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What is LTC2327-16?

This electronic component, produced by the manufacturer "Linear Technology", performs the same function as "Pseudo-Differential Input ADC".


LTC2327-16 Datasheet PDF - Linear Technology

Part Number LTC2327-16
Description Pseudo-Differential Input ADC
Manufacturers Linear Technology 
Logo Linear Technology Logo 


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LTC2327-16
16-Bit, 500ksps, ±10.24V
True Bipolar, Pseudo-Differential
Input ADC with 93.5dB SNR
Features
Description
nn 500ksps Throughput Rate
nn ±1.5LSB INL (Max)
nn Guaranteed 16-Bit No Missing Codes
nn Pseudo-Differential Inputs
nn True Bipolar Input Ranges ±6.25V, ±10.24V, ±12.5V
nn 93.5dB SNR (Typ) at fIN = 2kHz
nn –111dB THD (Typ) at fIN = 2kHz
nn Guaranteed Operation to 125°C
nn Single 5V Supply
nn Low Drift (20ppm/°C Max) 2.048V Internal Reference
nn Onboard Single-Shot Capable Reference Buffer
nn No Pipeline Delay, No Cycle Latency
nn 1.8V to 5V I/O Voltages
nn SPI-Compatible Serial I/O with Daisy-Chain Mode
nn Internal Conversion Clock
nn Power Dissipation 36mW (Typ)
nn 16-Lead MSOP Package
Applications
nn Programmable Logic Controllers
nn Industrial Process Control
nn High Speed Data Acquisition
nn Portable or Compact Instrumentation
nn ATE
The LTC®2327-16 is a low noise, high speed 16-bit suc-
cessive approximation register (SAR) ADC with pseudo-
differential inputs. Operating from a single 5V supply, the
LTC2327-16 has a ±10.24V true bipolar input range, making
it ideal for high voltage applications which require a wide
dynamic range. The LTC2327-16 achieves ±1.5LSB INL
maximum, no missing codes at 16 bits with 93.5dB SNR.
The LTC2327-16 has an onboard single-shot capable
reference buffer and low drift (20ppm/°C max) 2.048V
temperature compensated reference. The LTC2327-16
also has a high speed SPI-compatible serial interface that
supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring
a daisy-chain mode. The fast 500ksps throughput with
no cycle latency makes the LTC2327-16 ideally suited
for a wide variety of high speed applications. An internal
oscillator sets the conversion time, easing external timing
considerations. The LTC2327-16 dissipates only 36mW
and automatically naps between conversions, leading to
reduced power dissipation that scales with the sampling
rate. A sleep mode is also provided to reduce the power
consumption of the LTC2327-16 to 300μW for further
power savings during inactive periods.
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.
Typical Application
+10.24V
–10.24V
+
LT®1468
5V
10µF
1.8V TO 5V
2.2µF
0.1µF
VDD
IN+
VDDLBYP OVDD
LTC2327-16
IN
RERFEBFUF
REFIN
GND
47µF 100nF
CHAIN
RDL/SDI
SDO
SCK
BUSY
CNV
232716 TA01
SAMPLE CLOCK
For more information www.linear.com/LTC2327-16
32k Point FFT fS = 500ksps,
fIN = 2kHz
0 SNR = 93.5dB
–20 THD = –113dB
SINAD = 93.4dB
–40 SFDR = –117dB
–60
–80
–100
–120
–140
–160
–180
0
50 100 150 200 250
FREQUENCY (kHz)
232716 TA01b
232716fa
1

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LTC2327-16 equivalent
LTC2327-16
Power Requirements The l denotes the specifications which apply over the full operating temperature
range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP
MAX UNITS
VDD
OVDD
IVDD
IIONVADPD
ISLEEP
PD
Supply Voltage
l 4.75
5
5.25
V
Supply Voltage
l 1.71
5.25 V
Supply Current
Supply Current
Nap Mode Current
Sleep Mode Current
Power Dissipation
Nap Mode
Sleep Mode
500ksps Sample Rate (IN+ = –10.24V, IN= 0V)
500ksps Sample Rate (IN+ = IN= 0V)
5C0o0nkvseprssioSnamDopnleeR(IaVtDeD(C+LIO=V2D0Dp, FIN) + = –10.24V, IN= 0V)
Sleep Mode (IVDD + IOVDD)
500ksps Sample Rate (IN+ = –10.24V, IN= 0V)
500ksps Sample Rate (IN+ = IN= 0V)
Conversion Done (IVDD + IOVDD, IN+ = –10.24V, IN= 0V)
Sleep Mode (IVDD + IOVDD)
l
l
l
l
l
l
11.4 14
7.2
0.1
8.4 10
60 225
mA
mA
mA
mA
μA
57 70 mW
36 mW
42 50 mW
0.3 1.1 mW
A DC Timing Characteristics The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. (Note 4)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
fSMPL
tCONV
tACQ
tHOLD
tCYC
tCNVH
tBUSYLH
tCNVL
tQUIET
tSCK
tSCKH
tSCKL
tSSDISCK
tHSDISCK
tSCKCH
tDSDO
Maximum Sampling Frequency
Conversion Time
Acquisition Time
Maximum Time between Acquisitions
Time Between Conversions
CNV High Time
CNVto BUSY Delay
Minimum Low Time for CNV
SCK Quiet Time from CNV
SCK Period
SCK High Time
SCK Low Time
SDI Setup Time From SCK
SDI Hold Time From SCK
SCK Period in Chain Mode
SDO Data Valid Delay from SCK
tHSDO
tDSDOBUSYL
tEN
tDIS
tWAKE
SDO Data Remains Valid Delay from SCK
SDO Data Valid Delay from BUSY
Bus Enable Time After RDL
Bus Relinquish Time After RDL
REFBUF Wake-Up Time
tACQ = tCYC – tHOLD (Note 11)
CL = 20pF
(Note 12)
(Note 11)
(Notes 12, 13)
(Note 12)
(Note 12)
tSCKCH = tSSDISCK + tDSDO (Note 12)
CL = 20pF, OVDD = 5.25V
CL = 20pF, OVDD = 2.5V
CL = 20pF, OVDD = 1.71V
CL = 20pF (Note 11)
CL = 20pF (Note 11)
(Note 12)
(Note 12)
CREFBUF = 47μF, CREFIN = 100nF
l 500 ksps
l1
1.5 µs
l 1.460
µs
l 540 ns
l2
µs
l 20
ns
l 13 ns
l 20
ns
l 20
ns
l 10
ns
l4
ns
l4
ns
l4
ns
l1
ns
l 13.5
ns
l 7.5 ns
l 8 ns
l 9.5 ns
l1
ns
l 5 ns
l 16 ns
l 13 ns
200 ms
For more information www.linear.com/LTC2327-16
232716fa
5


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LTC2327-16 electronic component.


Information Total 26 Pages
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