Overview
The LTC2188IUP from Analog Devices Inc. is a 16-bit, dual-channel, simultaneous sampling analog-to-digital converter (ADC) designed for high-performance applications. This ADC is optimized for digitizing high-frequency, wide dynamic range signals, making it suitable for demanding communications and data acquisition environments. It operates at a sampling rate of 20 Msps and features low power consumption, with a total power dissipation of 76 mW and 38 mW per channel. The device is available in a 64-pin QFN package and supports various output modes including CMOS, DDR CMOS, and DDR LVDS.
Key Specifications
| Parameter | Conditions | Min | Max | Units | |
|---|---|---|---|---|---|
| Sampling Frequency | 1 | 20 | MHz | ||
| Resolution | 16-bit | ||||
| SNR | 77 dB | dB | |||
| SFDR | 90 dB | dB | |||
| Analog Supply Voltage (VDD) | 1.7 | 1.8 | 1.9 | V | |
| Output Supply Voltage (OVDD) | 1.1 | 1.8 | 1.9 | V | |
| Analog Supply Current (IVDD) | 42 | 43 | 50 | mA | |
| Digital Supply Current (IOVDD) | OVDD = 1.2V | 1.6 | mA | ||
| Power Dissipation (PDISS) | OVDD = 1.2V | 75.6 | 79.3 | 90 | mW |
| Operating Temperature Range | 0°C to 70°C (C grade) | -40°C to 85°C (I grade) | °C |
Key Features
- Two-channel simultaneous sampling ADC
- 16-bit resolution with 20 Msps sampling rate
- Low power consumption: 76 mW total, 38 mW per channel
- Single 1.8V supply voltage
- CMOS, DDR CMOS, or DDR LVDS output modes
- Selectable input ranges: 1 Vpp to 2 Vpp
- 550 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 (9mm × 9mm)
Applications
- Communications: cellular base stations, software-defined radios
- Portable medical imaging
- Multi-channel data acquisition
- Nondestructive testing
Q & A
- What is the sampling rate of the LTC2188IUP?
The LTC2188IUP operates at a sampling rate of 20 Msps.
- What is the resolution of the LTC2188IUP?
The LTC2188IUP has a 16-bit resolution.
- What are the supported output modes of the LTC2188IUP?
The LTC2188IUP supports CMOS, DDR CMOS, and DDR LVDS output modes.
- What is the power consumption of the LTC2188IUP?
The total power dissipation is 76 mW, with 38 mW per channel.
- What are the selectable input ranges of the LTC2188IUP?
The input ranges are selectable from 1 Vpp to 2 Vpp.
- Does the LTC2188IUP have power management features?
Yes, it includes shutdown and nap modes for power management.
- What is the package type and size of the LTC2188IUP?
The LTC2188IUP is packaged in a 64-pin QFN package (9mm × 9mm).
- What are the typical applications of the LTC2188IUP?
Typical applications include communications, portable medical imaging, multi-channel data acquisition, and nondestructive testing.
- Is the LTC2188IUP RoHS compliant?
Yes, the LTC2188IUP is RoHS compliant.
- How can the LTC2188IUP be configured?
The LTC2188IUP can be configured via a serial SPI port.
