Overview
The LTC2161CUK, produced by Analog Devices Inc., is a 16-bit, 40Msps analog-to-digital converter (ADC) designed for digitizing high frequency, wide dynamic range signals. This ADC is particularly suited for demanding communications applications, offering excellent AC performance with a signal-to-noise ratio (SNR) of 77dB and a spurious free dynamic range (SFDR) of 90dB. The device features ultralow jitter of 0.07ps RMS, enabling the undersampling of IF frequencies with superior noise performance. It operates on a single 1.8V supply and is available in a 48-pin QFN package, making it a compact and efficient solution for various high-performance applications.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 16 | Bits |
| Sampling Rate | 40 | MSPS |
| Integral Linearity Error (INL) | ±2 | LSB |
| Differential Linearity Error (DNL) | ±0.5 | LSB |
| Offset Error | ±1.5 | mV |
| Gain Error (Internal Reference) | ±1.5 | %FS |
| Gain Error (External Reference) | ±0.5 | %FS |
| SNR | 77 | dB |
| SFDR | 90 | dB |
| Jitter | 0.07 | ps RMS |
| Analog Supply Voltage | 1.7 - 1.9 | V |
| Digital Supply Voltage | 1.1 - 1.9 | V |
| Analog Supply Current | 35.8 | mA |
| Digital Supply Current | 41.1 | mA |
| Power Dissipation | 66 | mW |
| Operating Temperature | 0°C - 70°C | |
| Package Type | 48-QFN (7x7) |
Key Features
- 16-bit resolution with no missing codes over temperature
- Sampling rates of up to 40Msps
- High AC performance: 77dB SNR and 90dB SFDR
- Ultralow jitter of 0.07ps RMS
- Single 1.8V supply operation
- CMOS, DDR CMOS, or DDR LVDS output modes
- Selectable input ranges: 1Vpp to 2Vpp
- 550MHz 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
- 48-pin QFN package with exposed pad
Applications
- Communications systems
- Cellular base stations
- Software defined radios
- Portable medical imaging
- Multichannel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2161CUK ADC?
The LTC2161CUK has a 16-bit resolution.
- What are the sampling rates available for the LTC2161CUK?
The LTC2161CUK operates at a sampling rate of up to 40Msps.
- What is the SNR and SFDR of the LTC2161CUK?
The LTC2161CUK has an SNR of 77dB and an SFDR of 90dB.
- What is the jitter performance of the LTC2161CUK?
The LTC2161CUK features ultralow jitter of 0.07ps RMS.
- What are the output modes available for the LTC2161CUK?
The LTC2161CUK supports CMOS, DDR CMOS, or DDR LVDS output modes.
- What is the power supply requirement for the LTC2161CUK?
The LTC2161CUK operates on a single 1.8V supply.
- What is the package type of the LTC2161CUK?
The LTC2161CUK is available in a 48-pin QFN package with an exposed pad.
- What are the operating temperature ranges for the LTC2161CUK?
The LTC2161CUK operates within a temperature range of 0°C to 70°C.
- Does the LTC2161CUK support any power management features?
Yes, the LTC2161CUK includes shutdown and nap modes for power management.
- How can the LTC2161CUK be configured?
The LTC2161CUK can be configured via a serial SPI port.
