA is available at Aetrix Electronics and suitable for avionics data acquisition, radar signal digitization, and hardened industrial control requiring stable component supply across extended temperature and long-lifecycle programs.
Supply support for 5962-8951801RA 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, founded in 1965 and headquartered in Wilmington, MA.
The 5962-8951801RA belongs to the AD7821 family of LC2MOS high-speed ADCs, designed specifically for military, aerospace, and industrial applications demanding wide temperature operation, low power, and deterministic timing without external clocks.
FAQ
What is the military specification compliance status of the 5962-8951801RA?
The 5962-8951801RA is processed and tested per MIL-STD-883, Class B, including temperature cycling, mechanical shock, vibration, and hermeticity verification. It meets all electrical specifications across –55°C to +125°C and carries the full 5962 prefix denoting QML-38534 qualified product. No derating is required within its specified operating envelope, and 5962-8951801RA documentation includes certified test reports traceable to DoD-approved labs.
Does the 5962-8951801RA require an external clock signal?
No, the 5962-8951801RA does not require an external clock. Its half-flash conversion architecture uses internal timing generators, allowing full operation with only WR, RD, CS, and MODE control signals. This eliminates clock jitter sensitivity and simplifies system-level timing design - a key advantage over SAR or pipeline ADCs. All timing parameters for 5962-8951801RA, including tCRD and tINTL, are self-contained and guaranteed across temperature.
How does the 5962-8951801RA support bipolar input operation?
The 5962-8951801RA supports bipolar input operation via dedicated VSS (Pin 19) and differential reference inputs (VREF(–), VREF(+)). When VSS is connected to –5 V and VREF(–)/VREF(+) set to –2.5 V/+2.5 V, the device digitizes ±2.5 V analog inputs using offset binary coding. This configuration is fully characterized and guaranteed in the 5962-8951801RA datasheet, with ±1 LSB error maintained across the full military temperature range.
Can the 5962-8951801RA be used without an external track-and-hold circuit?
Yes, the 5962-8951801RA includes an inherent track-and-hold function enabled by its sampled-data comparator architecture. It reliably digitizes full-scale 100 kHz sine waves (5 VPP) without external components, as confirmed by its 1.6 V/µs slew rate spec and typical performance curves. This capability is intrinsic to the 5962-8951801RA design and requires no additional configuration - reducing BOM count and signal path errors.
What are the key timing differences between RD mode and WR-RD mode for the 5962-8951801RA?
In RD mode, a single READ cycle (CS + RD low) initiates and completes conversion; RDY (Pin 6) signals readiness and can drive a microprocessor WAIT line. In WR-RD mode, WR starts conversion and RD reads data; INT (Pin 9) signals completion ~380 ns after WR rising edge. WR-RD mode avoids WAIT states and allows tighter timing control - critical for deterministic real-time systems using the 5962-8951801RA in avionics or guidance applications.
5962-8951801RA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 20-CDIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:2
- Number of A/D Converters:
- 2
- Architecture:
- Flash
- Reference Type:
- External
- Voltage - Supply, Analog:
- 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -55°C ~ 125°C
- Supplier Device Package:
- 20-CERDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
5962-8951801RA FAQ
1.How can I place an order for 5962-8951801RA through Aetrix?
Please submit a Request for Quotation (RFQ) for 5962-8951801RA 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 5962-8951801RA reliable?
The price and inventory of 5962-8951801RA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 5962-8951801RA is usually 5 days.
3.What payment methods are accepted for 5962-8951801RA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 5962-8951801RA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 5962-8951801RA?
5962-8951801RA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 5962-8951801RA 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 5962-8951801RA?
For technical support, including 5962-8951801RA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 5962-8951801RA requirements.
6.How does Aetrix verify that 5962-8951801RA is sourced from the original manufacturer or authorized distributors?
All 5962-8951801RA 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 5962-8951801RA meets industry standards.
7.What is the process for return or replacement of 5962-8951801RA?
All 5962-8951801RA units undergo pre-shipment inspection (PSI). If there is an issue with 5962-8951801RA, 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 5962-8951801RA part is unused and in its original packaging.
Return procedure for 5962-8951801RA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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