LTC2358-16
Buffered Octal, 16-Bit, 200ksps/Ch
Differential 10.24V ADC with
30V Common Mode Range
P-P
FEATURES
DESCRIPTION
TheLTC®2358-16isa16-bit, lownoise8-channelsimulta-
neous sampling successive approximation register (SAR)
ADC with buffered differential, wide common mode range
picoamp inputs. Operating from a 5V low voltage supply,
flexible high voltage supplies, and using the internal refer-
enceandbuffer,eachchannelofthisSoftSpanTM ADCcanbe
independently configured on a conversion-by-conversion
basis to accept 10.24V, 0V to 10.24V, 5.12V, or 0V to
5.12V signals. Individual channels may also be disabled
to increase throughput on the remaining channels.
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200ksps per Channel Throughput
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Eight Buffered Simultaneous Sampling Channels
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500pA/12nA Max Input Leakage at 85°C/125°C
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1LSB INL (Maximum, 10.24V Range)
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Guaranteed 16-Bit, No Missing Codes
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Differential, Wide Common Mode Range Inputs
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Per-Channel SoftSpan Input Ranges:
10.24V, 0V to 10.24V, 5.12V, 0V to 5.12V
12.5V, 0V to 12.5V, 6.25V, 0V to 6.25V
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94.2dB Single-Conversion SNR (Typical)
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−111dB THD (Typical) at f = 2kHz
128dB CMRR (Typical) at f = 200Hz
IN
IN
The integrated picoamp-input analog buffers, wide input
commonmoderangeand128dB CMRRoftheLTC2358-16
allow the ADC to directly digitize a variety of signals us-
ing minimal board space and power. This input signal
flexibility, combined with 1LSB INL, no missing codes
at 16 bits, and 94.2dB SNR, makes the LTC2358-16 an
ideal choice for many high voltage applications requiring
wide dynamic range.
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Rail-to-Rail Input Overdrive Tolerance
Integrated Reference and Buffer (4.096V)
SPI CMOS (1.8V to 5V) and LVDS Serial I/O
Internal Conversion Clock, No Cycle Latency
219mW Power Dissipation (27mW/Ch Typical)
48-Lead (7mm x 7mm) LQFP Package
TheLTC2358-16supportspin-selectableSPICMOS(1.8V
to 5V) and LVDS serial interfaces. Between one and eight
lanes of data output may be employed in CMOS mode,
allowing the user to optimize bus width and throughput.
APPLICATIONS
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Programmable Logic Controllers
Industrial Process Control
Power Line Monitoring
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All registered trademarks and trademarks are the property of their respective owners. Protected
by U.S. Patents, including 7705765, 7961132, 8319673, 9197235.
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Test and Measurement
TYPICAL APPLICATION
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ꢀꢁꢂꢃꢄ
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ꢂꢁꢆꢇ ꢈꢉ ꢊꢇ
ꢀꢁꢂꢃꢄ
Integral Nonlinearity vs
Output Code and Channel
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ꢏꢇꢚꢌꢖCMOS
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ꢌꢑꢒꢝ
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CS
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ꢌAR Aꢚꢑ
ꢘꢟꢝꢎꢉꢏAR
ꢈRꢘꢐ ꢛꢝꢎꢉꢏAR
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ꢀꢁꢂꢃꢄ
ꢀꢁꢂꢃꢁ
ꢀꢁꢂꢃꢄ
ꢀꢁꢂꢃꢃ
ꢠꢂꢀꢇ
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ꢌAꢍꢎꢏꢐ
ꢑꢏꢉꢑꢒ
ꢋꢂꢀꢇ
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ꢝꢟꢢ
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Rꢐꢄꢛꢘꢄ
Rꢐꢄꢝꢟ
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ꢡꢝꢚꢐ ꢝꢟꢎꢘꢈ ꢑꢉꢍꢍꢉꢟ ꢍꢉꢚꢐ RAꢟꢞꢐ
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ꢀꢁꢂꢃꢁꢂ ꢄꢀꢅꢆ
ꢤꢢꢃꢄ
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ꢐꢝꢞꢗꢈ ꢛꢘꢄꢄꢐRꢐꢚ
ꢌꢝꢍꢘꢏꢈAꢟꢐꢉꢘꢌ
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ꢀꢁꢂꢃꢄꢅ ꢆAꢇꢄꢈ
ꢀꢁꢂꢃꢄ
ꢋꢂꢊꢇ
Rev A
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