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Analog Devices Inc. AD9012SQ/883B
- Part No.:
- AD9012SQ/883B
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-CDIP (0.600", 15.24mm)
- Datasheet:
-
AD9012SQ/883B.pdf
- Description:
- 8-BIT ADC, 1 CHANNEL, PARALLEL
- Quantity:
- Payment:
- Shipping:
Inventory:4,655
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Product details
Overview
AD9012SQ/883B from Analog Devices is a military-grade 8-bit, 100 MSPS TTL-compatible analog-to-digital converter fabricated in advanced bipolar process. It delivers 160 MHz large-signal analog input bandwidth, 15 ps aperture jitter, and 7.5 effective bits at 1.23 MHz with 47.6 dB SNR - enabling high-fidelity digitization of radar pulses and RF IF signals without external track-and-hold. Designed for electronic warfare receivers and digital oscilloscopes operating from –55°C to +125°C.
For engineers reviewing the AD9012SQ/883B datasheet, AD9012SQ/883B pinout, AD9012SQ/883B application, or AD9012SQ/883B equivalent, key selection considerations include MIL-STD-883 Class B compliance, ceramic DIP package (Q-28), 0.75 LSB integral linearity, overflow inhibit logic control, and dual ±5.2 V/±5.0 V supply operation with 955 mW nominal power dissipation.
Technical Context
The AD9012SQ/883B implements a 256-stage parallel comparator architecture with decoded TTL output latches, triggered on the rising edge of the ENCODE signal. Its wide 160 MHz analog input bandwidth stems from low 16 pF input capacitance and optimized layout, eliminating need for external sampling hold in pulse acquisition systems.
It features programmable comparator hysteresis (0–10 mV via HYSTERESIS pin), overflow coding control (return-to-zero vs. non-return-to-zero via OVERFLOW INH), and separate analog/digital ground and supply pins to minimize noise coupling - critical for maintaining 47.6 dB SNR and <15 ps jitter in ECM/ECCM front ends.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - supports unambiguous quantization of 256 discrete amplitude levels per sample. |
| Max Encode Rate | 100 MSPS - enables real-time digitization of signals up to Nyquist frequency of 50 MHz. |
| Analog Input Bandwidth | 160 MHz - allows accurate capture of fast-rising radar pulses and broadband IF signals without external track-and-hold. |
| Aperture Uncertainty | 15 ps - limits timing-induced noise floor degradation, supporting >7.5 ENOB at 1.23 MHz. |
| Power Dissipation | 955 mW - requires thermal management in sealed military enclosures; ceramic DIP θJA = 42°C/W. |
| Operating Temperature | –55°C to +125°C - qualified per MIL-STD-883 Class B for airborne and ground-based defense platforms. |
| Integral Linearity | 0.75 LSB max - ensures monotonicity and <0.3% full-scale error across military temperature range. |
| Output Compatibility | TTL - directly interfaces with 74AS/74ALS logic families without level-shifting in high-speed data paths. |
Pinout & Package
AD9012SQ/883B is housed in a 28-lead Cerdip (Q-28) ceramic dual-in-line package with glass-sealed leads, rated for extended military temperature operation and hermetic reliability. Pin 1 is identified by dot or notch; leads are solder- or tin-plated Kovar/alloy 42.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–9, 20–28 | Digital supply, ground, and I/O | Three +VS (Pin 11,13,18), two –VS (Pin 14,28), two DIGITAL GROUND (Pin 20,23), eight data outputs (D1–D8), OVERFLOW, ENCODE, OVERFLOW INH, HYSTERESIS. |
| 10, 15 | Analog input pair | Differential analog input (AIN+, AIN–); must be driven symmetrically to avoid aperture delay mismatch. |
| 12, 16, 19 | Analog ground | Three dedicated AGND pins (Pin 12,16,19); require low-inductance connection to analog ground plane. |
| 11, 14 | Reference ladder terminals | +VREF (Pin 14), –VREF (Pin 11), REFMID (Pin 12) - form precision 2.0 V differential reference; decoupling with 0.1 µF essential. |
| 21–22, 24–25 | Analog supply | Two ANA –VS (Pin 21,22) and D6/D7 (Pin 24,25) - separate analog negative supply path minimizes digital switching noise injection. |
Key Features
| Feature | Design Value |
|---|---|
