Overview
The AD9255BCPZRL7-105 is a high-performance, 14-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is designed to support a wide range of applications, particularly in communications, instrumentation, and medical imaging, where high accuracy, low power consumption, and compact size are crucial.
The AD9255 features a multistage, differential pipelined architecture with integrated output error correction logic, ensuring 14-bit accuracy at sample rates up to 105 MSPS. It operates from a single 1.8 V supply and supports both 1.8 V CMOS and LVDS output formats. The ADC is packaged in a 48-lead LFCSP (Lead Frame Chip Scale Package) and is specified over the industrial temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 14 | Bits |
| Sample Rate | 105 | MSPS |
| SNR | 78.3 dBFS @ 70 MHz and 125 MSPS | dBFS |
| SFDR | 93 dBc @ 70 MHz and 125 MSPS | dBc |
| Power Consumption | 371 mW @ 125 MSPS | mW |
| Analog Supply Voltage | 1.8 V | V |
| Digital Output Supply Voltage | 1.8 V | V |
| Output Data Format | Parallel 1.8 V CMOS or LVDS (DDR) | |
| Package Type | 48-Lead LFCSP (7mm x 7mm x 0.85mm) | |
| Operating Temperature Range | −40°C to +85°C | °C |
Key Features
- High Performance: SNR of 78.3 dBFS and SFDR of 93 dBc at 70 MHz and 125 MSPS.
- Low Power Consumption: 371 mW at 125 MSPS.
- Flexible Output Formats: Supports parallel 1.8 V CMOS or LVDS (DDR) output formats.
- Integrated Voltage Reference: Eases design considerations and provides stability.
- Programmable Internal ADC Voltage Reference: Allows for customizable voltage references.
- On-Chip Dither Option: Improves SFDR performance with low power analog input signals.
- Integer 1-to-8 Input Clock Divider: Provides flexibility in clocking options).
- Duty Cycle Stabilizer: Compensates for variations in the ADC clock duty cycle, ensuring excellent performance over a wide range of input clock duty cycles).
- 3-Wire SPI-Compatible Serial Interface: For setup and control, supporting features like data formatting, clock DCS, power-down, test modes, and voltage reference mode).
Applications
- Communications: Multimode digital receivers (3G, GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA), smart antenna systems, and general-purpose software radios).
- Instrumentation: High-speed data acquisition systems requiring high accuracy and low noise).
- Medical Imaging: Ultrasound equipment and other medical imaging devices that demand high-resolution and high-speed data conversion).
- Broadband Data Applications: High-speed data transmission and reception systems).
Q & A
- What is the resolution of the AD9255BCPZRL7-105 ADC?
The AD9255BCPZRL7-105 has a resolution of 14 bits.
- What is the maximum sample rate of the AD9255BCPZRL7-105?
The maximum sample rate is 105 MSPS.
- What are the supported output data formats for the AD9255BCPZRL7-105?
The ADC supports parallel 1.8 V CMOS or LVDS (DDR) output formats.
- What is the power consumption of the AD9255BCPZRL7-105 at 125 MSPS?
The power consumption is 371 mW at 125 MSPS.
- What is the operating temperature range of the AD9255BCPZRL7-105?
The operating temperature range is −40°C to +85°C.
- Does the AD9255BCPZRL7-105 have an integrated voltage reference?
Yes, it has an integrated voltage reference that eases design considerations.
- What interface is used for setup and control of the AD9255BCPZRL7-105?
A 3-wire SPI-compatible serial interface is used for setup and control.
- What are some of the key applications of the AD9255BCPZRL7-105?
Key applications include communications, instrumentation, medical imaging, and broadband data applications.
- Does the AD9255BCPZRL7-105 support on-chip dither for improved SFDR performance?
Yes, it supports an optional on-chip dither function to improve SFDR performance with low power analog input signals.
- What is the package type of the AD9255BCPZRL7-105?
The package type is a 48-Lead LFCSP (7mm x 7mm x 0.85mm).
