Datasheet LTC2284 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Dual 14-Bit, 105Msps Low Power 3V ADC |
| Pages / Page | 24 / 1 — FEATURES. DESCRIPTIO. Integrated Dual 14-Bit ADCs. Sample Rate: 105Msps. … |
| File Format / Size | PDF / 724 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. Integrated Dual 14-Bit ADCs. Sample Rate: 105Msps. Single 3V Supply (2.85V to 3.4V). Low Power: 540mW
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LTC2284 Dual 14-Bit, 105Msps Low Power 3V ADC
U FEATURES DESCRIPTIO
■
Integrated Dual 14-Bit ADCs
The LTC®2284 is a 14-bit 105Msps, low power dual 3V ■
Sample Rate: 105Msps
A/D converter designed for digitizing high frequency, wide ■
Single 3V Supply (2.85V to 3.4V)
dynamic range signals. The LTC2284 is perfect for ■
Low Power: 540mW
demanding imaging and communications applications ■
72.4dB SNR, 88dB SFDR
with AC performance that includes 72.4dB SNR and 85dB ■ 110dB Channel Isolation at 100MHz SFDR for signals at the Nyquist frequency. ■ Flexible Input: 1VP-P to 2VP-P Range Typical DC specs include ±1.5LSB INL, ±0.6LSB DNL. The ■ 575MHz Full Power Bandwidth S/H transition noise is a low 1.3LSB ■ 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. 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit) A single-ended CLK input controls converter operation. An 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit) optional clock duty cycle stabilizer allows high perfor- 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit) mance at full speed for a wide range of clock duty cycles. 25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit) , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit) All other trademarks are the property of their respective owners. ■ 64-Pin (9mm × 9mm) QFN Package
U APPLICATIO S
■ Wireless and Wired Broadband Communication ■ Imaging Systems ■ Spectral Analysis ■ Portable Instrumentation
U TYPICAL APPLICATIO SNR vs Input Frequency, –1dB, 2V Range
+ OVDD 14-BIT 75 ANALOG INPUT PIPELINED D13A INPUT A S/H OUTPUT • 74 ADC CORE • – DRIVERS • D0A 73 OGND 72 71 70 CLK A CLOCK/DUTY CYCLE CONTROL SNR (dBFS) 69 MUX 68 CLK B CLOCK/DUTY CYCLE 67 CONTROL 66 65 OVDD 0 50 100 150 200 250 300 350 D13B INPUT FREQUENCY (MHz) 2284 TA01b + OUTPUT • 14-BIT • ANALOG • INPUT DRIVERS PIPELINED INPUT B D0B S/H ADC CORE – OGND 2284 TA01 2284fa 1
U FEATURES DESCRIPTIO
■
Integrated Dual 14-Bit ADCs
The LTC®2284 is a 14-bit 105Msps, low power dual 3V ■
Sample Rate: 105Msps
A/D converter designed for digitizing high frequency, wide ■
Single 3V Supply (2.85V to 3.4V)
dynamic range signals. The LTC2284 is perfect for ■
Low Power: 540mW
demanding imaging and communications applications ■
72.4dB SNR, 88dB SFDR
with AC performance that includes 72.4dB SNR and 85dB ■ 110dB Channel Isolation at 100MHz SFDR for signals at the Nyquist frequency. ■ Flexible Input: 1VP-P to 2VP-P Range Typical DC specs include ±1.5LSB INL, ±0.6LSB DNL. The ■ 575MHz Full Power Bandwidth S/H transition noise is a low 1.3LSB ■ 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. 80Msps: LTC2294 (12-Bit), LTC2299 (14-Bit) A single-ended CLK input controls converter operation. An 65Msps: LTC2293 (12-Bit), LTC2298 (14-Bit) optional clock duty cycle stabilizer allows high perfor- 40Msps: LTC2292 (12-Bit), LTC2297 (14-Bit) mance at full speed for a wide range of clock duty cycles. 25Msps: LTC2291 (12-Bit), LTC2296 (14-Bit) , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 10Msps: LTC2290 (12-Bit), LTC2295 (14-Bit) All other trademarks are the property of their respective owners. ■ 64-Pin (9mm × 9mm) QFN Package
U APPLICATIO S
■ Wireless and Wired Broadband Communication ■ Imaging Systems ■ Spectral Analysis ■ Portable Instrumentation
U TYPICAL APPLICATIO SNR vs Input Frequency, –1dB, 2V Range
+ OVDD 14-BIT 75 ANALOG INPUT PIPELINED D13A INPUT A S/H OUTPUT • 74 ADC CORE • – DRIVERS • D0A 73 OGND 72 71 70 CLK A CLOCK/DUTY CYCLE CONTROL SNR (dBFS) 69 MUX 68 CLK B CLOCK/DUTY CYCLE 67 CONTROL 66 65 OVDD 0 50 100 150 200 250 300 350 D13B INPUT FREQUENCY (MHz) 2284 TA01b + OUTPUT • 14-BIT • ANALOG • INPUT DRIVERS PIPELINED INPUT B D0B S/H ADC CORE – OGND 2284 TA01 2284fa 1