| Overflow coding control | OVERFLOW INH pin selects return-to-zero (floating) or non-return-to-zero (grounded) overvoltage response - configurable for pulse detection or saturation tolerance. |
| Programmable hysteresis | HYSTERESIS pin adjusts comparator hysteresis from 0 to 10 mV (–5.2 V to –2.2 V) - improves noise immunity in EMI-heavy ECM environments. |
| Low input capacitance | 16 pF typical - enables direct interface with wideband hybrid amplifiers (e.g., AD9610) without bandwidth-limiting RC roll-off. |
| MIL-STD-883 Class B | Qualified per Method 5005 (temperature cycling), 5008 (hermeticity), and 5011 (burn-in) - ensures reliability in mission-critical defense electronics. |
| Separate analog/digital supplies | +VS/–VS split into analog (Pins 21–22) and digital (Pins 11,13,14,28) domains - prevents digital switching noise from degrading SNR. |
Applications
| Radar Guidance Systems | Digital Oscilloscopes |
|---|---|
Use Scenario: Digitizing pulsed RF returns from phased-array radar with sub-nanosecond rise times and wide dynamic range. IC Role / Device Role / Timing Role: High-speed ADC front end capturing IF signals at 75–100 MSPS with 160 MHz analog bandwidth and 15 ps aperture jitter. Use Value: Eliminates external track-and-hold circuitry while preserving pulse fidelity and time-of-arrival accuracy required for target ranging. | Use Scenario: Real-time waveform acquisition in 1 GHz bandwidth bench oscilloscopes with deep memory and high update rates. IC Role / Device Role / Timing Role: Primary sampling ADC converting analog probe inputs to 8-bit digital words synchronized to ultra-stable ENCODE clock. Use Value: Delivers 47.6 dB SNR and <0.75 LSB linearity across –55°C to +125°C, ensuring measurement repeatability in production test environments. |
| Laser Warning Receivers | Electronic Warfare (ESM) |
Use Scenario: Detecting and characterizing short-duration laser pulses (ns–µs) used in rangefinders and designators across multiple wavelengths. IC Role / Device Role / Timing Role: Fast transient capture ADC with overflow flag and programmable hysteresis to distinguish threat pulses from background noise. Use Value: 16 pF input capacitance and 160 MHz bandwidth enable direct coupling to photodetector preamps, reducing system latency and component count. | Use Scenario: Wideband signal intelligence collection in airborne ESM pods monitoring 10 MHz–2 GHz spectrum for emitter identification. IC Role / Device Role / Timing Role: IF sampling ADC in superheterodyne receiver chain digitizing 100–500 MHz IF outputs at 100 MSPS. Use Value: MIL-STD-883 qualification and ceramic DIP packaging ensure survivability under vibration, shock, and extreme thermal cycling in tactical aircraft. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9012TQ/883B | 0.5 LSB integral linearity (vs. 0.75 LSB), same Q-28 package and MIL-STD-883 Class B rating. | Better DC accuracy for calibration-critical IF digitization; identical timing and power specs. | Select when higher static linearity is prioritized over cost; same PCB layout and thermal design. |
| AD9042SQ/883B | 12-bit resolution, 40 MSPS max rate, 100 MHz analog bandwidth, different pinout and supply requirements (+5 V only). | Higher resolution for narrowband communications analysis; lower speed and bandwidth limit radar pulse fidelity. | Choose for improved dynamic range in spectral monitoring where 100 MSPS is not required; requires new layout and power delivery. |
Compared with AD9012SQ/883B, AD9012TQ/883B offers tighter DC linearity but identical speed and ruggedness, while AD9042SQ/883B trades raw speed for resolution and simplified supply - making AD9012SQ/883B optimal for wideband pulse capture where 8-bit depth and 100 MSPS are mandatory.
Availability
AD9012SQ/883B is available at Aetrix Electronics and suitable for radar guidance systems, digital oscilloscopes, and electronic warfare receivers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD9012SQ/883B 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and defense applications.
The AD9012 product line was engineered for ultrahigh-speed digitization in military and aerospace systems - emphasizing wide analog bandwidth, low aperture jitter, and MIL-STD-883 qualification in hermetic packages.
