Overview
The LTC2171IUKG-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 71 dB and a spurious free dynamic range (SFDR) of 90 dB. The ADC features ultralow jitter of 0.15 ps RMS, enabling the 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 (Internal Reference) | -2.5 | -1 | 0.5 | %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 | 111 | 177 | 94 | mA |
| Digital Supply Current (1-Lane Mode, 1.75mA Mode) | 16 | 30 | 25 | mA |
| Power Dissipation (1-Lane Mode, 1.75mA Mode) | - | - | - | mW |
Key Features
- 4-channel simultaneous sampling 12-bit A/D converters
- High AC performance: 71 dB SNR and 90 dB SFDR
- Ultralow jitter of 0.15 ps RMS
- Low power consumption: 198 mW total (LTC2171-12), with 49.5 mW per channel
- Single 1.8V supply voltage
- Serial LVDS outputs: one or two bits per channel
- Selectable input ranges: 1V to 2V
- No missing codes over temperature
- Low transition noise: 0.3 LSB RMS
Applications
The LTC2171IUKG-12#PBF is ideal for demanding communications applications, including:
- Wireless communication systems
- Radar systems
- Medical imaging
- High-speed data acquisition systems
- IF sampling in communication systems
Q & A
- What is the resolution of the LTC2171IUKG-12#PBF ADC?
The resolution is 12 bits.
- What is the typical SNR of the LTC2171IUKG-12#PBF?
The typical SNR is 71 dB.
- What is the maximum power consumption of the LTC2171IUKG-12#PBF?
The maximum power consumption is approximately 198 mW.
- What is the supply voltage for the LTC2171IUKG-12#PBF?
The supply voltage is 1.8V.
- What type of output does the LTC2171IUKG-12#PBF use?
The output is serial LVDS, with one or two bits per channel.
- What is the typical jitter of the LTC2171IUKG-12#PBF?
The typical jitter is 0.15 ps RMS.
- Does the LTC2171IUKG-12#PBF have any missing codes over temperature?
No, there are no missing codes over temperature.
- What are the selectable input ranges for the LTC2171IUKG-12#PBF?
The selectable input ranges are 1V to 2V.
- What is the typical differential linearity error (DNL) of the LTC2171IUKG-12#PBF?
The typical DNL is ±0.1 LSB.
- What is the typical integral linearity error (INL) of the LTC2171IUKG-12#PBF?
The typical INL is ±0.3 LSB.
