Dual 16-Bit 5Msps SAR ADC
Simultaneous Sampling ADC with Wide Input Common Mode Range
The LTC
®
2323-16 is part of a family of dual simultaneous sampling, 16-, 14- and 12-bit 5Msps SAR ADCs offering a wide input
common mode range. The flexible differential inputs can digitize a wide variety of analog signals, including pseudo-differential
unipolar and bipolar signals, and signals with an arbitrary relationship to each other, with no configuration required. The low drift,
integrated precision bandgap reference with guaranteed 20ppm/°C maximum temperature coefficient and small 20mm
2
QFN
package saves space in high density designs.
Features
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Up to 5Msps Throughput Rate
8V
P-P
Differential Inputs with Rail-to-Rail Common Mode
81dB SNR, –89dB THD at f
IN
= 500kHz (16 Bits)
±4LSB INL (Typ), ±12LSB (Max)
Low Drift (20ppm/°C Max), 2.048V or 4.096V Internal Reference
Single 3.3V or 5V Operation
No Cycle Latency (LTC2321)
Low Power Dissipation:
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40mW/Ch (5Msps, 5V, CMOS Outputs)
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48mW/Ch (5Msps, 5V, LVDS Outputs)
CMOS or LVDS SPI-Compatible Serial I/O
Guaranteed Operation from –40°C to 125°C
28-Lead (4mm × 5mm) QFN Package
2Msps
16-Bit
81dB SNR
14-Bit
80dB SNR
12-Bit
73dB SNR
2321-16
5Msps
2323-16
2321-14
2323-14
2321-12
2323-12
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.
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