FAQ
What is the maximum operating temperature range for the AD9012SQ/883B?
The AD9012SQ/883B is rated for operation from –55°C to +125°C and qualified per MIL-STD-883 Class B. This extended temperature range ensures reliable performance in airborne radar systems, ground vehicle EW suites, and space-constrained military enclosures where ambient temperatures exceed commercial limits. The ceramic DIP package provides hermetic sealing and low thermal resistance (θJA = 42°C/W) to sustain this range under continuous 955 mW dissipation.
Does the AD9012SQ/883B require an external track-and-hold amplifier?
No, the AD9012SQ/883B does not require an external track-and-hold amplifier due to its 160 MHz large-signal analog input bandwidth and 16 pF input capacitance. These characteristics allow direct digitization of fast-rising radar pulses and IF signals with minimal acquisition error. The internal comparator design and layout optimization maintain aperture uncertainty below 15 ps, preserving time-domain fidelity without added latency or component count - a key advantage in real-time pulse analysis systems using the AD9012SQ/883B.
How does the OVERFLOW INH pin affect digital output coding on the AD9012SQ/883B?
When the OVERFLOW INH pin on the AD9012SQ/883B is left floating (–5.2 V), the device operates in return-to-zero mode: for overvoltage inputs (AIN ≥ +VREF), OVERFLOW outputs HIGH and all data bits (D1–D8) output LOW. When OVERFLOW INH is tied to ground, it enables non-return-to-zero mode: OVERFLOW outputs LOW and all data bits output HIGH. This pin provides field-configurable saturation handling for pulse detection or clipping tolerance - a critical feature in laser warning and radar jamming applications using the AD9012SQ/883B.
What supply voltages are required for proper operation of the AD9012SQ/883B?
The AD9012SQ/883B requires three distinct supply rails: +5.0 V (applied to Pins 11,13,18), –5.2 V (applied to Pins 14,28), and analog –5.2 V (applied to Pins 21,22). Digital and analog negative supplies must be separately routed and decoupled with 0.1 µF and 0.01 µF capacitors close to the device. Supply stability must remain within ±5% - deviations beyond this range degrade SNR and increase aperture jitter, directly impacting performance in high-fidelity applications relying on the AD9012SQ/883B.
Is the AD9012SQ/883B pin-compatible with other AD9012 variants like AD9012AQ or AD9012BQ?
Yes, the AD9012SQ/883B shares identical pinout and footprint with all AD9012 variants in the Q-28 Cerdip package, including AD9012AQ, AD9012BQ, and AD9012TQ. All use the same 28-pin lead configuration, supply pin assignments, and signal pin definitions. However, the AD9012SQ/883B differs in temperature rating (–55°C to +125°C), MIL-STD-883 qualification, and linearity (0.75 LSB), meaning it can be substituted on existing boards designed for Q-28 AD9012 parts - provided thermal and timing margins accommodate the higher operating range and specification profile of the AD9012SQ/883B.
AD9012SQ/883B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- AD9012
- Package/Case:
- 28-CDIP (0.600", 15.24mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 100M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- -
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- -
- 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:
- 28-CDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
AD9012SQ/883B FAQ
1.How can I place an order for AD9012SQ/883B through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9012SQ/883B 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 AD9012SQ/883B reliable?
The price and inventory of AD9012SQ/883B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9012SQ/883B is usually 5 days.
3.What payment methods are accepted for AD9012SQ/883B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9012SQ/883B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9012SQ/883B?
AD9012SQ/883B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9012SQ/883B 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 AD9012SQ/883B?
For technical support, including AD9012SQ/883B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9012SQ/883B requirements.
6.How does Aetrix verify that AD9012SQ/883B is sourced from the original manufacturer or authorized distributors?
All AD9012SQ/883B 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 AD9012SQ/883B meets industry standards.
7.What is the process for return or replacement of AD9012SQ/883B?
All AD9012SQ/883B units undergo pre-shipment inspection (PSI). If there is an issue with AD9012SQ/883B, 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 AD9012SQ/883B part is unused and in its original packaging.
Return procedure for AD9012SQ/883B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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