900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




Linear Technology Electronic Components Datasheet

LTC2378IDE-18 Datasheet

Low Power SAR ADC

No Preview Available !

Features
n 1Msps Throughput Rate
n ±1.75LSB INL (Max)
n Guaranteed 18-Bit No Missing Codes
n Low Power: 13.5mW at 1Msps, 13.5µW at 1ksps
n 102dB SNR (typ) at fIN = 2kHz
n 124dB THD (typ) at fIN = 2kHz
n Digital Gain Compression (DGC)
n Guaranteed Operation to 125°C
n 2.5V Supply
n Fully Differential Input Range ±VREF
n VREF Input Range from 2.5V to 5.1V
n No Pipeline Delay, No Cycle Latency
n 1.8V to 5V I/O Voltages
n SPI-Compatible Serial I/O with Daisy-Chain Mode
n Internal Conversion Clock
n 16-Lead MSOP and 4mm × 3mm DFN Packages
Applications
n Medical Imaging
n High Speed Data Acquisition
n Portable or Compact Instrumentation
n Industrial Process Control
n Low Power Battery-Operated Instrumentation
n ATE
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.
LTC2378-18
18-Bit, 1Msps, Low Power
SAR ADC with 102dB SNR
Description
The LTC®2378-18 is a low noise, low power, high speed
18-bit successive approximation register (SAR) ADC. Op-
erating from a 2.5V supply, the LTC2378-18 has a ±VREF
fully differential input range with VREF ranging from 2.5V
to 5.1V. The LTC2378-18 consumes only 13.5mW and
achieves ±1.75LSB INL maximum, no missing codes at
18 bits with 102dB SNR.
The LTC2378-18 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 1Msps through-
put with no cycle latency makes the LTC2378-18 ideally
suited for a wide variety of high speed applications. An
internal oscillator sets the conversion time, easing external
timing considerations. The LTC2378-18 automatically pow-
ers down between conversions, leading to reduced power
dissipation that scales with the sampling rate.
The LTC2378-18 features a unique digital gain compres-
sion (DGC) function, which eliminates the driver amplifier’s
negative supply while preserving the full resolution of the
ADC. When enabled, the ADC performs a digital scaling
function that maps zero-scale code from 0V to 0.1 • VREF
and full-scale code from VREF to 0.9 • VREF. For a typical
reference voltage of 5V, the full-scale input range is now
0.5V to 4.5V, which provides adequate headroom for
powering the driving amplifier from a single 5.5V supply.
Typical Application
2.5V 1.8V TO 5V
10µF
0.1µF
VREF
+
20Ω
6800pF
VDD OVDD CHAIN
IN+
RDL/SDI
0V
SDO
VREF
0V
3300pF
LTC2378-18
SCK
20Ω
IN
6800pF
REF
BUSY
CNV
GND REF/DGC
2.5V TO 5.1V
237818 TA01a
47µF
(X5R, 0805 SIZE)
SAMPLE CLOCK
VREF
For more information www.linear.com/LTC2378-18
32k Point FFT fS = 1Msps, fIN = 2kHz
0
SNR = 102.3dB
–20
THD = –124dB
SINAD = 102.2dB
–40
SFDR = 126dB
–60
–80
–100
–120
–140
–160
–180
0
100 200 300 400 500
FREQUENCY (kHz)
237818 TA01b
237818fa
1


Linear Technology Electronic Components Datasheet

LTC2378IDE-18 Datasheet

Low Power SAR ADC

No Preview Available !

LTC2378-18
Absolute Maximum Ratings
(Notes 1, 2)
Supply Voltage (VDD)................................................2.8V
Supply Voltage (OVDD).................................................6V
Reference Input (REF)..................................................6V
Analog Input Voltage (Note 3)
IN+, IN.......................... (GND –0.3V) to (REF + 0.3V)
REF/DGC Input (Note 3)..... (GND –0.3V) to (REF + 0.3V)
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
LTC2378C................................................. 0°C to 70°C
LTC2378I..............................................–40°C to 85°C
LTC2378H........................................... –40°C to 125°C
Storage Temperature Range................... –65°C to 150°C
Pin Configuration
CHAIN 1
VDD 2
GND 3
IN+ 4
IN5
GND 6
REF 7
REF/DGC 8
TOP VIEW
17
GND
16 GND
15 OVDD
14 SDO
13 SCK
12 RDL/SDI
11 BUSY
10 GND
9 CNV
DE PACKAGE
16-LEAD (4mm × 3mm) PLASTIC DFN
TJMAX = 150°C, θJA = 40°C/W
EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB
TOP VIEW
CHAIN 1
VDD 2
GND 3
IN+ 4
IN5
GND 6
REF 7
REF/DGC 8
16 GND
15 OVDD
14 SDO
13 SCK
12 RDL/SDI
11 BUSY
10 GND
9 CNV
MS PACKAGE
16-LEAD PLASTIC MSOP
TJMAX = 150°C, θJA = 110°C/W
Order Information http://www.linear.com/product/LTC2348-18#orderinfo
LEAD FREE FINISH
TAPE AND REEL
PART MARKING*
PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC2378CMS-18#PBF
LTC2378CMS-18#TRPBF 237818
16-Lead Plastic MSOP
0°C to 70°C
LTC2378IMS-18#PBF
LTC2378IMS-18#TRPBF 237818
16-Lead Plastic MSOP
–40°C to 85°C
LTC2378HMS-18#PBF
LTC2378HMS-18#TRPBF 237818
16-Lead Plastic MSOP
–40°C to 125°C
LTC2378CDE-18#PBF
LTC2378CDE-18#TRPBF 23788
16-Lead (4mm × 3mm) Plastic DFN
0°C to 70°C
LTC2378IDE-18#PBF
LTC2378IDE-18#TRPBF 23788
16-Lead (4mm × 3mm) Plastic DFN
–40°C to 85°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.
237818fa
2
For more information www.linear.com/LTC2378-18


Part Number LTC2378IDE-18
Description Low Power SAR ADC
Maker Linear Technology
PDF Download

LTC2378IDE-18 Datasheet PDF






Similar Datasheet

1 LTC2378IDE-16 Low Power SAR ADC
Linear Technology
2 LTC2378IDE-18 Low Power SAR ADC
Linear Technology





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy