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Analog Devices Inc. AD9020KZ
- Part No.:
- AD9020KZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 68-CLCC
- Datasheet:
-
AD9020KZ.pdf
- Description:
- IC ADC 10BIT 60MSPS 68-CLCC
- Quantity:
- Payment:
- Shipping:
Inventory:306
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Product details
Overview
AD9020KZ from Analog Devices is a monolithic 10-bit flash analog-to-digital converter (ADC) with 60 MSPS maximum conversion rate, ±1.75 V bipolar analog input range, 45 pF input capacitance, and TTL-compatible digital outputs. It features an overflow bit for overrange detection and is designed for high-fidelity digitization in wideband signal acquisition systems such as radar warning receivers and professional video digitizers.
For engineers reviewing the AD9020KZ datasheet, AD9020KZ pinout, AD9020KZ application, or AD9020KZ equivalent, this page delivers verified technical context, real-world timing and linearity specifications, package-validated pin functions, and two confirmed alternative ADCs suitable for 10-bit/60 MSPS sampling in military-grade and industrial imaging systems.
Technical Context
The AD9020KZ implements a modified flash architecture using 512 comparators-half the count of a conventional 10-bit flash-enabling reduced input capacitance (45 pF) and improved integral linearity. Its resistor ladder includes 1/4REF, 1/2REF, and 3/4REF taps for external voltage forcing to optimize dc accuracy.
Conversion is triggered by the rising edge of the TTL-compatible ENCODE signal; aperture delay is 1 ns (typ), with 5 ps rms jitter. Output data D0–D9 and OVERFLOW are TTL-level, with output delay of 6–13 ns and skew ≤5 ns, supporting synchronous multi-ADC systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete quantization levels for high-fidelity waveform capture. |
| Max Conversion Rate | 60 MSPS - supports real-time digitization of signals up to ~175 MHz analog bandwidth. |
| SNR @ 2.3 MHz | 49.5–56 dB - defines usable dynamic range for low-frequency precision applications like medical imaging. |
| Differential Nonlinearity | ±1.25 LSB (max) - ensures monotonicity and absence of missing codes across full temperature range. |
| Analog Input Capacitance | 45 pF - enables stable interface with low-output-impedance drivers (e.g., AD9617) without resonance. |
| Supply Current | +VS: 440–530 mA; –VS: 140–170 mA - dictates thermal management requirements in compact PCB layouts. |
| Operating Temperature | 0°C to +70°C - validated for commercial and industrial embedded systems, not extended or military grade. |
Pinout & Package
AD9020KZ is supplied in a 68-lead ceramic leaded chip carrier (CLCC) package (Z-68 option), with gull-wing leads optimized for low thermal impedance (θJA = 17°C/W, no airflow). All ground pins (4, 5, 13, 17, 27, 31, 32, 36, 38, 39, 43, 53, 66, 67) must be connected to a low-impedance analog ground plane.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1/2REF (Pin 1) | Reference ladder midpoint | Drives internal 512-step resistor ladder at 0 V; critical for optimizing integral linearity when externally biased. |
| +VS (Pins 3, 6, 15, 18, 25, 30, 33, 34, 37, 40, 45, 52, 55, 65, 68) | Positive supply rail | Nominally +5.0 V ±5%; powers comparator array and output buffers; requires local 0.1 µF decoupling per group. |
| ANALOG IN (Pins 8, 9) | Differential analog input pair | Accepts ±1.75 V (at ±VSENSE); 7 kΩ input resistance and flat 45 pF capacitance simplify driver design. |
| ENCODE (Pin 14) | Convert trigger input | TTL-compatible rising-edge command; 6 ns minimum pulse width; jitter directly degrades SNR performance. |
| D0–D9 (Pins 19–23, 46–50) | Parallel digital output bus | TTL-level, MSB-first (D9 = MSB); output delay 6–13 ns; skew ≤5 ns enables synchronous multi-device capture. |
| OVERFLOW (Pin 51) | Analog overrange indicator | Asserts high when ANALOG IN > +VSENSE; uncalibrated delay and transition point limit use to non-critical monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| 512-comparator flash architecture | Reduces input capacitance by ~50% vs. standard 1024-comparator flash, improving linearity and easing driver requirements. |
| Quarter-point reference taps (1/4REF, 1/2REF, 3/4REF) | Enable external voltage forcing to correct ladder endpoint offsets and improve integral linearity beyond datasheet limits. |
| Configurable output coding | MSB INVERT and LSBs INVERT pins select Binary, Inverted Binary, Two's Complement, or Inverted Two's Complement formats. |
| Overflow bit with independent operation | Signals overrange without affecting D0–D9 validity; allows real-time clipping detection without interrupting data flow. |
| MIL-STD-883-compliant variants available | AD9020SZ/883 and AD9020SE/883 support –55°C to +125°C operation and screening for aerospace/military deployment. |
Applications
| Digital Oscilloscopes | Medical Imaging |
|---|---|
Use Scenario: Real-time waveform capture at 50–60 MSPS for 100+ MHz bandwidth front ends. IC Role / Device Role / Timing Role: Primary ADC capturing time-domain voltage samples; ENCODE synchronized to system clock with <5 ps jitter. Use Value: 56 dB SNR at 2.3 MHz and 45 pF input capacitance enable clean acquisition of fast-rising edges without ringing or distortion. |
Use Scenario: Digitizing CCD or CMOS sensor output pulses in ultrasound or X-ray imaging subsystems. IC Role / Device Role / Timing Role: High-speed parallel ADC converting time-multiplexed pixel intensity signals with transient response <10 ns. Use Value: Guaranteed no missing codes and 7.9+ ENOB at 2.3 MHz ensure accurate grayscale representation and low image noise floor. |
| Professional Video | Radar Warning Systems |
Use Scenario: Sampling composite or RGB video signals in broadcast-quality frame stores and effects processors. IC Role / Device Role / Timing Role: 10-bit digitizer handling 13.5–27 MHz pixel clocks; TTL outputs interface directly to FPGA-based video pipelines. Use Value: Differential gain (1%) and phase (0.5°) specs meet SMPTE 259M compliance for studio-grade video fidelity. |
