Overview
The LTC2270IUP, manufactured by Analog Devices Inc., is a 16-bit, 20Msps low noise dual analog-to-digital converter (ADC). This device is designed for digitizing high frequency, wide dynamic range signals and is particularly suited for demanding applications that require high AC performance. The LTC2270 features simultaneous sampling on two channels, making it ideal for applications such as low power instrumentation, software defined radios, portable medical imaging, and multi-channel data acquisition.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 16 | |
| Sampling Rate | 20 Msps | |
| Number of Inputs | 2 | |
| Input Type | Differential | |
| Data Interface | LVDS - Parallel, Parallel | |
| Architecture | Pipelined | |
| Reference Type | External, Internal | |
| Voltage - Supply, Analog | 1.7 V to 1.9 V | |
| Voltage - Supply, Digital | 1.7 V to 1.9 V | |
| Signal-to-Noise Ratio (SNR) | 84.1 dB | |
| Spurious Free Dynamic Range (SFDR) | 99 dB | |
| Integral Non-Linearity (INL) | ±2.3 LSB (Max) | |
| Differential Non-Linearity (DNL) | ±0.2 LSB (Typ) | |
| Power Consumption | 160 mW Total, 80 mW per Channel | |
| Package | 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP) | |
| Operating Temperature Range | -40°C to 85°C (LTC2270I) |
Key Features
- Two-channel simultaneous sampling ADC
- Low noise performance with 84.1 dB SNR and 99 dB SFDR
- Low power consumption: 160 mW total, 80 mW per channel
- Single 1.8 V supply
- CMOS, DDR CMOS, or DDR LVDS outputs
- Selectable input ranges: 1 Vpp to 2.1 Vpp
- 200 MHz full power bandwidth S/H
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin compatible with LTC2180 and LTC2140-14
Applications
- Low power instrumentation
- Software defined radios
- Portable medical imaging
- Multi-channel data acquisition
Q & A
- What is the sampling rate of the LTC2270IUP?
The sampling rate of the LTC2270IUP is 20 Msps.
- How many channels does the LTC2270IUP have?
The LTC2270IUP has two channels that sample simultaneously.
- What is the signal-to-noise ratio (SNR) of the LTC2270IUP?
The SNR of the LTC2270IUP is 84.1 dB.
- What are the available output formats for the LTC2270IUP?
The LTC2270IUP supports CMOS, DDR CMOS, and DDR LVDS output formats.
- What is the power consumption of the LTC2270IUP?
The total power consumption is 160 mW, with 80 mW per channel.
- What is the operating temperature range for the LTC2270IUP?
The operating temperature range for the LTC2270IUP is -40°C to 85°C.
- Does the LTC2270IUP support shutdown and nap modes?
Yes, the LTC2270IUP supports shutdown and nap modes for power management.
- What is the package type of the LTC2270IUP?
The LTC2270IUP is packaged in a 64-Lead QFN (9mm x 9mm x 0.75mm w/ EP).
- Is the LTC2270IUP pin compatible with other models?
Yes, the LTC2270IUP is pin compatible with the LTC2180 and LTC2140-14.
- What is the input range of the LTC2270IUP?
The input range of the LTC2270IUP is selectable from 1 Vpp to 2.1 Vpp.
