AD9002TD/883B - 8-Bit 150MSPS ADC | Analog Devices
MPN: AD9002TD/883B ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $150 | $150.00 |
| 10 | $135 | $1,350.00 |
| 100 | $120 | $12,000.00 |
| 500 | $105 | $52,500.00 |
| 1,000 | $90 | $90,000.00 |
AD9002TD/883B Overview
An analog-to-digital converter (ADC) is an electronic device that converts continuous analog signals into discrete digital numbers. The AD9002TD/883B is a flash ADC, which uses 256 parallel comparators to achieve high-speed conversion. Flash ADCs are known for their extremely high sampling rates, making them ideal for applications requiring real-time digitization of wideband signals. The AD9002TD/883B is part of the broader ADC product family, which includes successive approximation (SAR) and delta-sigma converters, but flash ADCs offer the highest speed at the cost of higher power consumption and lower resolution.
Key features of the AD9002TD/883B include its 150 MSPS sampling rate, which allows it to digitize signals with bandwidths up to 75 MHz. The low input capacitance of 17 pF minimizes loading on the signal source, preserving signal integrity. The device operates from a single -5.2 V supply, simplifying power supply design. The MIL-STD-883 compliance ensures reliability in harsh environments, with an operating temperature range of -55°C to +125°C. The parallel output interface provides ECL-compatible outputs, enabling direct connection to high-speed digital logic.
The AD9002TD/883B is fabricated using an advanced bipolar process, which enables its high-speed performance. The 256 comparator stages are decoded to drive the output latches, providing a clean digital output. The wide large-signal analog input bandwidth ensures accurate conversion of high-frequency signals. The device's power dissipation is , which should be considered in thermal design.
Typical applications include radar systems, where the high sampling rate is essential for capturing fast-returning echoes. In digital oscilloscopes and ATE equipment, the AD9002TD/883B provides the necessary speed for accurate waveform digitization. Laser/radar warning receivers benefit from its wide bandwidth, and digital radio systems use it for IF sampling. The device's MIL-STD-883 compliance makes it suitable for defense and aerospace applications.
When designing with the AD9002TD/883B, ensure proper decoupling of the -5.2 V supply and careful layout to minimize noise. The input signal should be buffered to avoid loading effects. The ECL outputs require termination to the appropriate voltage levels. Given its obsolescence, consider availability and potential alternatives for new designs.
Drop-in alternatives for AD9002TD/883B — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
AD9002TD
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AD9002TQ
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AD9002SQ
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AD9002JR
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AD9002TD/883B Maximum Ratings & Electrical Characteristics
| Resolution | 8 bits |
| Sampling Rate | 150 MSPS |
| Input Capacitance | 17 pF |
| Supply Voltage | -5.2 V |
| Operating Temperature Range | -55°C to +125°C |
| Package Type | CDIP28 (Ceramic DIP-28) |
| Output Interface | Parallel, ECL compatible |
| Architecture | Flash (256 comparators) |
| MIL-STD-883 Compliance | Class B |
| RoHS Status | unknown |
| Lead Free | unknown |
AD9002TD/883B Pin Configuration
| Pin 1 | VEE — Negative supply (-5.2V) |
| Pin 2 | VIN — Analog input |
| Pin 3 | VREF — Reference voltage |
| Pin 4 | GND — Ground |
| Pin 5 | CLK — Clock input |
| Pin 6 | D0 — Data output bit 0 (LSB) |
| Pin 7 | D1 — Data output bit 1 |
| Pin 8 | D2 — Data output bit 2 |
| Pin 9 | D3 — Data output bit 3 |
| Pin 10 | D4 — Data output bit 4 |
| Pin 11 | D5 — Data output bit 5 |
| Pin 12 | D6 — Data output bit 6 |
| Pin 13 | D7 — Data output bit 7 (MSB) |
| Pin 14 | VCC — Positive supply (if used) |
Typical Applications
AD9002TD/883B is suitable for 6 applications: Radar Systems, Digital Oscilloscopes, ATE Equipment, Laser/Radar Warning Receivers, Digital Radio, Electronic Warfare.
Radar Systems
The AD9002TD/883B's 150 MSPS sampling rate and 8-bit resolution enable digitization of radar return signals with high fidelity. Its wide analog input bandwidth and low input capacitance preserve signal integrity, making it ideal for pulse-Doppler radar receivers. The MIL-STD-883 compliance ensures reliable operation in military radar systems. When used in radar, the ADC must handle fast-rising pulses and wide dynamic range; the flash architecture provides the necessary speed. The ECL outputs interface directly with high-speed digital signal processors for real-time target detection.
