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LTC1197IS8

Description
10-Bit, 500ksps ADCs in MSOP with Auto Shutdown
CategoryAnalog mixed-signal IC    converter   
File Size340KB,28 Pages
ManufacturerLinear ( ADI )
Websitehttp://www.analog.com/cn/index.html
Download Datasheet Parametric View All

LTC1197IS8 Overview

10-Bit, 500ksps ADCs in MSOP with Auto Shutdown

LTC1197IS8 Parametric

Parameter NameAttribute value
Brand NameLinear Technology
Is it Rohs certified?incompatible
MakerLinear ( ADI )
Parts packaging codeSOIC
package instructionSOP, SOP8,.25
Contacts8
Manufacturer packaging codeS8
Reach Compliance Codenot_compliant
ECCN codeEAR99
Maximum analog input voltage5.05 V
Minimum analog input voltage-0.05 V
Maximum conversion time1.4 µs
Converter typeADC, SUCCESSIVE APPROXIMATION
JESD-30 codeR-PDSO-G8
JESD-609 codee0
length4.9025 mm
Maximum linear error (EL)0.0977%
Humidity sensitivity level1
Number of analog input channels1
Number of digits10
Number of functions1
Number of terminals8
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output bit codeBINARY
Output formatSERIAL
Package body materialPLASTIC/EPOXY
encapsulated codeSOP
Encapsulate equivalent codeSOP8,.25
Package shapeRECTANGULAR
Package formSMALL OUTLINE
Peak Reflow Temperature (Celsius)235
power supply5 V
Certification statusNot Qualified
Sampling rate0.5 MHz
Sample and hold/Track and holdSAMPLE
Maximum seat height1.752 mm
Nominal supply voltage5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch1.27 mm
Terminal locationDUAL
Maximum time at peak reflow temperature20
width3.899 mm
LTC1197/LTC1197L
LTC1199/LTC1199L
10-Bit, 500ksps ADCs in
MSOP with Auto Shutdown
FEATURES
s
s
s
s
DESCRIPTIO
s
s
s
s
8-Pin MSOP and SO Packages
10-Bit Resolution at 500ksps
Single Supply: 5V or 3V
Low Power at Full Speed:
25mW Typ at 5V
2.2mW Typ at 2.7V
Auto Shutdown Reduces Power Linearly
at Lower Sample Rates
10-Bit Upgrade to 8-Bit LTC1196/LTC1198
SPI and MICROWIRE
TM
Compatible Serial I/O
Low Cost
The LTC
®
1197/LTC1197L/LTC1199/LTC1199L are
10-bit A/D converters with sampling rates up to 500kHz.
They have 2.7V (L) and 5V versions and are offered in
8-pin MSOP and SO packages. Power dissipation is typi-
cally only 2.2mW at 2.7V (25mW at 5V) during full speed
operation. The automatic power down reduces supply
current linearly as sample rate is reduced. These 10-bit,
switched-capacitor, successive approximation ADCs in-
clude a sample-and-hold. The LTC1197/LTC1197L have a
differential analog input with an adjustable reference pin.
The LTC1199/LTC1199L offer a software-selectable
2-channel MUX.
The 3-wire serial I/O, MSOP and SO-8 packages, 2.7V
operation and extremely high sample rate-to-power ratio
make these ADCs ideal choices for compact, low power
high speed systems.
These circuits can be used in ratiometric applications or
with external references. The high impedance analog
inputs and the ability to operate with reduced spans below
1V full scale (LTC1197/LTC1197L) allow direct connec-
tion to signal sources in many applications, eliminating
the need for gain stages.
, LTC and LT are registered trademarks of Linear Technology Corporation.
MICROWIRE is a trademark of National Semiconductor Corporation.
APPLICATI
s
s
s
S
High Speed Data Acquisition
Portable or Compact Instrumentation
Low Power or Battery-Operated Instrumentation
TYPICAL APPLICATI
1µF
Supply Current vs Sampling Frequency
Single 2.7V Supply, 250ksps, 10-Bit Sampling ADC
2.7V
10000
1000
SUPPLY CURRENT (µA)
100
LTC1197L
1
2
ANALOG INPUT
0V TO 2.7V RANGE 3
4
CS
+IN
– IN
GND
V
CC
CLK
D
OUT
V
REF
8
7
6
5
1197/99 TA01
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
10
V
CC
= 2.7V
f
CLK
= 3.5MHz
1
0.1
0.01
0.1
10
100
1
SAMPLING FREQUENCY (kHz)
U
V
CC
= 5V
f
CLK
= 7.2MHz
1000
1197/99 G03
UO
UO
1
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