Overview
The AD9022AZ is a 12-bit, 20 MSPS (Mega Samples Per Second) monolithic analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is designed to provide high dynamic performance and is suitable for various high-speed applications. The AD9022AZ operates from +5 V and –5.2 V power supplies and features an on-chip track-and-hold (T/H) amplifier and reference, making it a comprehensive conversion solution. It is TTL logic compatible, distinguishing it from its ECL logic counterpart, the AD9023.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | - | 12 | 12 | 12 | Bits |
| Differential Nonlinearity (DNL) | +25°C | 0.4 | 0.6 | 0.75 | LSB |
| Integral Nonlinearity (INL) | +25°C | 1.3 | 2.0 | 2.5 | LSB |
| Spurious-Free Dynamic Range (SFDR) | AIN = 1 MHz | - | 76 | - | dB |
| Signal-to-Noise Ratio (SNR) | - | - | 65 | - | dB |
| T/H Bandwidth | - | - | 110 | - | MHz |
| Logic Compatibility | - | - | TTL | - | - |
| Logic “1” Voltage | Full VI | 2.4 | 2.4 | 2.4 | V |
| Logic “0” Voltage | Full VI | 0.5 | 0.5 | 0.5 | V |
| +VS Supply Voltage | Full VI | 4.75 | 5.0 | 5.25 | V |
| +VS Supply Current | Full VI | 100 | 120 | 120 | mA |
| –VS Supply Voltage | Full VI | –5.45 | –5.2 | –4.95 | V |
| –VS Supply Current | Full VI | 180 | 220 | 220 | mA |
Key Features
- Monolithic 12-bit, 20 MSPS A/D converter
- On-chip track-and-hold (T/H) amplifier and reference
- High spurious-free dynamic range (SFDR) of typically 76 dB at AIN = 1 MHz
- Low power dissipation of 1.4 watts
- TTL logic compatibility
- Operating temperature range: –25°C to +85°C (industrial), –55°C to +125°C (military)
- 28-pin ceramic DIP and gullwing surface mount packages
Applications
- Radar receivers
- Digital communications
- Digital instrumentation
- Electro-optics
Q & A
- What is the resolution of the AD9022AZ?
The AD9022AZ has a resolution of 12 bits. - What is the sampling rate of the AD9022AZ?
The AD9022AZ samples at 20 MSPS. - What type of logic does the AD9022AZ use?
The AD9022AZ uses TTL logic. - What is the typical spurious-free dynamic range (SFDR) of the AD9022AZ?
The typical SFDR is 76 dB at an analog input frequency of 1 MHz. - What is the power dissipation of the AD9022AZ?
The power dissipation is 1.4 watts. - What are the operating temperature ranges for the AD9022AZ?
The operating temperature ranges are –25°C to +85°C (industrial) and –55°C to +125°C (military). - What types of packages are available for the AD9022AZ?
The AD9022AZ is available in 28-pin ceramic DIP and gullwing surface mount packages. - What is the bandwidth of the on-chip T/H amplifier?
The bandwidth of the on-chip T/H amplifier is 110 MHz. - What are some typical applications of the AD9022AZ?
Typical applications include radar receivers, digital communications, digital instrumentation, and electro-optics. - What are the supply voltages for the AD9022AZ?
The supply voltages are +5 V and –5.2 V.
