Overview
The AD9002BD, produced by Analog Devices Inc., is an 8-bit high-speed monolithic analog-to-digital converter (ADC). Fabricated in an advanced bipolar process, this ADC is capable of operating at sampling rates exceeding 150 million samples per second (MSPS). It features 256 parallel comparator stages and an innovative comparator design that ensures a wide analog input bandwidth of 160 MHz, allowing accurate acquisition of high-speed pulse inputs without the need for an external track-and-hold circuit. The AD9002BD is designed for low power consumption, dissipating only 750 mW, and is available in various temperature grades and package options.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Resolution | 8 | 8 | 8 | Bits |
| Differential Linearity (25°C) | 0.4 | 0.75 | 1.0 | LSB |
| Integral Linearity (25°C) | 0.4 | 1.0 | 1.2 | LSB |
| Initial Offset Error (Top of Reference Ladder, 25°C) | 8 | 14 | 17 | mV |
| Offset Drift Coefficient | 20 | 20 | 20 | µV/°C |
| Analog Input Bias Current (25°C) | 60 | 200 | 200 | µA |
| Analog Input Resistance (25°C) | 25 | 200 | 200 | kΩ |
| Analog Input Capacitance (25°C) | 17 | 22 | 22 | pF |
| Power Dissipation | 750 | mW |
Key Features
- High-speed operation: Sampling rates up to 150 MSPS.
- Low input capacitance: 17 pF.
- Low power consumption: 750 mW at 5.2 V single supply.
- Wide analog input bandwidth: 160 MHz.
- No external track-and-hold circuit required.
- ECL compatible output latches.
- External hysteresis control pin for optimizing comparator sensitivity.
- Overflow bit to indicate overrange inputs, with overflow inhibit pin.
- MIL-STD-883 compliant versions available.
Applications
- Radar systems.
- Digital oscilloscopes and automated test equipment (ATE).
- Laser/radar warning receivers.
- Digital radio and electronic warfare systems (ECM, ECCM, ESM).
- Communication and signal intelligence systems.
Q & A
- What is the maximum sampling rate of the AD9002BD?
The AD9002BD can operate at sampling rates up to 150 MSPS.
- What is the typical power consumption of the AD9002BD?
The typical power consumption is 750 mW at a 5.2 V single supply.
- Does the AD9002BD require an external track-and-hold circuit?
No, the AD9002BD does not require an external track-and-hold circuit due to its wide analog input bandwidth.
- What is the input capacitance of the AD9002BD?
The input capacitance is typically 17 pF.
- Is the AD9002BD MIL-STD-883 compliant?
Yes, MIL-STD-883 compliant versions of the AD9002BD are available.
- What are the typical applications of the AD9002BD?
The AD9002BD is used in radar systems, digital oscilloscopes, laser/radar warning receivers, digital radio, and electronic warfare systems.
- What is the resolution of the AD9002BD?
The resolution of the AD9002BD is 8 bits.
- How does the AD9002BD handle overrange inputs?
The AD9002BD includes an overflow bit to indicate overrange inputs, and this can be disabled using the overflow inhibit pin.
- What is the analog input bandwidth of the AD9002BD?
The analog input bandwidth is 160 MHz.
- What are the available package options for the AD9002BD?
The AD9002BD is available in 28-lead DIP and 28-lead JLCC packages, with military temperature range devices in ceramic DIP packages.
