Low Power 3V ADCs
U U
FEATURES
■ Sample Rate: 65Msps/40Msps/25Msps ■ Single 3V Supply (2.7V to 3.4V) ■ Low Power: 205mW/120mW/75mW ■ 74.3...
Description
U U
FEATURES
■ Sample Rate: 65Msps/40Msps/25Msps ■ Single 3V Supply (2.7V to 3.4V) ■ Low Power: 205mW/120mW/75mW ■ 74.3dB SNR ■ 90dB SFDR ■ No Missing Codes ■ Flexible Input: 1VP-P to 2VP-P Range ■ 575MHz Full Power Bandwidth S/H ■ Clock Duty Cycle Stabilizer ■ Shutdown and Nap Modes ■ Pin Compatible Family
125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit) 105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit) 80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit) 65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit) 40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit) 25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit) 10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit) ■ 32-Pin (5mm × 5mm) QFN Package
U APPLICATIO S
■ Wireless and Wired Broadband Communication ■ Imaging Systems ■ Ultrasound ■ Spectral Analysis ■ Portable Instrumentation
LTC2248/LTC2247/LTC2246
14-Bit, 65/40/25Msps Low Power 3V ADCs
DESCRIPTIO
The LTC®2248/LTC2247/LTC2246 are 14-bit 65Msps/ 40Msps/25Msps, low power 3V A/D converters designed for digitizing high frequency, wide dynamic range signals. The LTC2248/LTC2247/LTC2246 are perfect for demanding imaging and communications applications with AC performance that includes 74.3dB SNR and 90dB 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 1LSBRMS.
A single 3V supply allows low power operation. A separate output supply allows the outputs to drive 0.5V to 3.6V logic.
A single-ended CLK input controls convert...
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