LTC1605 - 16-Bit, 100ksps, Sampling ADC


  • Single 5V Supply
  • Bipolar Input Range: ±10V
  • Power Dissipation: 55mW Typ
  • Guaranteed No Missing Codes
  • Sample Rate: 100ksps
  • Integral Nonlinearity: ±2.0LSB Max
  • Signal-to-Noise Ratio: 86dB Typ
  • Operates with Internal or External Reference
  • Internal Synchronized Clock
  • Improved 2nd Source to ADS7805 and AD976
  • 28-Pin 0.3” PDIP, SSOP and SW Packages

Typical Application

LTC1605 Typical Application
LTC1605 Typical Application


The LTC1605 is a 100ksps, sampling 16-bit A/D converter that draws only 55mW (typical) from a single 5V supply. This easy-to-use device includes sample-andhold, precision reference, switched capacitor successive approximation A/D and trimmed internal clock.

The LTC1605’s input range is an industry standard ±10V. Maximum DC specs include ±2.0LSB INL and 16-bits no missing codes over temperature. An external reference can be used if greater accuracy over temperature is needed.

The ADC has a microprocessor compatible, 16-bit or two byte parallel output port. A convert start input and a data ready signal (BUSY) ease connections to FIFOs, DSPs and microprocessors.

  Input Voltage Range
LTC1605 Bipolar ±10V
LTC1605-1 Unipolar 0V to 4V
LTC1605-2 Bipolar ±4V


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
LTC1605ACG#PBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC1605ACG#TRPBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC1605ACSW#PBF SW-28 SW C 05-08-1620 (SW28) Yes
LTC1605ACSW#TRPBF SW-28 SW C 05-08-1620 (SW28) Yes
LTC1605AIG#PBF SSOP-28 G I 05-08-1640 (G28) Yes
LTC1605AIG#TRPBF SSOP-28 G I 05-08-1640 (G28) Yes
LTC1605AISW#PBF SW-28 SW I 05-08-1620 (SW28) Yes
LTC1605AISW#TRPBF SW-28 SW I 05-08-1620 (SW28) Yes
LTC1605CG#PBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC1605CG#TRPBF SSOP-28 G C 05-08-1640 (G28) Yes
LTC1605CSW#PBF SW-28 SW C 05-08-1620 (SW28) Yes
LTC1605CSW#TRPBF SW-28 SW C 05-08-1620 (SW28) Yes
LTC1605IG#PBF SSOP-28 G I 05-08-1640 (G28) Yes
LTC1605IG#TRPBF SSOP-28 G I 05-08-1640 (G28) Yes
LTC1605ISW#PBF SW-28 SW I 05-08-1620 (SW28) Yes
LTC1605ISW#TRPBF SW-28 SW I 05-08-1620 (SW28) Yes

LTC1605 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
LTC1605ACG#PBF SSOP-28 C $28.35 $23.40 Yes
LTC1605ACG#TRPBF SSOP-28 C $23.50 Yes
LTC1605ACSW#PBF SW-28 C $27.90 $23.00 Yes
LTC1605ACSW#TRPBF SW-28 C $23.10 Yes
LTC1605AIG#PBF SSOP-28 I $29.15 $24.00 Yes
LTC1605AIG#TRPBF SSOP-28 I $24.10 Yes
LTC1605AISW#PBF SW-28 I $29.15 $24.00 Yes
LTC1605AISW#TRPBF SW-28 I $24.10 Yes
LTC1605CG#PBF SSOP-28 C $20.80 $17.40 Yes
LTC1605CG#TRPBF SSOP-28 C $17.50 Yes
LTC1605CSW#PBF SW-28 C $20.65 $17.00 Yes
LTC1605CSW#TRPBF SW-28 C $17.10 Yes
LTC1605IG#PBF SSOP-28 I $22.25 $18.40 Yes
LTC1605IG#TRPBF SSOP-28 I $18.50 Yes
LTC1605ISW#PBF SW-28 I $21.85 $18.00 Yes
LTC1605ISW#TRPBF SW-28 I $18.10 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.

Part Number Description Price Documentation
DC1255A-A LTC1605ACG Demoboard | 16-Bit, 100ksps ADC (requires DC718 controller) $100.00
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Companion Boards

Part Number Description Price Documentation
DC718C USB Data Acquisition Controller, for PScope Evaluation Kits (<135Mbps) $300.00
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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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