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Analog Devices Inc. AD9058AKD
- Part No.:
- AD9058AKD
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-CDIP (0.600", 15.24mm)
- Datasheet:
-
AD9058AKD.pdf
- Description:
- IC ADC 8BIT FLASH 48CDIP
- Quantity:
- Payment:
- Shipping:
Inventory:3,200
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Product details
Overview
AD9058AKD from Analog Devices is a dual 8-bit, 50 MSPS analog-to-digital converter (ADC) in a hermetic 48-lead ceramic DIP package, designed for high-speed quadrature receiver systems requiring matched channel performance, low input capacitance (10 pF), and on-board 2 V reference support. It operates across 0°C to 70°C with ±5 V supplies and delivers 7.7 ENOB at 2.3 MHz for communications demodulation.
For engineers reviewing the AD9058AKD datasheet, AD9058AKD pinout, AD9058AKD application, or AD9058AKD equivalent, this page provides verified technical context, real-world timing behavior, confirmed DC accuracy specs (±0.5 LSB INL), and validated alternatives for radar, electronic warfare, and digital oscilloscope signal acquisition paths.
Technical Context
The AD9058AKD integrates two independent interpolating flash ADCs-each using 128 comparators instead of 256-to reduce die size and input capacitance while maintaining 8-bit resolution. Its architecture eliminates pipeline delay and supports simultaneous sampling with aperture delay matching ≤0.5 ns.
It features an internal bandgap voltage reference (+VINT = 2.0 V typ) capable of driving both ADC reference ladders, enabling unipolar 0 V to 2 V operation without external components. Analog inputs accept ±1 V differential or 0 V to 2 V single-ended signals, with full-scale range set by +VREF/–VREF pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - fixed quantization depth; no missing codes guaranteed across full temperature range. |
| Max Conversion Rate | 50 MSPS - guaranteed sample rate with SNR degradation ≤3 dB; requires 2 kΩ pull-downs on D0–D7 outputs. |
| ENOB @ 2.3 MHz | 7.7 bits - effective precision under real sine-wave stimulus; defines usable dynamic range in IF sampling. |
| Input Capacitance | 10 pF - low loading enables direct interface with high-Z RF filters or op-amp buffers without bandwidth loss. |
| Aperture Delay Matching | ≤0.5 ns - ensures sub-10 ps timing skew between ADC-A and ADC-B for coherent I/Q digitization. |
| Reference Voltage | 2.0 V ±50 mV - internal +VINT drives both reference ladders; supports unipolar 0 V to 2 V full-scale input. |
| Power Dissipation | 770–960 mW - total for both channels; split across +VS (127–154 mA) and –VS (27–38 mA) rails. |
Pinout & Package
AD9058AKD uses a hermetic 48-lead side-brazed ceramic dual in-line package (SBDIP, D-48), with 0.620" × 0.590" body, 0.150" lead spacing, and through-hole mounting compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 4, 40 | GROUND (Analog/Digital) | Common return for analog and digital sections; must connect to single low-impedance ground plane per layout guidelines. |
| 5, 9, 22, 24, 37, 41 | +VS | +5 V analog supply; powers comparator array and reference ladder; bypass with 0.1 μF ceramic capacitor. |
| 7, 20, 26, 39 | –VS | –5 V analog supply; substrate bias; requires reverse-biased clamping diode if powered after +VS to prevent latch-up. |
| 6, 43 | +VREF | Top of internal reference ladder; sets upper bound of analog input range; tied to +VINT when using internal reference. |
| 8, 38 | –VREF | Bottom of internal reference ladder; sets lower bound of analog input range; grounded for unipolar 0 V–2 V mode. |
| 17, 8 | AIN (A/B) | Analog input for ADC-A/ADC-B; accepts 0 V to 2 V (unipolar) or ±1 V (bipolar with external conditioning). |
| 23, 2 | ENCODE | TTL-compatible sample clock input; rising edge triggers conversion; minimum pulse width = 8 ns. |
| 25–32, 47–42 | D0–D7 (A/B) | TTL-level digital outputs; D0 = LSB, D7 = MSB; require 2 kΩ pull-downs above 40 MSPS for clean latching. |
| 12, 13 | +VINT / COMP | +VINT = internal 2 V reference output; COMP = connection point for 0.1 μF external compensation capacitor. |
Key Features
| Feature | Design Value |
|---|---|
| Dual matched ADCs on single die | Guaranteed aperture delay matching ≤0.5 ns and crosstalk rejection ≥48 dBc enable coherent I/Q demodulation. |
| Interpolating flash architecture | Reduces comparator count to 128 per ADC, cutting input capacitance to 10 pF and minimizing die area vs. full-flash design. |
| On-board 2 V voltage reference | +VINT output drives both reference ladders simultaneously, eliminating need for external reference ICs in unipolar systems. |
| Latch-based output with no pipeline delay | Valid data appears at D0–D7 within 8 ns of ENCODE edge; simplifies timing closure in synchronous FPGA capture logic. |
| Flexible input range configuration | Supports 0 V–2 V unipolar (via +VINT), ±1 V bipolar (via external references), or asymmetric ranges using discrete +VREF/–VREF. |
Applications
| Quadrature Demodulation | Digital Oscilloscopes |
|---|---|
Use Scenario: Digitizing in-phase (I) and quadrature (Q) baseband signals from RF mixers in SDR receivers. IC Role / Device Role / Timing Role: Dual-channel ADC providing synchronized sampling at 40–50 MSPS with matched aperture delay for phase-coherent reconstruction. Use Value: 48 dBc crosstalk rejection prevents I-channel leakage into Q-channel FFT bins, preserving EVM in 16-QAM systems. |
Use Scenario: Capturing transient waveforms up to 175 MHz analog bandwidth in portable benchtop oscilloscopes. IC Role / Device Role / Timing Role: High-speed digitizer front-end with 2 ns transient response and no pipeline latency for real-time trigger analysis. Use Value: 7.7 ENOB at 2.3 MHz ensures accurate amplitude measurement of low-frequency modulation envelopes. |
| Electronic Warfare Receivers | Radar Signal Processing |
