LTC1864LACMS8#TRPBF Linear Technology, LTC1864LACMS8#TRPBF Datasheet

IC ADC 16-BIT 1CH 150KSPS 8-MSOP

LTC1864LACMS8#TRPBF

Manufacturer Part Number
LTC1864LACMS8#TRPBF
Description
IC ADC 16-BIT 1CH 150KSPS 8-MSOP
Manufacturer
Linear Technology
Datasheet

Specifications of LTC1864LACMS8#TRPBF

Number Of Bits
16
Sampling Rate (per Second)
150k
Data Interface
MICROWIRE™, Serial, SPI™
Number Of Converters
1
Power Dissipation (max)
400mW
Voltage Supply Source
Single Supply
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LTC1864LACMS8#TRPBFLTC1864LACMS8
Manufacturer:
LT
Quantity:
10 000
FEATURES
APPLICATIO S
TYPICAL APPLICATIO
16-Bit 150ksps ADCs in MSOP Package
Single 3V Supply
Low Supply Current: 450µA (Typ)
Auto Shutdown Reduces Supply Current
to 10µA at 1ksps
True Differential Inputs
1-Channel (LTC1864L) or 2-Channel (LTC1865L)
Versions
SPI/MICROWIRE
16-Bit Upgrade to 12-Bit LTC1285/LTC1288
Pin Compatible with 12-Bit LTC1860L/LTC1861L
No Minimum Data Transfer Rate
High Speed Data Acquisition
Portable or Compact Instrumentation
Low Power Battery-Operated Instrumentation
Isolated and/or Remote Data Acquisition
ANALOG INPUT
Single 3V Supply, 150ksps, 16-Bit Sampling ADC
0V TO 3V
1
2
3
4
V
IN
IN
GND
REF
+
LTC1864L
U
TM
Compatible Serial I/O
CONV
SDO
SCK
V
1µF
CC
1864 TA01
8
7
6
5
U
3V
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP
OR SHIFT REGISTERS
1- and 2-Channel ADCs in MSOP
DESCRIPTIO
MICROWIRE is a trademark of National Semiconductor Corporation.
The LTC
are offered in MSOP and SO-8 packages and operate on a
single 3V supply. At 150ksps, the supply current is only
450µA. The supply current drops at lower speeds because
the LTC1864L/LTC1865L automatically power down
between conversions. These 16-bit switched capacitor
successive approximation ADCs include sample-and-holds.
The LTC1864L has a differential analog input with an
external reference pin. The LTC1865L offers a software-
selectable 2-channel MUX and an external reference pin on
the MSOP version.
The 3-wire, serial I/O, small 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
®
µPower, 3V, 16-Bit, 150ksps
1864L/LTC1865L are 16-bit A/D converters that
1000
100
0.1
10
Supply Current vs Sampling Frequency
1
0.01
CONV LOW = 2µs
T
V
A
CC
= 25°C
= 2.7V
0.1
SAMPLING FREQUENCY (kHz)
U
LTC1864L/LTC1865L
1
10
100
1864L/65L TA02
1000
sn18645L 18645Lfs
1

Related parts for LTC1864LACMS8#TRPBF

LTC1864LACMS8#TRPBF Summary of contents

Page 1

... LTC and LT are registered trademarks of Linear Technology Corporation. MICROWIRE is a trademark of National Semiconductor Corporation. Supply Current vs Sampling Frequency 1000 ...

Page 2

LTC1864L/LTC1865L ABSOLUTE AXI U RATI GS Supply Voltage (V ) ................................................. 7V CC Ground Voltage Difference AGND, DGND LTC1865L MSOP Package ......... ±0.3V Analog Input ............... (GND – 0.3V Digital Input ................................ (GND – 0.3V) ...

Page 3

VERTER A D ULTIPLEXER CHARACTERISTICS The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are 2.7V 2.5V REF SCK SCK(MAX) PARAMETER CONDITIONS ...

Page 4

LTC1864L/LTC1865L RECO E DED OPERATI G CO DITIO S full operating temperature range, otherwise specifications are T SYMBOL PARAMETER V Supply Voltage CC f Clock Frequency SCK t Total Cycle Time CYC t Analog Input Sampling Time ...

Page 5

W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Sampling Frequency 1000 CONV LOW = 2µ 25° 2.7V CC 100 10 1 0.1 0.01 0 100 1000 SAMPLING FREQUENCY (kHz) 1864L/65L G01 ...

Page 6

LTC1864L/LTC1865L W U TYPICAL PERFOR A CE CHARACTERISTICS Change in Offset vs Reference Voltage 150kHz 25° 3. –5 –10 –15 – REFERENCE ...

Page 7

CTIO S LTC1864L V (Pin 1): Reference Input. The reference input defines REF the span of the A/D converter and must be kept free of noise with respect to GND. + – ...

Page 8

LTC1864L/LTC1865L U U FUNCTIONAL BLOCK DIAGRA PIN NAMES IN PARENTHESES REFER TO LTC1865L + IN (CH0) – IN (CH1) GND TEST CIRCUITS Load Circuit for dDO r f TEST POINT 3k SDO 20pF Voltage Waveforms ...

Page 9

U U APPLICATIO S I FOR ATIO LTC1864L OPERATION Operating Sequence The LTC1864L conversion cycle begins with the rising edge of CONV. After a period equal to t sion is finished. If CONV is left high after this time, the ...

Page 10

LTC1864L/LTC1865L U U APPLICATIO S I FOR ATIO LTC1865L OPERATION Operating Sequence The LTC1865L conversion cycle begins with the rising edge of CONV. After a period equal to t sion is finished. If CONV is left high after this time, ...

Page 11

U U APPLICATIO S I FOR ATIO GENERAL ANALOG CONSIDERATIONS Grounding The LTC1864L/LTC1865L should be used with an analog ground plane and single point grounding techniques. Do not use wire wrapping techniques to breadboard and evaluate the device. To achieve ...

Page 12

LTC1864L/LTC1865L U U APPLICATIO S I FOR ATIO sn18645L 18645Lfs ...

Page 13

U U APPLICATIO S I FOR ATIO Component Side Silk Screen for LTC1864L Evaluation Circuit Component Side Showing Traces (Note Wider Traces on Analog Side) Ground Layer with Separate Analog and Digital Grounds W U (Note Almost No Analog Traces ...

Page 14

LTC1864L/LTC1865L PACKAGE DESCRIPTIO 5.23 (.206) MIN 0.42 ± 0.04 (.0165 ± .0015) TYP RECOMMENDED SOLDER PAD LAYOUT 0.254 (.010) GAUGE PLANE 0.18 (.077) NOTE: 1. DIMENSIONS IN MILLIMETER/(INCH) 2. DRAWING NOT TO SCALE 3. DIMENSION DOES NOT INCLUDE MOLD FLASH, ...

Page 15

... LEAD COPLANARITY (BOTTOM OF LEADS AFTER FORMING) SHALL BE 0.102mm (.004") MAX Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. ...

Page 16

... Slew Rate, 75µV/125µV Offset 140V/µs Slew Rate, 3.5nV/√Hz Noise, – 80dBc Distortion 350V/µs Slew Rate, – 90dBc Distortion at 5MHz www.linear.com ● 1µ SCK SDO ADC CONTROL 1864L/65L TA03 sn18645L 18645Lfs LT/TP 0403 2K • PRINTED IN USA © LINEAR TECHNOLOGY CORPORATION 2001 ...

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