LTC1864L| Datasheet

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)

LTC1864L/LTC1865L uPower, 3V, 16-Bit, 150ksps 1- and 2-Channel ADCs in MSOP

FEATURES

DESCRIPTIO

16-Bit 150ksps ADCs in MSOP Package Single 3V Supply Low Supply Current: 450uA (Typ) Auto Shutdown Reduces Supply Current to 10uA at 1ksps True Differential Inputs 1-Channel (LTC1864L) or 2-Channel (LTC1865L) Versions SPI/MICROWIRETM Compatible Serial I/O 16-Bit Upgrade to 12-Bit LTC1285/LTC1288 Pin Compatible with 12-Bit LTC1860L/LTC1861L No Minimum Data Transfer Rate

The LTC 1864L/LTC1865L are 16-bit A/D converters that are offered in MSOP and SO-8 packages and operate on a single 3V supply. At 150ksps, the supply current is only 450uA. 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 softwareselectable 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. MICROWIRE is a trademark of National Semiconductor Corporation.

APPLICATIO S

High Speed Data Acquisition Portable or Compact Instrumentation Low Power Battery-Operated Instrumentation Isolated and/or Remote Data Acquisition

TYPICAL APPLICATIO

Supply Current vs Sampling Frequency Single 3V Supply, 150ksps, 16-Bit Sampling ADC
1uF
SUPPLY CURRENT (uA)

1000

CONV LOW = 2us TA = 25 C VCC = 2.7V

3V

100

LTC1864L 1 2 ANALOG INPUT 0V TO 3V 3 4 VREF IN + IN GND VCC SCK SDO CONV 8 7 6 5
1864 TA01

10

SERIAL DATA LINK TO ASIC, PLD, MPU, DSP OR SHIFT REGISTERS

1

0.1 0.01

0.1 100 1 10 SAMPLING FREQUENCY (kHz)

U
1000
1864L/65L TA02

U

U

sn18645L 18645Lfs

1

LTC1864L Datasheet linear Download PDF

Add this permalink to your bookmarks for future download of LTC1864L datasheet

Permalink: http://datasheet.emcelettronica.com/linear/LTC1864L

LTC1864L DATASHEET