LTC1407

PRODUCTION

Serial 12-Bit/14-Bit, 3Msps Simultaneous Sampling ADCs with Shutdown

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Overview

  • 3Msps Sampling ADC with Two Simultaneous Differential Inputs
  • 1.5Msps Throughput per Channel
  • Low Power Dissipation: 14mW (Typ)
  • 3V Single Supply Operation
  • 2.5V Internal Bandgap Reference with External Overdrive
  • 3-Wire Serial Interface
  • Sleep (10µW) Shutdown Mode
  • Nap (3mW) Shutdown Mode
  • 80dB Common Mode Rejection at 100kHz
  • 0V to 2.5V Unipolar Input Range
  • Tiny 10-Lead MS Package

The LTC1407/LTC1407A are 12-bit/14-bit, 3Msps ADCs with two 1.5Msps simultaneously sampled differential inputs. The devices draw only 4.7mA from a single 3V supply and come in a tiny 10-lead MS package. A Sleep shutdown feature lowers power consumption to 10µW. The combination of speed, low power and tiny package makes the LTC1407/LTC1407A suitable for high speed, portable applications.

The LTC1407/LTC1407A contain two separate differential inputs that are sampled simultaneously on the rising edge of the CONV signal. These two sampled inputs are then converted at a rate of 1.5Msps per channel.

The 80dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.

The devices convert 0V to 2.5V unipolar inputs differentially. The absolute voltage swing for CH0+, CH0–, CH1+ and CH1– extends from ground to the supply voltage.

The serial interface sends out the two conversion results in 32 clocks for compatibility with standard serial interfaces.

Resolution INL (typ/max) Input Range
LTC1407 12 bits 0.25 LSB typ / 2 LSB max 0V-2.5V
LTC1407A 14 bits 0.5 LSB typ / 4 LSB max 0V-2.5V
LTC1407-1 12 bits 0.25 LSB typ / 2 LSB max ±1.25V
LTC1407A-1 14 bits 0.5 LSB typ / 4 LSB max ±1.25V

Applications

  • Telecommunications
  • Data Acquisition Systems
  • Uninterrupted Power Supplies
  • Multiphase Motor Control
  • I & Q Demodulation
  • Industrial Control
LTC1407
Serial 12-Bit/14-Bit, 3Msps Simultaneous Sampling ADCs with Shutdown
LTC1407 Block Diagram THD, 2nd and 3rd vs Input Frequency Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

Evaluation Software 1

LinearLab Tools

A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.

Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers & Isolators 1
LTM2883
PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
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Evaluation Kits

eval board
schematic 1
DC1082A-A

LTC1407A-1, 14-bit, 2-channel 3Msps SAR ADC (Bipolar, requires DC890)

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Product Details

DC1082A-A: Demo Board for the LTC1407A-1 Serial 14-Bit, 3Msps Simultaneous Sampling ADCs with Shutdown

eval board
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
DC890B

USB Data Acquisition Controller, for PScope Evaluation Kits (Up to 250Mbps, CMOS/LVDS)

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Product Details

DC890B - Demo Board

eval board
schematic 7
schematic 8
schematic 9
schematic 10
schematic 11
schematic 12
DC1082A-B

LTC1407A, 14-bit, 2-channel 3Msps SAR ADC (Unipolar, requires DC890)

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Product Details

DC1082A-B: Demo Board for the LTC1407A Serial 14-Bit, 3Msps Simultaneous Sampling ADCs with Shutdown.
DC1082A-A
LTC1407A-1, 14-bit, 2-channel 3Msps SAR ADC (Bipolar, requires DC890)
DC1082A-A - Schematic
DC890B
USB Data Acquisition Controller, for PScope Evaluation Kits (Up to 250Mbps, CMOS/LVDS)
DC890B Demo Board DC890B-2 Demo Board DC890B Demo Board DC890B Demo Board DC890_LVDS_XFMR - Schematic
DC1082A-B
LTC1407A, 14-bit, 2-channel 3Msps SAR ADC (Unipolar, requires DC890)
DC1082A-B Demo Board DC1082A-B Demo Board DC1082A-B Demo Board DC1082A-B Demo Board DC1082A-B Demo Board DC1082A-A - Schematic

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