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LTC1860CS8#PBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
LTC1860/LTC1861
1
18601fb
For more information www.linear.com/LTC1860
Typical applicaTion
FeaTures
applicaTions
DescripTion
µPower, 12-Bit, 250ksps
1- and 2-Channel ADCs in MSOP
The LT C
®
1860/LTC1861 are 12-bit A/D converters that are
offered in MSOP and SO-8 packages and operate on a single
5V supply. At 250ksps, the supply current is only 850µA.
The supply current drops at lower speeds because the
LTC1860/LTC1861 automatically power down to a typical
supply current of 1nA between conversions. These 12-bit
switched capacitor successive approximation ADCs include
sample-and-holds. The LTC1860 has a differential analog
input with an adjustable reference pin. The LTC1861 offers
a software-selectable 2-channel MUX and an adjustable
reference pin on the MSOP version.
The 3-wire, serial I/O, MSOP or SO-8 package and
extremely high sample rate-to-power ratio make these
ADCs ideal choices for compact, low power, high speed
systems.
These ADCs can be used in ratiometric applications or with
external references. The high impedance analog inputs and
the ability to operate with reduced spans down to 1V full
scale, allow direct connection to signal sources in many
applications, eliminating the need for external gain stages.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Single 5V Supply, 250ksps, 12-Bit Sampling ADC
n
12-Bit 250ksps ADCs in MSOP Package
n
Single 5V Supply
n
Low Supply Current: 850µA (Typ)
n
Auto Shutdown Reduces Supply Current
to 2µA at 1ksps
n
True Differential Inputs
n
1-Channel (LTC1860) or 2-Channel (LTC1861)
Versions
n
SPI/MICROWIRE
TM
Compatible Serial I/O
n
High Speed Upgrade to LTC1286/LTC1298
n
Pin Compatible with 16-Bit LTC1864/LTC1865
n
Guaranteed Operation to 125°C (MSOP Package)
n
High Speed Data Acquisition
n
Portable or Compact Instrumentation
n
Low Power Battery-Operated Instrumentation
n
Isolated and/or Remote Data Acquisition
Supply Current vs Sampling Frequency
1
2
3
4
8
7
6
5
V
REF
IN
+
IN
–
GND
V
CC
SCK
SDO
CONV
LTC1860
1860 TA01
ANALOG INPUT
0V TO 5V
5V
1µF
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
SAMPLING FREQUENCY (kHz)
0.01
SUPPLY CURRENT (µA)
1000
100
10
1
0.1
0.01
100
1860 TA02
0.1
1
10
1000
LTC1860/LTC1861
2
18601fb
For more information www.linear.com/LTC1860
absoluTe MaxiMuM raTings
Supply Voltage (V
CC
) .................................................7V
Ground Voltage Difference
AGND, DGND LTC1861 MSOP Package .............±0.3V
Analog Input ....................(GND – 0.3V) to (V
CC
+ 0.3V)
Digital Input .................................... (GND – 0.3V) to 7V
Digital Output ................... (GND – 0.3V) to (V
CC
+ 0.3V)
(Notes 1, 2)
1
2
3
4
V
REF
IN
+
IN¯
GND
8
7
6
5
V
CC
SCK
SDO
CONV
TOP VIEW
MS8 PACKAGE
8-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 210°C/W
1
2
3
4
5
CONV
CH0
CH1
AGND
DGND
10
9
8
7
6
V
REF
V
CC
SCK
SDO
SDI
TOP VIEW
MS PACKAGE
10-LEAD PLASTIC MSOP
T
JMAX
= 150°C, θ
JA
= 210°C/W
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
V
REF
IN
+
IN
–
GND
V
CC
SCK
SDO
CONV
T
JMAX
= 150°C, θ
JA
= 175°C/W
1
2
3
4
8
7
6
5
TOP VIEW
S8 PACKAGE
8-LEAD PLASTIC SO
CONV
CH0
CH1
GND
V
CC
SCK
SDO
SDI
T
JMAX
= 150°C, θ
JA
= 175°C/W
pin conFiguraTion
Power Dissipation .............................................. 400mW
Operating Temperature Range
LTC1860C/LTC1861C ...............................0°C to 70°C
LTC1860I/LTC1861I .......................... –40°C to 85°C
LTC1860H/LTC1861H .........................–40°C to 125°C
Storage Temperature Range ...................–65°C to 150°C
Lead Temperature (Soldering, 10 sec) ..................300°C
LTC1860 LTC1861
LTC1860 LTC1861
LTC1860/LTC1861
3
18601fb
For more information www.linear.com/LTC1860
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC1860CMS8#PBF LTC1860CMS8#TRPBF LTWR 8-Lead Plastic MSOP 0°C to 70°C
LTC1860IMS8#PBF LTC1860IMS8#TRPBF LTWS 8-Lead Plastic MSOP –40°C to 85°C
LTC1860HMS8#PBF LTC1860HMS8#TRPBF LTWS 8-Lead Plastic MSOP –40°C to 125°C
LTC1860CS8#PBF LTC1860CS8#TRPBF 1860 8-Lead Plastic SO 0°C to 70°C
LTC1860IS8#PBF LTC1860IS8#TRPBF 1860I 8-Lead Plastic SO –40°C to 85°C
LTC1861CMS#PBF LTC1861CMS#TRPBF LTWT 10-Lead Plastic MSOP 0°C to 70°C
LTC1861IMS#PBF LTC1861IMS#TRPBF LTWU 10-Lead Plastic MSOP –40°C to 85°C
LTC1861HMS#PBF LTC1861HMS#TRPBF LTWU 10-Lead Plastic MSOP –40°C to 125°C
LTC1861CS8#PBF LTC1861CS8#TRPBF 1861 8-Lead Plastic SO 0°C to 70°C
LTC1861IS8#PBF LTC1861IS8#TRPBF 1861I 8-Lead Plastic SO –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.
orDer inForMaTion
http://www.linear.com/product/LTC1860#orderinfo
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

LTC1860CS8#PBF

Mfr. #:
Buy LTC1860CS8#PBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Analog to Digital Converters - ADC 12-bit, 250ksps ADC in MSOP
Lifecycle:
New from this manufacturer.
Delivery:
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