Use Scenario: IF digitization in airborne radar warning receivers requiring wide instantaneous bandwidth and low spurious generation. IC Role / Device Role / Timing Role: Wideband ADC sampling at 40–60 MSPS with 70 dBc two-tone IMD rejection to preserve signal integrity. Use Value: 48–52 dB SNR (no harmonics) at 15.3 MHz and 46.5–53 dBc harmonic distortion support high-dynamic-range RF signal analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9042BN | 12-bit, 41 MSPS; higher resolution but lower speed; 3.3 V single-supply; no ±VREF support. | Better for medium-speed precision imaging where ENOB > 10 is required; unsuitable for 60 MSPS radar IF sampling. | Select AD9042BN only if resolution outweighs speed and bipolar input capability is not needed. |
| MAX1186ECM+ | 10-bit, 65 MSPS; CMOS outputs; 3.3 V supply; integrated reference; no overflow bit or reference taps. | Suitable for cost-sensitive, space-constrained designs where external reference optimization is unnecessary. | Choose MAX1186ECM+ when board area and BOM count are prioritized over linearity tuning and overrange monitoring. |
Compared with AD9020KZ, AD9042BN trades 20 MSPS speed for 2 extra bits and single-supply simplicity, while MAX1186ECM+ offers marginally higher throughput but forfeits the AD9020KZ's precision reference control and robust overrange signaling-critical for radar and oscilloscope front ends.
Availability
AD9020KZ is available at Aetrix Electronics and suitable for digital oscilloscopes, medical imaging subsystems, and professional video digitizers requiring stable component supply across long production lifecycles.
Supply support for AD9020KZ 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.
The AD9020 belongs to Analog Devices' high-speed flash ADC product line, engineered for demanding wideband acquisition in defense, instrumentation, and broadcast video where speed, linearity, and deterministic timing are essential.
FAQ
What is the maximum guaranteed conversion rate for AD9020KZ across its full operating temperature range?
The AD9020KZ is specified for 60 MSPS operation at 25°C, and this rate is maintained across its full 0°C to +70°C range under typical supply and layout conditions. The datasheet confirms that conversion rate is tested and guaranteed at both extremes of the commercial temperature range, with no derating required for thermal stability in industrial environments.
Does AD9020KZ support differential analog input, and how is the input range set?
AD9020KZ accepts a single-ended bipolar analog input (Pins 8 and 9) referenced to ground, with full-scale range set by external +VREF and –VREF voltages applied across its internal resistor ladder. The nominal input range is ±1.75 V (measured at +VSENSE and –VSENSE), and the device does not support true differential input mode-only pseudo-differential configuration via external biasing.
Can the overflow bit on AD9020KZ be used for precise overvoltage protection in closed-loop systems?
No-the OVERFLOW output on AD9020KZ is not calibrated or production-tested for accuracy; its transition point and delay vary with layout and encode slew rate. The datasheet explicitly states its accuracy is "not tested and not included in linearity specifications," making it suitable only for qualitative overrange indication-not for precision threshold control or feedback loops requiring sub-LSB accuracy.
How does the 1/4REF, 1/2REF, and 3/4REF pin functionality improve linearity in AD9020KZ?
These pins provide access to quarter-points on the internal 512-step resistor ladder. Driving them at precisely 0.875 V, 0 V, and –0.875 V (relative to mid-scale) compensates for endpoint offset errors and improves integral linearity by reducing ladder-induced nonmonotonicity. This external forcing is validated in characterization and directly increases ENOB by up to 0.5 bits at low frequencies.
Is AD9020KZ pin-compatible with other members of the AD9020 family, such as AD9020KE or AD9020JE?
Yes-AD9020KZ shares identical pinout and footprint with AD9020KE (ceramic LCC), AD9020JE (LCC), and AD9020JZ (leaded CLCC), as all use the same Z-68 or E-68A mechanical outline. However, thermal impedance differs between leaded (Z-68) and leadless (E-68A) packages, so thermal design must be re-validated when substituting package types-even though electrical and logical compatibility is preserved.
AD9020KZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- AD9020
- Package/Case:
- 68-CLCC
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 60M
- Number of Inputs:
- 1
- Input Type:
- Differential
- Data Interface:
- Parallel
- Configuration:
- ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- Flash
- Reference Type:
- External
- Voltage - Supply, Analog:
- ±4.75V ~ ±5.25V
- Voltage - Supply, Digital:
- ±4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -
- Supplier Device Package:
- 68-CLCC (24.13x24.13)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD9020KZ FAQ
1.How can I place an order for AD9020KZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD9020KZ 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 AD9020KZ reliable?
The price and inventory of AD9020KZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD9020KZ is usually 5 days.
3.What payment methods are accepted for AD9020KZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD9020KZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD9020KZ?
AD9020KZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD9020KZ 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 AD9020KZ?
For technical support, including AD9020KZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD9020KZ requirements.
6.How does Aetrix verify that AD9020KZ is sourced from the original manufacturer or authorized distributors?
All AD9020KZ 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 AD9020KZ meets industry standards.
7.What is the process for return or replacement of AD9020KZ?
All AD9020KZ units undergo pre-shipment inspection (PSI). If there is an issue with AD9020KZ, 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 AD9020KZ part is unused and in its original packaging.
Return procedure for AD9020KZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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