Overview
The LTC2170IUKG-12#PBF is a 12-bit, low-power, quad analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is part of the LTC2172-12/LTC2171-12/LTC2170-12 family, 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 an ultralow jitter of 0.15ps RMS, enabling undersampling of IF frequencies with excellent noise performance.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Resolution | 12 | 12 | 12 | Bits |
| Integral Linearity Error (INL) | -1 | ±0.3 | 1 | LSB |
| Differential Linearity Error (DNL) | -0.5 | ±0.1 | 0.5 | LSB |
| Offset Error | -12 | ±3 | 12 | mV |
| Gain Error | -2.5 | -1 | 1 | %FS |
| Analog Supply Voltage (VDD) | 1.7 | 1.8 | 1.9 | V |
| Output Supply Voltage (OVDD) | 1.7 | 1.8 | 1.9 | V |
| Analog Supply Current | 74 | 83 | 94 | mA |
| Digital Supply Current (1-Lane Mode, 1.75mA Mode) | 15 | 28 | 30 | mA |
| Power Dissipation (1-Lane Mode, 1.75mA Mode) | - | 160 | - | mW |
| Sample Rate | - | 25Msps | - | - |
| Full Power Bandwidth Sample-and-Hold | - | 800MHz | - | - |
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: 160mW total, 40mW per channel
- Single 1.8V Supply
- Serial LVDS Outputs: One or Two Bits per Channel with optional internal termination and adjustable output levels
- 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
- 52-Pin (7mm × 8mm) QFN Package
Applications
The LTC2170IUKG-12#PBF is ideal for demanding communications applications, including:
- High-frequency signal processing
- Wide dynamic range signal digitization
- IF (Intermediate Frequency) undersampling
- Wireless communication systems
- Radar and surveillance systems
- Medical imaging and diagnostics
Q & A
- What is the resolution of the LTC2170IUKG-12#PBF ADC?
The resolution is 12 bits.
- What is the sample rate of the LTC2170IUKG-12#PBF?
The sample rate is 25Msps.
- What is the typical SNR and SFDR of the LTC2170IUKG-12#PBF?
The typical SNR is 71dB and SFDR is 90dB.
- What is the power consumption of the LTC2170IUKG-12#PBF?
The total power consumption is 160mW, with 40mW per channel.
- What is the supply voltage for the LTC2170IUKG-12#PBF?
The supply voltage is 1.8V for both analog and digital supplies.
- What type of output does the LTC2170IUKG-12#PBF use?
The output is serial LVDS, with options for one or two bits per channel.
- What are the input range options for the LTC2170IUKG-12#PBF?
The input range is selectable from 1V to 2V peak-to-peak.
- Does the LTC2170IUKG-12#PBF have power management features?
Yes, it includes shutdown and nap modes for power management.
- What is the package type and size of the LTC2170IUKG-12#PBF?
The package is a 52-pin QFN (7mm × 8mm × 0.75mm).
- What are some typical applications for the LTC2170IUKG-12#PBF?
Typical applications include high-frequency signal processing, wireless communication systems, radar, and medical imaging.
