Datasheet LTC2312-12 (Analog Devices)
| Fabricante | Analog Devices |
| Descripción | 12-Bit, 500ksps Serial Sampling ADC in TSOT |
| Páginas / Página | 22 / 1 — FeaTures. DescripTion. 500ksps Throughput Rate. No Cycle Latency. … |
| Formato / tamaño de archivo | PDF / 520 Kb |
| Idioma del documento | Inglés |
FeaTures. DescripTion. 500ksps Throughput Rate. No Cycle Latency. Guaranteed 12-Bit No Missing Codes. Single 3V or 5V Supply
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LTC2312-12 12-Bit, 500ksps Serial Sampling ADC in TSOT
FeaTures DescripTion
n
500ksps Throughput Rate
The LTC®2312-12 is a 12-bit, 500ksps, serial sampling n
No Cycle Latency
A/D converter that draws only 3mA from a single 3V or n
Guaranteed 12-Bit No Missing Codes
5V supply. The LTC2312-12 contains an integrated low n
Single 3V or 5V Supply
drift reference and reference buffer providing a low cost, n
Low Noise: 73dB SNR
high performance (20ppm/°C maximum) and space sav- n
Low Power: 8mW at 500ksps and 3V Supply
ing solution. The LTC2312-12 achieves outstanding AC n
Low Drift (20ppm/°C Maximum) 2.048V or 4.096V
performance of 72.7dB SINAD and –84dB THD while
Internal Reference
sampling at 500ksps. The extremely high sample rate-to- n Sleep Mode with < 1µA Typical Supply Current power ratio makes the LTC2312-12 ideal for compact, low n Nap Mode with Quick Wake-Up < 1 Conversion power, high speed systems. The supply current decreases n Separate 1.8V to 5V Digital I/O Supply at lower sampling rates as the device automatically enters n High Speed SPI-Compatible Serial I/O nap mode after conversions. n Guaranteed Operation from –40°C to 125°C The LTC2312-12 has a high speed SPI-compatible serial n 8-Lead TSOT-23 Package interface that supports 1.8V, 2.5V, 3V and 5V logic. The fast 500ksps throughput with no-cycle latency makes
applicaTions
the LTC2312-12 ideally suited for a wide variety of high n Communication Systems speed applications. n High Speed Data Acquisition
Complete 14-/12-Bit Pin-Compatible SAR ADC Family
n Handheld Terminal Interface
500ksps 2.5Msps 4.5Msps 5Msps
n Medical Imaging 14-Bit LTC2312-14 LTC2313-14 LTC2314-14 n Uninterrupted Power Supplies 12-Bit LTC2312-12 LTC2313-12 LTC2315-12 n Battery Operated Systems Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW n Automotive L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion 16k Point FFT, fS = 500ksps, fIN = 259kHz 5V Supply, Internal Reference, 500ksps, 12-Bit Sampling ADC
0 VDD = 5V 5V –20 SNR = 73dBFS LTC2312-12 SINAD = 72.7dBFS 2.2µF –40 THD = –84dB VDD CONV SFDR = 88dB 2.2µF –60 SERIAL DATA LINK TO REF SCK ASIC, PLD, MPU, DSP –80 OR SHIFT REGISTERS –100 GND SDO AMPLITUDE (dBFS) DIGITAL OUTPUT SUPPLY –120 ANALOG INPUT A 0V TO 4.096V IN OVDD 1.8V TO 5V 2.2µF –140 231212 TA01a –160 0 50 100 150 200 250 INPUT FREQUENCY (kHz) 231212 TA01b 231212fa For more information www.linear.com/LTC2312-12 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts
FeaTures DescripTion
n
500ksps Throughput Rate
The LTC®2312-12 is a 12-bit, 500ksps, serial sampling n
No Cycle Latency
A/D converter that draws only 3mA from a single 3V or n
Guaranteed 12-Bit No Missing Codes
5V supply. The LTC2312-12 contains an integrated low n
Single 3V or 5V Supply
drift reference and reference buffer providing a low cost, n
Low Noise: 73dB SNR
high performance (20ppm/°C maximum) and space sav- n
Low Power: 8mW at 500ksps and 3V Supply
ing solution. The LTC2312-12 achieves outstanding AC n
Low Drift (20ppm/°C Maximum) 2.048V or 4.096V
performance of 72.7dB SINAD and –84dB THD while
Internal Reference
sampling at 500ksps. The extremely high sample rate-to- n Sleep Mode with < 1µA Typical Supply Current power ratio makes the LTC2312-12 ideal for compact, low n Nap Mode with Quick Wake-Up < 1 Conversion power, high speed systems. The supply current decreases n Separate 1.8V to 5V Digital I/O Supply at lower sampling rates as the device automatically enters n High Speed SPI-Compatible Serial I/O nap mode after conversions. n Guaranteed Operation from –40°C to 125°C The LTC2312-12 has a high speed SPI-compatible serial n 8-Lead TSOT-23 Package interface that supports 1.8V, 2.5V, 3V and 5V logic. The fast 500ksps throughput with no-cycle latency makes
applicaTions
the LTC2312-12 ideally suited for a wide variety of high n Communication Systems speed applications. n High Speed Data Acquisition
Complete 14-/12-Bit Pin-Compatible SAR ADC Family
n Handheld Terminal Interface
500ksps 2.5Msps 4.5Msps 5Msps
n Medical Imaging 14-Bit LTC2312-14 LTC2313-14 LTC2314-14 n Uninterrupted Power Supplies 12-Bit LTC2312-12 LTC2313-12 LTC2315-12 n Battery Operated Systems Power 3V/5V 9mW/15mW 14mW/25mW 18mW/31mW 19mW/32mW n Automotive L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.
Typical applicaTion 16k Point FFT, fS = 500ksps, fIN = 259kHz 5V Supply, Internal Reference, 500ksps, 12-Bit Sampling ADC
0 VDD = 5V 5V –20 SNR = 73dBFS LTC2312-12 SINAD = 72.7dBFS 2.2µF –40 THD = –84dB VDD CONV SFDR = 88dB 2.2µF –60 SERIAL DATA LINK TO REF SCK ASIC, PLD, MPU, DSP –80 OR SHIFT REGISTERS –100 GND SDO AMPLITUDE (dBFS) DIGITAL OUTPUT SUPPLY –120 ANALOG INPUT A 0V TO 4.096V IN OVDD 1.8V TO 5V 2.2µF –140 231212 TA01a –160 0 50 100 150 200 250 INPUT FREQUENCY (kHz) 231212 TA01b 231212fa For more information www.linear.com/LTC2312-12 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Converter Characteristics Dynamic Accuracy Reference Input/Output Digital Inputs and Digital Outputs Power Requirements ADC Timing Characteristics Typical Performance Characteristics Pin Functions Block Diagram Timing Diagrams Applications Information Package Description Revision History Typical Application Related Parts