Overview
The LTC2261CUJ-12#PBF is a high-performance 12-bit analog-to-digital converter (ADC) produced by Analog Devices, Inc. This device is designed for digitizing high-frequency, wide dynamic range signals, making it ideal for demanding communications and data acquisition applications. It operates on a single 1.8V supply and features low power consumption, high signal-to-noise ratio (SNR), and spurious free dynamic range (SFDR).
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ADI (Analog Devices, Inc.) |
| Description | IC ADC 12-BIT 125MSPS 40-QFN |
| Package / Case | 40-WFQFN Exposed Pad |
| Voltage - Supply, Digital | 1.7 V ~ 1.9 V |
| Voltage - Supply, Analog | 1.7 V ~ 1.9 V |
| Sampling Rate (Per Second) | 125M |
| Reference Type | External, Internal |
| Ratio - S/H:ADC | 1:1 |
| Operating Temperature | 0°C ~ 70°C |
| Number of Inputs | 1 |
| Number of Bits | 12 |
| Number of A/D Converters | 1 |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Lead Free Status / RoHS Status | Lead free / RoHS Compliant |
| Input Type | Differential |
| Data Interface | LVDS - Parallel, Parallel |
Key Features
- 12-bit pipelined analog-to-digital converter with a sampling rate of 125 MSPS.
- Ultralow power consumption: 124mW at 125MSPS.
- High AC performance: 70.8dB SNR and 85dB SFDR.
- Low jitter: 0.17psRMS, allowing for undersampling of IF frequencies with excellent noise performance.
- DC specs include ±0.3LSB INL (typical), ±0.1LSB DNL (typical), and no missing codes over temperature.
- Supports CMOS, DDR CMOS, or DDR LVDS digital outputs.
- Selectable input ranges: 1VP-P to 2VP-P.
- 800MHz full-power bandwidth sample-and-hold (S/H).
- Optional data output randomizer and clock duty cycle stabilizer.
- Shutdown and nap modes for power management.
- Serial SPI port for configuration.
- Pin compatible with 14-bit versions.
Applications
- Communications: cellular base stations, software-defined radios.
- Portable medical imaging.
- Multi-channel data acquisition.
- Nondestructive testing.
Q & A
- What is the sampling rate of the LTC2261CUJ-12#PBF?
The sampling rate is 125 MSPS.
- What is the power supply voltage for the LTC2261CUJ-12#PBF?
The device operates on a single 1.7V to 1.9V supply.
- What are the key AC performance metrics of the LTC2261CUJ-12#PBF?
The device features 70.8dB SNR and 85dB SFDR.
- What types of digital outputs does the LTC2261CUJ-12#PBF support?
The device supports CMOS, DDR CMOS, or DDR LVDS digital outputs.
- What is the operating temperature range of the LTC2261CUJ-12#PBF?
The operating temperature range is 0°C to 70°C.
- Is the LTC2261CUJ-12#PBF lead-free and RoHS compliant?
Yes, it is lead-free and RoHS compliant.
- What is the input type of the LTC2261CUJ-12#PBF?
The input type is differential.
- Does the LTC2261CUJ-12#PBF have power management features?
Yes, it includes shutdown and nap modes for power management.
- What is the package type of the LTC2261CUJ-12#PBF?
The package type is 40-WFQFN Exposed Pad.
- What are some typical applications of the LTC2261CUJ-12#PBF?
Typical applications include communications, portable medical imaging, multi-channel data acquisition, and nondestructive testing.
- How does the LTC2261CUJ-12#PBF manage clock duty cycles?
The device includes an optional clock duty cycle stabilizer for high performance at full speed across a wide range of clock duty cycles.
