Product Descriptions
The LTC® 2255/LTC2254 are 14-bit 125Msps/105Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2255/ LTC2254 are perfect for demanding imaging and communications applications with AC performance that includes 72.3dB SNR and 85dB SFDR for signals at the Nyquist frequency.
DC specs include ±1LSB INL (typ), ±0.5LSB DNL (typ) and no missing codes over temperature. The transition noise is a low 1.3 LSBRMS
A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.3V logic.
A single-ended CLK input controls converter operation. An optional clock duty cycle stabilizer allows high performance at full speed for a wide range of clock duty cycles.
Product Features
■ Sample Rate: 125Msps/105Msps
■ Single 3V Supply (2.85V to 3.4V)
■ Low Power: 395mW/320mW
■ 72.4dB SNR
■ 88dB SFDR
■ No Missing Codes
■ Flexible Input: 1VP-P to 2VP-P Range
■ 640MHz Full Power Bandwidth S/H
■ Clock Duty Cycle Stabilizer
■ Shutdown and Nap Modes
Product Applications
■ Wireless and Wired Broadband Communication
■ Imaging Systems
■ Ultrasound
■ Spectral Analysis
■ Portable Instrumentation
Product Specification
| Attribute | Attribute value |
| ANSM-Part# | ANSM-LTC2255CUH#PBF |
| Category | Integrated Circuits (ICs) |
| Data Acquisition | |
| Analog to Digital Converters (ADC) | |
| Manufacturer | - |
| Packaging | Tube |
| Part Status | Active |
| Number of Bits | 14 |
| Sampling Rate (Per Second) | 125M |
| Number of Inputs | 1 |
| Input Type | Differential, Single Ended |
| Data Interface | Parallel |
| Configuration | S/H-ADC |
| Ratio - S/H:ADC | 1:1 |
| Number of A/D Converters | 1 |
| Architecture | Pipelined |
| Reference Type | External, Internal |
| Voltage - Supply, Analog | 2.85V ~ 3.4V |
| Voltage - Supply, Digital | 2.85V ~ 3.4V |
| Operating Temperature | 0°C ~ 70°C |
| Package / Case | 32-WFQFN Exposed Pad |
| Supplier Device Package | 32-QFN (5x5) |
| Mounting Type | Surface Mount |
| Base Product Number | LTC2255 |
Product Photos
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