Datasheet LTC2314-14 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 14-Bit, 4.5Msps Serial Sampling ADC in TSOT |
| Páginas / Página | 22 / 1 — FEATURES. DESCRIPTION. 5Msps Throughput Rate. Guaranteed 14-Bit No … |
| Formato / tamaño de archivo | PDF / 679 Kb |
| Idioma del documento | Inglés |
FEATURES. DESCRIPTION. 5Msps Throughput Rate. Guaranteed 14-Bit No Missing Codes. Internal Reference: 2.048V/4.096V Span
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LTC2314-14 14-Bit, 4.5Msps Serial Sampling ADC in TSOT
FEATURES DESCRIPTION
n
4
.
5Msps Throughput Rate
The LTC®2314-14 is a 14-bit, 4.5Msps, serial sampling A/D n
Guaranteed 14-Bit No Missing Codes
converter that draws only 6.2mA from a wide range analog n
Internal Reference: 2.048V/4.096V Span
supply adjustable from 2.7V to 5.25V. The LTC2314-14 n
Low Noise: 77.5dB SNR
contains an integrated bandgap and reference buffer which n
Low Power: 6.2mA at 4.5Msps and 5V
provide a low cost, high performance (20ppm/°C max) n
Dual Supply Range: 3V/5V operation
and space saving applications solution. The LTC2314-14 n Sleep Mode with < 1µA Typical Supply Current achieves outstanding AC performance of 77dB SINAD and n Nap Mode with Quick Wake-up < 1 conversion –85dB THD while sampling a 500kHz input frequency. n Separate 1.8V to 5V Digital I/O Supply The extremely high sample rate-to-power ratio makes the n High Speed SPI-Compatible Serial I/O LTC2314-14 ideal for compact, low power, high speed n Guaranteed Operation from –40°C to 125°C systems. The LTC2314-14 also provides both nap and n 8-Lead TSOT-23 Package sleep modes for further optimization of the device power within a system.
APPLICATIONS
The LTC2314-14 has a high-speed SPI-compatible serial n Communication Systems interface that supports 1.8V, 2.5V, 3V and 5V logic. The n High Speed Data Acquisition fast 4.5Msps throughput makes the LTC2314-14 ideally n Handheld Terminal Interface suited for a wide variety of high speed applications. n Medical Imaging
Complete 14-/12-Bit Pin-Compatible SAR ADC Family
n Uninterrupted Power Supplies
500ksps 2.5Msps 4.5Msps 5Msps
n Battery Operated Systems 14-Bit LTC2312-14 LTC2313-14 LTC2314-14 n Automotive 12-Bit LTC2312-12 LTC2313-12 LTC2315-12 L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION 5V Supply, Internal Reference, 4.5Msps, 14-bit Sampling ADC 32k Point FFT, fS = 4.5Msps, fIN = 500kHz
5V 0 V 2.2µF LTC2314-14 DD = 5V –20 SNR = 77.5dBFS V SINAD = 76.9dBFS DD CS THD = 84.9dB 2.2µF –40 SERIAL DATA LINK TO SFDR = 88.1dB REF SCK ASIC, PLD, MPU, DSP –60 OR SHIFT REGISTERS –80 GND SDO –100 ANALOG INPUT DIGITAL OUTPUT SUPPLY A AMPLITUDE (dBFS) 0V TO 4.096V IN OVDD 1.8V TO 5V 2.2µF –120 –160 231414 TA01 –1400 250 500 750 100012501500175020002250 FREQUENCY (kHz) 231414 TA01a 231414fa For more information www.linear.com/LTC2314-14 1
FEATURES DESCRIPTION
n
4
.
5Msps Throughput Rate
The LTC®2314-14 is a 14-bit, 4.5Msps, serial sampling A/D n
Guaranteed 14-Bit No Missing Codes
converter that draws only 6.2mA from a wide range analog n
Internal Reference: 2.048V/4.096V Span
supply adjustable from 2.7V to 5.25V. The LTC2314-14 n
Low Noise: 77.5dB SNR
contains an integrated bandgap and reference buffer which n
Low Power: 6.2mA at 4.5Msps and 5V
provide a low cost, high performance (20ppm/°C max) n
Dual Supply Range: 3V/5V operation
and space saving applications solution. The LTC2314-14 n Sleep Mode with < 1µA Typical Supply Current achieves outstanding AC performance of 77dB SINAD and n Nap Mode with Quick Wake-up < 1 conversion –85dB THD while sampling a 500kHz input frequency. n Separate 1.8V to 5V Digital I/O Supply The extremely high sample rate-to-power ratio makes the n High Speed SPI-Compatible Serial I/O LTC2314-14 ideal for compact, low power, high speed n Guaranteed Operation from –40°C to 125°C systems. The LTC2314-14 also provides both nap and n 8-Lead TSOT-23 Package sleep modes for further optimization of the device power within a system.
APPLICATIONS
The LTC2314-14 has a high-speed SPI-compatible serial n Communication Systems interface that supports 1.8V, 2.5V, 3V and 5V logic. The n High Speed Data Acquisition fast 4.5Msps throughput makes the LTC2314-14 ideally n Handheld Terminal Interface suited for a wide variety of high speed applications. n Medical Imaging
Complete 14-/12-Bit Pin-Compatible SAR ADC Family
n Uninterrupted Power Supplies
500ksps 2.5Msps 4.5Msps 5Msps
n Battery Operated Systems 14-Bit LTC2312-14 LTC2313-14 LTC2314-14 n Automotive 12-Bit LTC2312-12 LTC2313-12 LTC2315-12 L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW Technology Corporation. All other trademarks are the property of their respective owners.
TYPICAL APPLICATION 5V Supply, Internal Reference, 4.5Msps, 14-bit Sampling ADC 32k Point FFT, fS = 4.5Msps, fIN = 500kHz
5V 0 V 2.2µF LTC2314-14 DD = 5V –20 SNR = 77.5dBFS V SINAD = 76.9dBFS DD CS THD = 84.9dB 2.2µF –40 SERIAL DATA LINK TO SFDR = 88.1dB REF SCK ASIC, PLD, MPU, DSP –60 OR SHIFT REGISTERS –80 GND SDO –100 ANALOG INPUT DIGITAL OUTPUT SUPPLY A AMPLITUDE (dBFS) 0V TO 4.096V IN OVDD 1.8V TO 5V 2.2µF –120 –160 231414 TA01 –1400 250 500 750 100012501500175020002250 FREQUENCY (kHz) 231414 TA01a 231414fa For more information www.linear.com/LTC2314-14 1