Overview
The LTC2140IUP-12 is a 12-bit, dual-channel, simultaneously sampling 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 other high-performance applications. It features low power consumption, high signal-to-noise ratio (SNR), and spurious free dynamic range (SFDR), along with various output modes and configuration options.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 12 | Bits |
| Sampling Rate | 25 Msps | |
| SNR | 70.8 dB | |
| SFDR | 89 dB | |
| Integral Linearity Error (INL) | ±0.3 LSB (typ) | |
| Differential Linearity Error (DNL) | ±0.1 LSB (typ) | |
| Analog Supply Voltage | 1.7 V to 1.9 V | V |
| Output Supply Voltage | 1.1 V to 1.9 V | V |
| Power Consumption (Total) | 48.4 mW to 57.6 mW | mW |
| Power Consumption (Per Channel) | 24 mW to 28.8 mW | mW |
| Full Power Bandwidth S/H | 750 MHz | |
| Package Type | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) | |
| Operating Temperature | -40°C to 85°C | °C |
Key Features
- 2-channel simultaneously sampling ADC
- Low power consumption: 48.4 mW to 57.6 mW total, 24 mW to 28.8 mW per channel
- Single 1.8V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1V P-P to 2V P-P
- 750 MHz full power bandwidth sample-and-hold
- Optional data output randomizer and clock duty cycle stabilizer
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- 64-pin QFN package with exposed pad
Applications
- Communications
- Cellular base stations
- Software defined radios
- Portable medical imaging
- Multi-channel data acquisition
- Nondestructive testing
Q & A
- What is the resolution of the LTC2140IUP-12 ADC?
The LTC2140IUP-12 has a resolution of 12 bits.
- What is the sampling rate of the LTC2140IUP-12?
The sampling rate of the LTC2140IUP-12 is 25 Msps.
- What are the output modes available for the LTC2140IUP-12?
The output modes available are CMOS, DDR CMOS, and DDR LVDS.
- What is the power consumption of the LTC2140IUP-12?
The total power consumption is 48.4 mW to 57.6 mW, with 24 mW to 28.8 mW per channel.
- What is the full power bandwidth of the sample-and-hold circuit?
The full power bandwidth of the sample-and-hold circuit is 750 MHz.
- Does the LTC2140IUP-12 support differential or single-ended inputs?
The LTC2140IUP-12 supports both differential and single-ended inputs.
- What are the operating temperature ranges for the LTC2140IUP-12?
The operating temperature range is -40°C to 85°C.
- What package type is used for the LTC2140IUP-12?
The LTC2140IUP-12 is packaged in a 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP).
- Are there any power management modes available for the LTC2140IUP-12?
Yes, the LTC2140IUP-12 has shutdown and nap modes for power management.
- How can the LTC2140IUP-12 be configured?
The LTC2140IUP-12 can be configured using a serial SPI port.
