Datasheet LTC2293, LTC2292, LTC2291 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | Dual 12-Bit, 65Msps Low Power 3V ADCs |
| Páginas / Página | 28 / 1 — FEATURES. DESCRIPTIO. Integrated Dual 12-Bit ADCs. Sample Rate: … |
| Formato / tamaño de archivo | PDF / 1.1 Mb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTIO. Integrated Dual 12-Bit ADCs. Sample Rate: 65Msps/40Msps/25Msps. Single 3V Supply (2.7V to 3.4V)
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LTC2293/LTC2292/LTC2291 Dual 12-Bit, 65/40/25Msps Low Power 3V ADCs
U FEATURES DESCRIPTIO
■
Integrated Dual 12-Bit ADCs
The LTC®2293/LTC2292/LTC2291 are 12-bit 65Msps/ ■
Sample Rate: 65Msps/40Msps/25Msps
40Msps/25Msps, low power dual 3V A/D converters de- ■
Single 3V Supply (2.7V to 3.4V)
signed for digitizing high frequency, wide dynamic range ■
Low Power: 400mW/235mW/150mW
signals. The LTC2293/LTC2292/LTC2291 are perfect for ■
71.3dB SNR
demanding imaging and communications applications ■
90dB SFDR
with AC performance that includes 71.3dB SNR and 90dB ■ 110dB Channel Isolation at 100MHz SFDR for signals at the Nyquist frequency. ■ Multiplexed or Separate Data Bus DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ) ■ Flexible Input: 1VP-P to 2VP-P Range and no missing codes over temperature. The transition ■ 575MHz Full Power Bandwidth S/H noise is a low 0.25LSB ■ Clock Duty Cycle Stabilizer RMS. ■ Shutdown and Nap Modes A single 3V supply allows low power operation. A separate ■ Pin Compatible Family output supply allows the outputs to drive 0.5V to 3.6V 105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit) logic. An optional multiplexer allows both channels to 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit) share a digital output bus. 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit) A single-ended CLK input controls converter operation. An 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit) optional clock duty cycle stabilizer allows high perfor- 25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit) mance at full speed for a wide range of clock duty cycles. 10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit) , LTC and LT are registered trademarks of Linear Technology Corporation. ■ 64-Pin (9mm × 9mm) QFN Package All other trademarks are the property of their respective owners.
U APPLICATIO S
■ Wireless and Wired Broadband Communication ■ Imaging Systems ■ Spectral Analysis ■ Portable Instrumentation
U TYPICAL APPLICATIO
+ OVDD 12-BIT
LTC2293: SNR vs Input Frequency,
ANALOG INPUT PIPELINED D11A INPUT A S/H OUTPUT •
–1dB, 2V Range, 65Msps
ADC CORE • – DRIVERS • D0A 72 OGND 71 CLK A CLOCK/DUTY CYCLE CONTROL MUX 70 CLK B CLOCK/DUTY CYCLE SNR (dBFS) CONTROL 69 OVDD D11B + OUTPUT • 12-BIT • 68 ANALOG • INPUT DRIVERS 0 50 100 150 200 PIPELINED INPUT B D0B S/H ADC CORE INPUT FREQUENCY (MHz) – OGND 229321 TA02 229321 TA01 229321fa 1
U FEATURES DESCRIPTIO
■
Integrated Dual 12-Bit ADCs
The LTC®2293/LTC2292/LTC2291 are 12-bit 65Msps/ ■
Sample Rate: 65Msps/40Msps/25Msps
40Msps/25Msps, low power dual 3V A/D converters de- ■
Single 3V Supply (2.7V to 3.4V)
signed for digitizing high frequency, wide dynamic range ■
Low Power: 400mW/235mW/150mW
signals. The LTC2293/LTC2292/LTC2291 are perfect for ■
71.3dB SNR
demanding imaging and communications applications ■
90dB SFDR
with AC performance that includes 71.3dB SNR and 90dB ■ 110dB Channel Isolation at 100MHz SFDR for signals at the Nyquist frequency. ■ Multiplexed or Separate Data Bus DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ) ■ Flexible Input: 1VP-P to 2VP-P Range and no missing codes over temperature. The transition ■ 575MHz Full Power Bandwidth S/H noise is a low 0.25LSB ■ Clock Duty Cycle Stabilizer RMS. ■ Shutdown and Nap Modes A single 3V supply allows low power operation. A separate ■ Pin Compatible Family output supply allows the outputs to drive 0.5V to 3.6V 105Msps: LTC2282 (12-Bit), LTC2284 (14-Bit) logic. An optional multiplexer allows both channels to 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit) share a digital output bus. 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit) A single-ended CLK input controls converter operation. An 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit) optional clock duty cycle stabilizer allows high perfor- 25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit) mance at full speed for a wide range of clock duty cycles. 10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit) , LTC and LT are registered trademarks of Linear Technology Corporation. ■ 64-Pin (9mm × 9mm) QFN Package All other trademarks are the property of their respective owners.
U APPLICATIO S
■ Wireless and Wired Broadband Communication ■ Imaging Systems ■ Spectral Analysis ■ Portable Instrumentation
U TYPICAL APPLICATIO
+ OVDD 12-BIT
LTC2293: SNR vs Input Frequency,
ANALOG INPUT PIPELINED D11A INPUT A S/H OUTPUT •
–1dB, 2V Range, 65Msps
ADC CORE • – DRIVERS • D0A 72 OGND 71 CLK A CLOCK/DUTY CYCLE CONTROL MUX 70 CLK B CLOCK/DUTY CYCLE SNR (dBFS) CONTROL 69 OVDD D11B + OUTPUT • 12-BIT • 68 ANALOG • INPUT DRIVERS 0 50 100 150 200 PIPELINED INPUT B D0B S/H ADC CORE INPUT FREQUENCY (MHz) – OGND 229321 TA02 229321 TA01 229321fa 1