LTC2373-16 ADC Datasheet

LTC2373-16 Datasheet PDF, Equivalent


Part Number

LTC2373-16

Description

8-Channel SAR ADC

Manufacture

Analog Devices

Total Page 30 Pages
Datasheet
Download LTC2373-16 Datasheet


LTC2373-16
LTC2373-16
16-Bit, 1Msps, 8-Channel
SAR ADC with 96dB SNR
Features
n 1Msps Throughput Rate
n 16-Bit Resolution with No Missing Codes
n 8-Channel Multiplexer with Selectable Input Range
n Fully Differential (±4.096V)
n Pseudo-Differential Unipolar (0V to 4.096V)
n Pseudo-Differential Bipolar (±2.048V)
n INL: ±1LSB (Maximum)
n SNR: 96dB (Fully Differential)/93.4dB (Pseudo-
Differential) (Typical) at fIN = 1kHz
n THD: –110dB (Typical) at fIN = 1kHz
n Programmable Sequencer
n Selectable Digital Gain Compression
n Single 5V Supply with 1.8V to 5V I/O Voltages
n SPI-Compatible Serial I/O
n Onboard 2.048V Reference and Reference Buffer
n No Pipeline Delay, No Cycle Latency
n Power Dissipation 40mW (Typical)
n Guaranteed Operation to 125°C
n 32-Lead 5mm × 5mm QFN Package
Applications
n Programmable Logic Controllers
n Industrial Process Control
n High Speed Data Acquisition
n Portable or Compact Instrumentation
n ATE
Description
The LTC®2373-16 is a low noise, high speed, 8-channel
16-bit successive approximation register (SAR) ADC. Oper-
ating from a single 5V supply, the LTC2373-16 has a highly
configurable, low crosstalk 8-channel input multiplexer,
supporting fully differential, pseudo-differential unipolar
and pseudo-differential bipolar analog input ranges. The
LTC2373-16 achieves ±1LSB INL (maximum) in all input
ranges, no missing codes at 16-bits and 96dB (fully dif-
ferential)/ 93.4dB (pseudo-differential) SNR (typical).
The LTC2373-16 has an onboard low drift (20ppm/°C max)
2.048V temperature-compensated reference and a single-
shot capable reference buffer. The LTC2373-16 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 os-
cillator sets the conversion time, easing external timing
considerations. The LTC2373-16 dissipates only 40mW
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 LTC2373-16 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 Analog Devices, Inc. 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
5V
10µF
2.2µF
1.8V TO 5V
0.1µF
+
10Ω
1200pF
10Ω 1200pF
CH0
CH1
CH2
CH3
CH4
MUX
CH5
CH6
CH7
COM
VDD VDDLBYP OVDD
LTC2373-16
RESET
RDL
+ 16-BIT
–SAMPLING ADC
REFBUF REFIN GND
SDO
SCK
SDI
BUSY
CNV
SAMPLE
CLOCK
47µF 0.1µF
237316 TA01a
For more information www.linear.com/LTC2373-16
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
237316 TA01b
237316fa
1

LTC2373-16
LTC2373-16
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
LTC2373C.................................................0°C to 70°C
LTC2373I..............................................–40°C to 85°C
LTC2373H...........................................–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 http://www.linear.com/product/LTC2373-16#orderinfo
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2373CUH-16#PBF
LTC2373CUH-16#TRPBF 237316
32-Lead (5mm × 5mm) Plastic QFN
0°C to 70°C
LTC2373IUH-16#PBF
LTC2373IUH-16#TRPBF 237316
32-Lead (5mm × 5mm) Plastic QFN
–40°C to 85°C
LTC2373HUH-16#PBF
LTC2373HUH-16#TRPBF 237316
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.
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/. Some packages are available in 500 unit reels through
designated sales channels with #TRMPBF suffix.
2
For more information www.linear.com/LTC2373-16
237316fa


Features LTC2373-16 16-Bit, 1Msps, 8-Channel SAR ADC with 96dB SNR Features n 1Msps Th roughput Rate n 16-Bit Resolution with No Missing Codes n 8-Channel Multiple xer with Selectable Input Range n Fu lly Differential (±4.096V) n Pseudo -Differential Unipolar (0V to 4.096V) n Pseudo-Differential Bipolar (±2.04 8V) n INL: ±1LSB (Maximum) n SNR: 96 dB (Fully Differential)/93.4dB (Pseudo- Differential) (Typical) at fIN = 1kHz n THD: –110dB (Typical) at fIN = 1kH z n Programmable Sequencer n Selectab le Digital Gain Compression n Single 5 V Supply with 1.8V to 5V I/O Voltages n SPI-Compatible Serial I/O n Onboard 2.048V Reference and Reference Buffer n No Pipeline Delay, No Cycle Latency n Power Dissipation 40mW (Typical) n G uaranteed Operation to 125°C n 32-Lead 5mm × 5mm QFN Package Applications n Programmable Logic Controllers n Indu strial Process Control n High Speed Da ta Acquisition n Portable or Compact I nstrumentation n ATE Description The LTC®2373-16 is a low noise, hig.
Keywords LTC2373-16, datasheet, pdf, Analog Devices, 8-Channel, SAR, ADC, TC2373-16, C2373-16, 2373-16, LTC2373-1, LTC2373-, LTC2373, Equivalent, stock, pinout, distributor, price, schematic, inventory, databook, Electronic, Components, Parameters, parts, cross reference, chip, Semiconductor, circuit, Electric, manual, substitute




@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)