Overview
The AD9278BBCZ, produced by Analog Devices Inc., is a highly integrated, low-power, and compact analog-to-digital converter (ADC) designed for applications requiring multiple channels of signal processing. This component is optimized for use in medical ultrasound and automotive radar systems, offering a balance of low cost, small size, and ease of use.
Each of the eight channels in the AD9278BBCZ includes a low noise preamplifier (LNA), a variable gain amplifier (VGA), an antialiasing filter (AAF), an ADC, and an I/Q demodulator with programmable phase rotation. This comprehensive integration makes it an ideal solution for high-performance, multi-channel signal acquisition and processing.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Number of Channels | 8 | - | - | - |
| Resolution | 12 bits | - | - | - |
| Sampling Rate | - | 65 MSPS | - | MSPS |
| VGA Gain Range | - | 45 dB | - | dB |
| Maximum Gain | - | 51 dB | - | dB |
| Power Consumption (TGC mode, 40 MSPS) | - | 88 mW per channel | - | mW |
| Power Consumption (CW mode) | - | 32 mW per channel | - | mW |
| Output-referred SNR (1 kHz offset, −3 dBFS) | - | 153 dBc/√Hz | - | dBc/√Hz |
| Package Type | - | 144-ball CSP-BGA (10x10 mm) | - | - |
Key Features
- Eight channels of LNA, VGA, AAF, ADC, and I/Q demodulator
- Low power consumption: 88 mW per channel in TGC mode at 40 MSPS, and 32 mW per channel in CW mode
- Compact package: 10 mm x 10 mm, 144-ball CSP-BGA
- Variable gain range of 45 dB with a maximum gain of up to 51 dB
- Fully differential signal path and active input preamplifier termination
- Programmable phase rotation in the I/Q demodulator
- High dynamic performance and low noise
Applications
The AD9278BBCZ is specifically designed for use in:
- Medical ultrasound systems, where high channel count and low power are critical.
- Automotive radar systems, which require high dynamic range and low noise for accurate signal processing.
Q & A
- What is the primary application of the AD9278BBCZ?
The AD9278BBCZ is primarily used in medical ultrasound and automotive radar systems.
- How many channels does the AD9278BBCZ have?
The AD9278BBCZ has eight channels.
- What is the resolution of the ADC in the AD9278BBCZ?
The ADC in the AD9278BBCZ has a resolution of 12 bits.
- What is the maximum sampling rate of the AD9278BBCZ?
The maximum sampling rate of the AD9278BBCZ is 65 MSPS.
- What is the power consumption per channel in TGC mode at 40 MSPS?
The power consumption per channel in TGC mode at 40 MSPS is 88 mW.
- What is the package type of the AD9278BBCZ?
The AD9278BBCZ comes in a 144-ball CSP-BGA package with dimensions of 10 mm x 10 mm.
- Does the AD9278BBCZ have programmable phase rotation?
Yes, the I/Q demodulator in the AD9278BBCZ has programmable phase rotation.
- What is the output-referred SNR of the AD9278BBCZ?
The output-referred SNR of the AD9278BBCZ is 153 dBc/√Hz at a 1 kHz offset and −3 dBFS.
- Is the signal path in the AD9278BBCZ fully differential?
Yes, the signal path in the AD9278BBCZ is fully differential.
- What is the maximum gain of the VGA in the AD9278BBCZ?
The maximum gain of the VGA in the AD9278BBCZ is up to 51 dB.
