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LTC2341HUH-16#PBF

Description
16 位模数转换器 2 输入 1 SAR 32-QFN(5x5)
Categorysemiconductor    ADC/DAC - professional data collection   
File Size2MB,38 Pages
ManufacturerADI
Websitehttps://www.analog.com
Environmental Compliance
Download Datasheet Parametric View All

LTC2341HUH-16#PBF Overview

16 位模数转换器 2 输入 1 SAR 32-QFN(5x5)

LTC2341HUH-16#PBF Parametric

Parameter NameAttribute value
category
MakerADI
series-
PackagePipe fittings
Number of digits16
Sample rate (per second)666k
Number of inputs2
input typedifference
Data interfaceLVDS - Serial, SPI
ConfigurationS/H-MUX-ADC
Ratio - S/H:ADC1:1
ArchitectureSAR
Reference typeoutside, inside
Voltage - Power Supply, Analog5V
Voltage - Power Supply, Digital5V
characteristicSynchronous sampling
Operating temperature-40°C ~ 125°C
Package/casing32-WFQFN Exposed Pad
Supplier device packaging32-QFN(5x5)
Installation typesurface mount type
Number of A/D converters1
Basic product numberLTC2341
FEATURES
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LTC2341-16
Dual, 16-Bit, 666ksps/ch
Differential SoftSpan ADC with
Wide Input Common Mode Range
DESCRIPTION
The
LTC
®
2341-16
is a 16-bit, low noise 2-channel simulta-
neous sampling successive approximation register (SAR)
ADC with differential, wide common mode range inputs.
Operating from a 5V supply and using the internal reference
and buffer, both channels of this SoftSpan
TM
ADC can be
independently configured on a conversion-by-conversion
basis to accept ±4.096V, 0V to 4.096V, ±2.048V, or 0V
to 2.048V signals. One channel may also be disabled to
increase throughput on the other channel.
The wide input common mode range and 105dB CMRR of
the LTC2341-16 analog inputs allow the ADC to directly
digitize a variety of signals, simplifying signal chain design.
This input signal flexibility, combined with ±1.25LSB INL,
no missing codes at 16 bits, and 93.4dB SNR, makes the
LTC2341-16 an ideal choice for many applications requir-
ing wide dynamic range.
The LTC2341-16 supports pin-selectable SPI CMOS (1.8V
to 5V) and LVDS serial interfaces. Either one or two lanes
of data output may be employed in CMOS mode, allowing
the user to optimize bus width and throughput.
L,
LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
SoftSpan is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners. Protected by U.S. Patents, including 7705765, 7961132, 8319673,
9197235.
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666ksps per Channel Throughput
Two Simultaneous Sampling Channels
±1.25LSB INL (Maximum)
Guaranteed 16-Bit, No Missing Codes
Differential, Wide Common Mode Range Inputs
Per-Channel SoftSpan Input Ranges:
±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V
±5V, 0V to 5V, ±2.5V, 0V to 2.5V
93.4dB Single-Conversion SNR (Typical)
−114dB THD (Typical) at f
IN
= 2kHz
105dB CMRR (Typical) at f
IN
= 200Hz
Rail-to-Rail Input Overdrive Tolerance
Guaranteed Operation to 125°C
Integrated Reference and Buffer (4.096V)
SPI CMOS (1.8V to 5V) and LVDS Serial I/O
Internal Conversion Clock, No Cycle Latency
74mW Power Dissipation (Typical)
32-Lead (5mm
×
5mm) QFN Package
APPLICATIONS
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Programmable Logic Controllers
Industrial Process Control
Medical Imaging
High Speed Data Acquisition
TYPICAL APPLICATION
5V
0.1µF
2.2µF
1.8V TO 5V
0.1µF
CMOS OR LVDS
I/O INTERFACE
V
DD
IN0+
S/H
IN0–
0V
BIPOLAR
0V
UNIPOLAR
IN1+
S/H
IN1–
0V
0V
TWO SIMULTANEOUS
SAMPLING CHANNELS
REFBUF
47µF
Integral Nonlinearity vs
Output
Code and Channel
vs Output
Code and Channel
1.00
0.75
0.50
INL ERROR (LSB)
0.25
0
–0.25
–0.50
SAMPLE
CLOCK
5V
ARBITRARY
FULLY
DIFFERENTIAL
5V
V
DDLBYP
LTC2341-16
OV
DD
LVDS/CMOS
PD
±4.096V RANGE
FULLY DIFFERENTIAL DRIVE (IN
= –IN
+
)
ALL CHANNELS
MUX
16-BIT
SAR ADC
5V
5V
REFIN
0.1µF
GND
SDO0
SDO1
SCKO
SCKI
SDI
CS
BUSY
CNV
234116 TA01a
–0.75
–1.00
–32768
–16384
0
16384
OUTPUT CODE
32768
234116 TA01b
DIFFERENTIAL INPUTS
IN+/IN–
WITH
WIDE INPUT COMMON MODE RANGE
234116f
For more information
www.linear.com/LTC2341-16
1

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