Overview
The LTC2159CUK from Analog Devices Inc. is a high-performance, 16-bit analog-to-digital converter (ADC) designed for digitizing high-frequency, wide dynamic range signals. This pipelined ADC operates at a sampling rate of 20 Msps and is ideal for demanding applications such as communications, industrial automation, and instrumentation.
It features excellent AC performance with a signal-to-noise ratio (SNR) of 77 dB and a spurious free dynamic range (SFDR) of 90 dB. The ultralow jitter of 0.07 ps RMS allows for undersampling of IF frequencies with excellent noise performance.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 16 | |
| Sampling Rate | 20M | sps |
| Input Type | Differential | |
| Number of Inputs | 1 | |
| Data Interface | LVDS - Parallel, Parallel | |
| Configuration | S/H-ADC | |
| Architecture | Pipelined | |
| Reference Type | External, Internal | |
| Voltage - Supply, Analog | 1.7 V ~ 1.9 V | |
| Voltage - Supply, Digital | 1.7 V ~ 1.9 V | |
| Operating Temperature | 0°C ~ 70°C | |
| Package / Case | 48-WFQFN Exposed Pad | |
| Mounting Type | Surface Mount |
Key Features
- High AC performance with 77 dB SNR and 90 dB SFDR.
- Ultralow jitter of 0.07 ps RMS, enabling undersampling of IF frequencies.
- Differential input with support for various input types (sine wave, PECL, LVDS, TTL, CMOS).
- Flexible digital output options: full rate CMOS, double data rate CMOS, or double data rate LVDS.
- Separate output power supply allowing CMOS output swing from 1.2V to 1.8V.
- No missing codes over temperature with ±2LSB INL (typ) and ±0.5LSB DNL (typ).
- Optional clock duty cycle stabilizer for improved timing accuracy.
Applications
- Communications: Ideal for demanding communications applications due to its high AC performance and low jitter.
- Industrial Automation: Suitable for high-speed data acquisition and control systems.
- Instrumentation and Measurement: Used in precision measurement instruments requiring high accuracy and dynamic range.
- Aerospace and Defense: Applies to various military and aerospace applications requiring high reliability and performance.
- Healthcare: Utilized in medical imaging and diagnostic equipment.
- Motor and Power Control: Used in high-performance motor control and power management systems.
Q & A
- What is the sampling rate of the LTC2159CUK?
The LTC2159CUK has a sampling rate of 20 Msps (million samples per second).
- What is the resolution of the LTC2159CUK?
The LTC2159CUK is a 16-bit analog-to-digital converter.
- What type of input does the LTC2159CUK support?
The LTC2159CUK supports differential inputs and can be driven by various signal types including sine wave, PECL, LVDS, TTL, and CMOS.
- What are the voltage supply ranges for the LTC2159CUK?
The LTC2159CUK operates with both analog and digital supply voltages ranging from 1.7 V to 1.9 V.
- What is the operating temperature range of the LTC2159CUK?
The operating temperature range of the LTC2159CUK is from 0°C to 70°C.
- What package type is the LTC2159CUK available in?
The LTC2159CUK is available in a 48-WFQFN Exposed Pad package.
- What are the key AC performance metrics of the LTC2159CUK?
The LTC2159CUK has an SNR of 77 dB and an SFDR of 90 dB, along with ultralow jitter of 0.07 ps RMS.
- Can the LTC2159CUK be used in high-speed applications?
Yes, the LTC2159CUK is designed for high-speed applications and is suitable for undersampling IF frequencies due to its low jitter and high AC performance.
- What are the digital output options for the LTC2159CUK?
The LTC2159CUK offers digital output options including full rate CMOS, double data rate CMOS, and double data rate LVDS.
- Is the LTC2159CUK RoHS compliant?
Yes, the LTC2159CUK is RoHS compliant.
