Overview
The LTC2240-12, produced by Analog Devices Inc., is a high-performance 12-bit analog-to-digital converter (ADC) designed to digitize high-frequency, wide dynamic range signals. This ADC operates at a sampling rate of 170 Msps, making it ideal for demanding communications and other high-speed applications. It features a single 2.5V supply, low power dissipation of 445 mW, and advanced noise performance with 65.6 dB SNR and 80 dB SFDR. The device is available in a 64-pin QFN package and supports various output formats including LVDS, CMOS, and demultiplexed CMOS outputs.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Bits | 12 |
| Sampling Rate | 170 Msps |
| Input Type | Differential |
| Data Interface | LVDS, CMOS, Demultiplexed CMOS |
| Architecture | Pipeline |
| Reference Type | Internal |
| Analog Supply Voltage | 2.5 V |
| Digital Supply Voltage | 2.375 V ~ 2.625 V |
| Operating Temperature | -40°C ~ 85°C |
| Package/Case | 64-Pin QFN |
| Power Dissipation | 445 mW |
| SNR | 65.6 dB |
| SFDR | 80 dB |
| INL (Integral Nonlinearity) | ±0.6 LSB (typ) |
| DNL (Differential Nonlinearity) | ±0.4 LSB (typ) |
Key Features
- High-speed sampling at 170 Msps with 12-bit resolution
- Low power dissipation of 445 mW
- Excellent noise performance: 65.6 dB SNR and 80 dB SFDR
- Single 2.5V supply
- Support for differential LVDS, CMOS, and demultiplexed CMOS outputs
- Selectable input ranges: ±0.5V or ±1V
- No missing codes
- Optional clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Data ready output clock
- Pin compatible with other family members
Applications
- Wireless and Wired Broadband Communication
- Cable Head-End Systems
- Power Amplifier Linearization
- Communications Test Equipment
Q & A
- What is the sampling rate of the LTC2240-12?
The LTC2240-12 samples at a rate of 170 Msps.
- What is the resolution of the LTC2240-12?
The LTC2240-12 has a resolution of 12 bits.
- What are the supported output formats of the LTC2240-12?
The LTC2240-12 supports differential LVDS, CMOS, and demultiplexed CMOS outputs.
- What is the power dissipation of the LTC2240-12?
The power dissipation of the LTC2240-12 is 445 mW.
- What are the selectable input ranges of the LTC2240-12?
The LTC2240-12 has selectable input ranges of ±0.5V or ±1V.
- Does the LTC2240-12 have any power management features?
Yes, the LTC2240-12 includes shutdown and nap modes for power management.
- What is the operating temperature range of the LTC2240-12?
The operating temperature range of the LTC2240-12 is -40°C to 85°C.
- What is the package type of the LTC2240-12?
The LTC2240-12 is packaged in a 64-pin QFN.
- What are some typical applications of the LTC2240-12?
Typical applications include wireless and wired broadband communication, cable head-end systems, power amplifier linearization, and communications test equipment.
- Does the LTC2240-12 have an optional clock duty cycle stabilizer?
Yes, the LTC2240-12 has an optional clock duty cycle stabilizer.