Use Scenario: Wideband IF sampling in channelized receivers detecting pulsed RF threats across 10–100 MHz bands. IC Role / Device Role / Timing Role: Dual ADC capturing adjacent frequency bands with <0.5 ns inter-channel skew for time-difference-of-arrival (TDOA) estimation. Use Value: 60 dBc crosstalk rejection isolates narrowband jammer signals from adjacent surveillance channels. |
Use Scenario: Pulse compression and Doppler processing in ground-based radar using digitized IF returns. IC Role / Device Role / Timing Role: Matched pair converting I/Q radar echoes at 50 MSPS with deterministic 8 ns output delay for FPGA-based correlation engines. Use Value: Low 10 pF input capacitance preserves rise time of fast-rising radar pulses without external buffer amplification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9220ARZ | Single 12-bit, 10 MSPS ADC; no on-board reference; higher resolution but lower speed and no dual-channel integration. | Suitable for medium-speed precision acquisition (e.g., medical imaging), not real-time I/Q demodulation. | Select when ENOB > 10 bits is required and sample rate ≤10 MSPS suffices; requires external dual-channel mux or two separate units. |
| ADS8326IPW | Single 16-bit, 1 MSPS SAR ADC; serial SPI interface; no internal reference; ultra-low power (15 mW). | Targeted at battery-powered data loggers, not high-speed communications or radar front-ends. | Choose for low-power, high-resolution DC-coupled measurements where speed is secondary; lacks ENCODE timing control and parallel outputs. |
Compared with AD9058AKD, AD9220ARZ trades 5× lower sample rate and no integrated dual-channel capability for 4 extra bits of resolution, while ADS8326IPW sacrifices speed and parallel interface for 1/50th power consumption-neither replicates the AD9058AKD's matched 50 MSPS dual-channel timing or on-chip reference architecture.
Availability
AD9058AKD is available at Aetrix Electronics and suitable for radar signal acquisition, electronic warfare receivers, and digital oscilloscope front-ends requiring stable component supply, long-lifecycle support, and hermetic packaging for harsh environments.
Supply support for AD9058AKD 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, headquartered in Norwood, MA, with over 50 years of innovation in precision data conversion and RF technologies.
The AD9058AKD belongs to Analog Devices' high-speed ADC product line, engineered specifically for defense, aerospace, and test equipment applications demanding matched dual-channel performance, low jitter, and hermetic reliability in extended temperature ranges.
FAQ
What is the maximum guaranteed sample rate for AD9058AKD?
The AD9058AKD guarantees 50 MSPS conversion rate under specified conditions: ENCODE pulse width ≥8 ns, D0–D7 outputs terminated with 2 kΩ pull-down resistors to ground, and analog input amplitude ≤2 V p-p. At 60 MSPS (typical), SNR degrades beyond datasheet limits and is not production-tested.
Does AD9058AKD support bipolar analog input ranges?
Yes, AD9058AKD supports bipolar operation (e.g., ±1 V) by applying external voltages to +VREF and –VREF pins. When using the internal +VINT reference, it defaults to unipolar 0 V to 2 V mode. The absolute analog input range remains –1.5 V to +2.5 V regardless of reference configuration.
How is the internal voltage reference used in AD9058AKD?
The AD9058AKD's internal +VINT pin provides a 2.0 V ±50 mV bandgap reference that directly drives both ADC reference ladders. To use it, connect +VINT to +VREF and ground –VREF; this configures the device for 0 V to 2 V unipolar input operation without external components.
What is the purpose of the COMP pin on AD9058AKD?
The COMP pin on AD9058AKD connects to an external 0.1 μF ceramic capacitor to stabilize the internal voltage reference amplifier. This capacitor must be placed close to the pin with short traces; omitting it causes reference drift and degraded DC accuracy, especially over temperature.
Can AD9058AKD operate with mismatched analog input ranges on its two channels?
Yes, AD9058AKD allows independent configuration of each ADC's input range via separate +VREF and –VREF connections. For example, ADC-A can be set to 0 V–2 V (using +VINT) while ADC-B uses external ±1 V references-enabling flexible multi-mode receiver architectures.
AD9058AKD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 48-CDIP (0.600", 15.24mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 50M
- Number of Inputs:
- 2
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 2
- Architecture:
- Flash
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- ±5V
- Voltage - Supply, Digital:
- ±5V
- Features:
- Simultaneous Sampling
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-CDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
AD9058AKD FAQ
1.How can I place an order for AD9058AKD through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9058AKD 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 AD9058AKD reliable?
The price and inventory of AD9058AKD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9058AKD is usually 5 days.
3.What payment methods are accepted for AD9058AKD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9058AKD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9058AKD?
AD9058AKD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9058AKD 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 AD9058AKD?
For technical support, including AD9058AKD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9058AKD requirements.
6.How does Aetrix verify that AD9058AKD is sourced from the original manufacturer or authorized distributors?
All AD9058AKD 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 AD9058AKD meets industry standards.
7.What is the process for return or replacement of AD9058AKD?
All AD9058AKD units undergo pre-shipment inspection (PSI). If there is an issue with AD9058AKD, 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 AD9058AKD part is unused and in its original packaging.
Return procedure for AD9058AKD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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