LTC2372-16 ADC Datasheet

LTC2372-16 Datasheet PDF, Equivalent


Part Number

LTC2372-16

Description

8-Channel SAR ADC

Manufacture

Linear

Total Page 30 Pages
PDF Download
Download LTC2372-16 Datasheet PDF


LTC2372-16
LTC2372-16
16-Bit, 500ksps, 8-Channel
SAR ADC with 96dB SNR
Features
nn 500ksps Throughput Rate
nn 16-Bit Resolution with No Missing Codes
nn 8-Channel Multiplexer with Selectable Input Range
nn Fully Differential (±4.096V)
nn Pseudo-Differential Unipolar (0V to 4.096V)
nn Pseudo-Differential Bipolar (±2.048V)
nn INL: ±1LSB (Maximum)
nn SNR: 96dB (Fully Differential)/93.5dB (Pseudo-
Differential) (Typical) at fIN = 1kHz
nn THD: –110dB (Typical) at fIN = 1kHz
nn Programmable Sequencer
nn Selectable Digital Gain Compression
nn Single 5V Supply with 1.8V to 5V I/O Voltages
nn SPI-Compatible Serial I/O
nn Onboard 2.048V Reference and Reference Buffer
nn No Pipeline Delay, No Cycle Latency
nn Power Dissipation 27mW (Typical)
nn Guaranteed Operation to 125°C
nn 32-Lead 5mm × 5mm QFN Package
Applications
nn Programmable Logic Controllers
nn Industrial Process Control
nn High Speed Data Acquisition
nn Portable or Compact Instrumentation
nn ATE
Description
The LTC®2372-16 is a low noise, high speed, 8-channel
16-bit successive approximation register (SAR) ADC. Oper-
ating from a single 5V supply, the LTC2372-16 has a highly
configurable, low crosstalk 8-channel input multiplexer,
supporting fully differential, pseudo-differential unipolar
and pseudo-differential bipolar analog input ranges. The
LTC2372-16 achieves ±1LSB INL (maximum) in all input
ranges, no missing codes at 16-bits and 96dB (fully
differential)/93.5dB (pseudo-differential) SNR (typical).
The LTC2372-16 has an onboard low drift (20ppm/°C
max) 2.048V temperature-compensated reference and
a single-shot capable reference buffer. The LTC2372-16
also has a high speed SPI-compatible serial interface that
supports 1.8V, 2.5V, 3.3V and 5V logic through which a
sequencer with a depth of 16 may be programmed. An
internal oscillator sets the conversion time, easing external
timing considerations. The LTC2372-16 dissipates only
27mW 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 LTC2372-16 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, 8319673.
Typical Application
4.096V
0V
0V
4.096V
0V
4.096V
0V
4.096V
0V
2.048V
10Ω
+ 1200pF
10Ω 1200pF
5V
10µF
2.2µF
1.8V TO 5V
0.1µF
CH0
CH1
CH2
CH3
CH4
MUX
CH5
CH6
CH7
COM
VDD VDDLBYP OVDD
LTC2372-16
RESET
RDL
+ 16-BIT
–SAMPLING ADC
REFBUF REFIN GND
SDO
SCK
SDI
BUSY
CNV
47µF 0.1µF
237216 TA01a
SAMPLE
CLOCK
For more information www.linear.com/LTC2372-16
1.0
0.8
0.6
0.4
0.2
–0.0
–0.2
–0.4
–0.6
–0.8
–1.0
0
Integral Nonlinearity
vs Output Code
FULLY DIFFERENTIAL
BIPOLAR
UNIPOLAR
16384 32768 49152 65536
OUTPUT CODE
237216 TA01b
237216f
1

LTC2372-16
LTC2372-16
Absolute Maximum Ratings
(Notes 1, 2)
Supply Voltage (VDD).................................................. 6V
Supply Voltage (OVDD)................................................ 6V
Analog Input Voltage (Note 3)
CH0 to CH7, COM......... (GND – 0.3V) to (VDD + 0.3V)
REFBUF........................ (GND – 0.3V) to (VDD + 0.3V)
REFIN....................................................................... 2.8V
Digital Input Voltage
(Note 3)............................(GND –0.3V) to (OVDD + 0.3V)
Digital Output Voltage
(Note 3)............................(GND –0.3V) to (OVDD + 0.3V)
Power Dissipation............................................... 500mW
Operating Temperature Range
LTC2372C.................................................0°C to 70°C
LTC2372I..............................................–40°C to 85°C
LTC2372H...........................................–40°C to 125°C
Storage Temperature Range...................–65°C to 150°C
Pin Configuration
TOP VIEW
32 31 30 29 28 27 26 25
CH2 1
24 RESET
CH3 2
MUXOUT+ 3
ADCIN+ 4
ADCIN5
MUXOUT6
23 GND
22 SDO
33 21 SCK
20 SDI
19 BUSY
CH4 7
18 RDL
CH5 8
17 GND
9 10 11 12 13 14 15 16
UH PACKAGE
32-LEAD (5mm × 5mm) PLASTIC QFN
TJMAX = 125°C, θJA = 44°C/W
EXPOSED PAD IS GND (PIN 33) MUST BE SOLDERED TO PCB
Order Information
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2372CUH-16#PBF
LTC2372CUH-16#TRPBF 237216
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2372IUH-16#PBF
LTC2372IUH-16#TRPBF 237216
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC2372HUH-16#PBF
LTC2372HUH-16#TRPBF 237216
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 125°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
Consult LTC Marketing for information on nonstandard lead based finish parts.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
237216f
2 For more information www.linear.com/LTC2372-16


Features LTC2372-16 16-Bit, 500ksps, 8-Channel SA R ADC with 96dB SNR Features nn 500ksp s Throughput Rate nn 16-Bit Resolution with No Missing Codes nn 8-Channel Mult iplexer with Selectable Input Range nn Fully Differential (±4.096V) nn Ps eudo-Differential Unipolar (0V to 4.096 V) nn Pseudo-Differential Bipolar (± 2.048V) nn INL: ±1LSB (Maximum) nn SNR : 96dB (Fully Differential)/93.5dB (Pse udoDifferential) (Typical) at fIN = 1kH z nn THD: –110dB (Typical) at fIN = 1 kHz nn Programmable Sequencer nn Select able Digital Gain Compression nn Single 5V Supply with 1.8V to 5V I/O Voltages nn SPI-Compatible Serial I/O nn Onboar d 2.048V Reference and Reference Buffer nn No Pipeline Delay, No Cycle Latency nn Power Dissipation 27mW (Typical) nn Guaranteed Operation to 125°C nn 32-L ead 5mm × 5mm QFN Package Applications nn Programmable Logic Controllers nn I ndustrial Process Control nn High Speed Data Acquisition nn Portable or Compac t Instrumentation nn ATE Description The LTC®2372-16 is a low noise, .
Keywords LTC2372-16, datasheet, pdf, Linear, 8-Channel, SAR, ADC, TC2372-16, C2372-16, 2372-16, LTC2372-1, LTC2372-, LTC2372, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




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