Recommended
Digital Oscilloscopes
In digital oscilloscopes, the AD9002TD/883B provides the high sampling rate needed to capture transient signals accurately. Its 8-bit resolution is sufficient for many measurement applications, and the low input capacitance minimizes probe loading. The parallel ECL outputs allow direct connection to acquisition memory. The device's wide operating temperature range supports benchtop and portable instruments. Designers must ensure proper termination of ECL outputs and provide a low-jitter sampling clock to achieve the specified SNR.
Recommended
ATE Equipment
Automatic Test Equipment (ATE) requires high-speed digitizers for testing analog and mixed-signal devices. The AD9002TD/883B's 150 MSPS sampling rate enables fast testing of high-frequency components. Its MIL-STD-883 compliance ensures reliability in production environments. The device's parallel output simplifies data acquisition. When used in ATE, the ADC must handle various signal levels; the wide input bandwidth and low capacitance help maintain accuracy. The -5.2V supply is common in ECL systems, simplifying integration.
Recommended
Laser/Radar Warning Receivers
The AD9002TD/883B is used in laser and radar warning receivers to digitize incoming threat signals. Its high sampling rate allows detection of fast pulses, and the wide bandwidth covers multiple frequency bands. The low input capacitance ensures minimal signal degradation. The MIL-STD-883 compliance is critical for military applications. The ECL outputs interface with digital processors for threat analysis. The device's -55°C to +125°C temperature range ensures operation in extreme environments.
Recommended
Digital Radio
In digital radio receivers, the AD9002TD/883B performs IF sampling, converting intermediate frequency signals to digital for demodulation. Its 150 MSPS sampling rate supports wideband signals, and the 8-bit resolution provides adequate dynamic range for many communication standards. The low input capacitance reduces loading on the IF amplifier. The ECL outputs are compatible with digital downconverters. The device's high speed enables software-defined radio architectures. Designers must consider the -5.2V supply and ECL termination.
Recommended
Electronic Warfare
The AD9002TD/883B is suitable for electronic warfare systems that require wideband signal digitization. Its 150 MSPS sampling rate and 8-bit resolution allow detection of various threat signals. The MIL-STD-883 compliance ensures reliability in military environments. The device's low input capacitance and wide bandwidth are essential for capturing fast frequency-hopping signals. The ECL outputs interface with high-speed processing units. The -55°C to +125°C temperature range supports deployment in harsh conditions.
Recommended
Engineering reference data for AD9002TD/883B — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | AD9002TD | AD9002TQ | AD9002SQ |
|---|---|---|---|---|
| Package | CDIP28 | CDIP28 | CDIP28 | CDIP28 |
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Sampling Rate | 150 MSPS | 150 MSPS | 150 MSPS | 150 MSPS |
| Resolution | 8 bits | 8 bits | 8 bits | 8 bits |
| Supply Voltage | -5.2V | -5.2V | -5.2V | -5.2V |
| Temperature Range | -55°C to +125°C | -55°C to +125°C | 0°C to +70°C | -55°C to +125°C |
| MIL-STD-883 | Class B | No | No | No |
| Input Capacitance | 17 pF | 17 pF | 17 pF | 17 pF |
Key Differentiators
- MIL-STD-883 Class B screening (vs AD9002TD)
- Wide operating temperature range (vs AD9002TQ)
- Ceramic package (vs AD9002JR)
Design Notes
The AD9002TD/883B requires a single -5.2V supply. Use a low-noise linear regulator or a well-filtered switching supply to provide this rail. Decouple the VEE pin with 0.1uF and 10uF capacitors placed close to the pin. Ensure the ground plane is solid and connected to the GND pins directly.
For high-speed ADC layout, keep the analog input trace short and direct to minimize parasitic inductance. Use a 50-ohm controlled impedance trace if the source is 50 ohms. Place the clock input away from the analog input to avoid coupling. Use separate analog and digital ground planes, connected at a single point.
The ECL outputs require proper termination. Terminate each output with a 50-ohm resistor to -2V or use a Thevenin equivalent. Do not leave unused inputs floating. Ensure the clock signal has low jitter to achieve the specified SNR. Avoid exceeding the absolute maximum ratings for supply voltage and input voltage.
Compliance Information
This is a military-grade part from an era before RoHS. Compliance status is unknown.
