LTC1609 - 16-Bit, 200ksps, Serial Sampling ADC


  • Sample Rate: 200ksps
  • Input Ranges
    Unipolar: 0V to 10V, 0V to 5V and 0V to 4V
    Bipolar: ±10V, ±5V and ±3.3V
  • Guaranteed No Missing Codes
  • Serial I/O
  • Single 5V Supply
  • Power Dissipation: 65mW Typ
  • Power Down Mode: 50µW
  • SNR: 87dB Typ
  • Operates with Internal or External Reference
  • 28-Pin SSOP and 20-Pin SSO Packages
  • Improved 2nd Source to ADS7809 and AD977A

Typical Application

LTC1609 Typical Application
LTC1609 Typical Application


The LTC®1609 is a 200ksps, serial sampling 16-bit A/D converter that draws only 65mW (typical) from a single 5V supply. This easy-to-use device includes a sample-and- hold, a precision reference, a switched capacitor successive approximation A/D and trimmed internal clock.

The input range is specified for bipolar inputs of ±10V, ±5V and ±3.3V and unipolar inputs of 0V to 10V, 0V to 5V and 0V to 4V. Maximum DC specs include ±2LSB INL and 16-bit no missing codes overtemperature. It has a typical signal-to-noise ratio of 87dB.

The ADC has a high speed serial interface. The serial output data can be clocked out using either the internal serial shift clock or be clocked out by an external shift clock. A separate convert start input(R/C) and a data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.



CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
LTC1609ACSW#PBF SW-20 SW C 05-08-1620 (SW20) Yes
LTC1609ACSW#TRPBF SW-20 SW C 05-08-1620 (SW20) Yes
LTC1609AISW#PBF SW-20 SW I 05-08-1620 (SW20) Yes
LTC1609AISW#TRPBF SW-20 SW I 05-08-1620 (SW20) Yes
LTC1609CG#PBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC1609CG#TRPBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC1609CSW#PBF SW-20 SW C 05-08-1620 (SW20) Yes
LTC1609CSW#TRPBF SW-20 SW C 05-08-1620 (SW20) Yes
LTC1609IG#PBF SSOP-28 G I 05-08-1640 (G28) Yes
LTC1609IG#TRPBF SSOP-28 G I 05-08-1640 (G28) Yes
LTC1609ISW#PBF SW-20 SW I 05-08-1620 (SW20) Yes
LTC1609ISW#TRPBF SW-20 SW I 05-08-1620 (SW20) Yes

LTC1609 Package Drawing
LTC1609 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
LTC1609ACSW#PBF SW-20 C $30.00 $22.95 Yes
LTC1609ACSW#TRPBF SW-20 C $23.05 Yes
LTC1609AISW#PBF SW-20 I $32.00 $24.45 Yes
LTC1609AISW#TRPBF SW-20 I $24.55 Yes
LTC1609CG#PBF SSOP-28 C $17.65 $14.95 Yes
LTC1609CG#TRPBF SSOP-28 C $15.05 Yes
LTC1609CSW#PBF SW-20 C $17.65 $14.95 Yes
LTC1609CSW#TRPBF SW-20 C $15.05 Yes
LTC1609IG#PBF SSOP-28 I $19.35 $16.45 Yes
LTC1609IG#TRPBF SSOP-28 I $16.55 Yes
LTC1609ISW#PBF SW-20 I $19.35 $16.45 Yes
LTC1609ISW#TRPBF SW-20 I $16.55 Yes
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* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Click here to view our complete list of demo boards


  • Industrial Process Control
  • Multiplexed Data Acquisition Systems
  • High Speed Data Acquisition for PCs
  • Digital Signal Processing

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Design Tools

Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:

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  • PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
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