Overview
The LTC2170CUKG-12#PBF is a 12-bit, 25Msps low power quad analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component is part of the LTC2170-12 series, designed for digitizing high frequency, wide dynamic range signals. It is particularly suited for demanding communications applications due to its excellent AC performance, which includes a signal-to-noise ratio (SNR) of 71dB and a spurious free dynamic range (SFDR) of 90dB. The ADC features ultralow jitter of 0.15ps RMS, enabling undersampling of IF frequencies with excellent noise performance.
Key Specifications
| Parameter | Typical Value | Min | Max |
|---|---|---|---|
| Resolution | 12 bits | 12 bits | 12 bits |
| Sampling Rate | 25 Msps | - | - |
| Integral Linearity Error (INL) | ±0.3 LSB | -1 LSB | 1 LSB |
| Differential Linearity Error (DNL) | ±0.1 LSB | -0.5 LSB | 0.5 LSB |
| Offset Error | ±3 mV | -12 mV | 12 mV |
| Gain Error | -1% to 1% | -2.5% | 0.5% |
| Analog Supply Voltage (VDD) | 1.8 V | 1.7 V | 1.9 V |
| Output Supply Voltage (OVDD) | 1.8 V | 1.7 V | 1.9 V |
| Analog Supply Current | 74 mA | 60 mA | 83 mA |
| Digital Supply Current (1-Lane Mode) | 28 mA | 24 mA | 50 mA |
| Power Dissipation (1-Lane Mode) | 160 mW | - | - |
| Operating Temperature Range | 0°C to 70°C | - | - |
| Package Type | 52-Lead QFN (7mm x 8mm x 0.75mm) | - | - |
Key Features
- 4-channel simultaneous sampling ADC
- 71dB SNR and 90dB SFDR for excellent AC performance
- Ultralow jitter of 0.15ps RMS for undersampling of IF frequencies
- Low power consumption: 160mW total, 40mW per channel
- Single 1.8V supply voltage
- Serial LVDS outputs: one or two bits per channel
- Selectable input ranges: 1V to 2V peak-to-peak
- 800MHz full power bandwidth sample-and-hold
- Shutdown and nap modes for power management
- Serial SPI port for configuration
- Pin-compatible 14-bit and 12-bit versions
Applications
The LTC2170CUKG-12#PBF is ideal for demanding communications applications, including:
- High frequency signal processing
- Wide dynamic range signal digitization
- Wireless communication systems
- Radar and surveillance systems
- Medical imaging and diagnostics
- Industrial automation and control systems
Q & A
- What is the resolution of the LTC2170CUKG-12#PBF ADC?
The resolution is 12 bits.
- What is the sampling rate of the LTC2170CUKG-12#PBF?
The sampling rate is 25 Msps.
- What is the typical SNR and SFDR of the LTC2170CUKG-12#PBF?
The typical SNR is 71dB, and the SFDR is 90dB.
- What is the power consumption of the LTC2170CUKG-12#PBF?
The total power consumption is 160mW, with 40mW per channel.
- What type of output does the LTC2170CUKG-12#PBF use?
The output is serial LVDS, with options for one or two bits per channel.
- What are the selectable input ranges for the LTC2170CUKG-12#PBF?
The selectable input ranges are from 1V to 2V peak-to-peak.
- Does the LTC2170CUKG-12#PBF support shutdown and nap modes?
Yes, it supports shutdown and nap modes for power management.
- What is the package type of the LTC2170CUKG-12#PBF?
The package type is a 52-Lead QFN (7mm x 8mm x 0.75mm).
- What is the operating temperature range of the LTC2170CUKG-12#PBF?
The operating temperature range is from 0°C to 70°C.
- Is the LTC2170CUKG-12#PBF pin-compatible with other versions?
Yes, it is pin-compatible with 14-bit versions.
