Datasheet LTC2228, LTC2227, LTC2226 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 12-Bit, 65Msps Low Power 3V ADCs |
| Pages / Page | 28 / 1 — FEATURES. DESCRIPTION. Sample Rate: 65Msps/40Msps/25Msps. Single 3V … |
| File Format / Size | PDF / 440 Kb |
| Document Language | English |
FEATURES. DESCRIPTION. Sample Rate: 65Msps/40Msps/25Msps. Single 3V Supply (2.7V to 3.4V). Low Power: 205mW/120mW/75mW
Model Line for this Datasheet
- LTC2226CUH#PBF LTC2226CUH#PBF LTC2226CUH#TRPBF LTC2226CUH#TRPBF LTC2226IUH#PBF LTC2226IUH#PBF LTC2226IUH#TRPBF LTC2226IUH#TRPBF
Text Version of Document
LTC2228/LTC2227/LTC2226 12-Bit, 65/40/25Msps Low Power 3V ADCs
FEATURES DESCRIPTION
n
Sample Rate: 65Msps/40Msps/25Msps
The LTC®2228/LTC2227/LTC2226 are 12-bit 65Msps/ n
Single 3V Supply (2.7V to 3.4V)
40Msps/25Msps, low power 3V A/D converters designed n
Low Power: 205mW/120mW/75mW
for digitizing high frequency, wide dynamic range signals. n
71.3dB SNR
The LTC2228/LTC2227/LTC2226 are perfect for demand- n
90dB SFDR
ing imaging and communications applications with AC n No Missing Codes performance that includes 71.3dB SNR and 90dB SFDR n Flexible Input: 1VP-P to 2VP-P Range for signals at the Nyquist frequency. n 575MHz Full Power Bandwidth S/H DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ) n Clock Duty Cycle Stabilizer and no missing codes over temperature. The transition n Shutdown and Nap Modes noise is a low 0.25LSBRMS. n Pin Compatible Family 125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit) A single 3V supply allows low power operation. A separate 105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit) output supply allows the outputs to drive 0.5V to 3.6V 80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit) logic. 65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit) A single-ended CLK input controls converter operation. An 40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit) optional clock duty cycle stabilizer allows high performance 25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit) at full speed for a wide range of clock duty cycles. 10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit) n 32-Pin (5mm × 5mm) QFN Package L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
APPLICATIONS
n Wireless and Wired Broadband Communication n Imaging Systems n Ultrasound n Spectral Analysis n Portable Instrumentation
TYPICAL APPLICATION LTC2228: SNR vs Input Frequency, –1dB, 2V Range, 65Msps
REFH FLEXIBLE 72 REFL REFERENCE OVDD 71 + D11 12-BIT • ANALOG INPUT CORRECTION OUTPUT PIPELINED • INPUT S/H LOGIC DRIVERS ADC CORE 70 • – D0 SNR (dBFS) OGND 69 CLOCK/DUTY CYCLE CONTROL 68 0 50 100 150 200 222876 TA01 INPUT FREQUENCY (MHz) CLK 2228 G09 222876fb 1
FEATURES DESCRIPTION
n
Sample Rate: 65Msps/40Msps/25Msps
The LTC®2228/LTC2227/LTC2226 are 12-bit 65Msps/ n
Single 3V Supply (2.7V to 3.4V)
40Msps/25Msps, low power 3V A/D converters designed n
Low Power: 205mW/120mW/75mW
for digitizing high frequency, wide dynamic range signals. n
71.3dB SNR
The LTC2228/LTC2227/LTC2226 are perfect for demand- n
90dB SFDR
ing imaging and communications applications with AC n No Missing Codes performance that includes 71.3dB SNR and 90dB SFDR n Flexible Input: 1VP-P to 2VP-P Range for signals at the Nyquist frequency. n 575MHz Full Power Bandwidth S/H DC specs include ±0.3LSB INL (typ), ±0.15LSB DNL (typ) n Clock Duty Cycle Stabilizer and no missing codes over temperature. The transition n Shutdown and Nap Modes noise is a low 0.25LSBRMS. n Pin Compatible Family 125Msps: LTC2253 (12-Bit), LTC2255 (14-Bit) A single 3V supply allows low power operation. A separate 105Msps: LTC2252 (12-Bit), LTC2254 (14-Bit) output supply allows the outputs to drive 0.5V to 3.6V 80Msps: LTC2229 (12-Bit), LTC2249 (14-Bit) logic. 65Msps: LTC2228 (12-Bit), LTC2248 (14-Bit) A single-ended CLK input controls converter operation. An 40Msps: LTC2227 (12-Bit), LTC2247 (14-Bit) optional clock duty cycle stabilizer allows high performance 25Msps: LTC2226 (12-Bit), LTC2246 (14-Bit) at full speed for a wide range of clock duty cycles. 10Msps: LTC2225 (12-Bit), LTC2245 (14-Bit) n 32-Pin (5mm × 5mm) QFN Package L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
APPLICATIONS
n Wireless and Wired Broadband Communication n Imaging Systems n Ultrasound n Spectral Analysis n Portable Instrumentation
TYPICAL APPLICATION LTC2228: SNR vs Input Frequency, –1dB, 2V Range, 65Msps
REFH FLEXIBLE 72 REFL REFERENCE OVDD 71 + D11 12-BIT • ANALOG INPUT CORRECTION OUTPUT PIPELINED • INPUT S/H LOGIC DRIVERS ADC CORE 70 • – D0 SNR (dBFS) OGND 69 CLOCK/DUTY CYCLE CONTROL 68 0 50 100 150 200 222876 TA01 INPUT FREQUENCY (MHz) CLK 2228 G09 222876fb 1
