LTC1090
PRODUCTIONSingle Chip 10-Bit Data Acquisition System
- Part Models
- 4
- 1ku List Price
- Starting From $12.64
Overview
- Software Programmable Features
- Unipolar/Bipolar Conversions
- 4 Differential/8 Single Ended Inputs
- MSB or LSB First Data Sequence
- Variable Data Word Length
- Built in Sample and Hold
- Single Supply 5V, 10V or ±5V Operation
- Direct 4 Wire Interface to Most MPU Serial Ports and All MPU Parallel Ports
- 30kHz Maximum Throughput Rate
The LTC1090 is a data acquisition component which contains a serial I/O successive approximation A/D converter. It uses LTCMOS™ switched capacitor technology to perform either 10-bit unipolar, or 9-bit plus sign bipolar A/D conversions. The 8-channel input multiplexer can be configured for either single ended or differential inputs (or combinations thereof). An on-chip sample and hold is included for all single ended input channels.
The serial I/O is designed to be compatible with industry standard full duplex serial interfaces. It allows either MSB or LSB first data and automatically provides 2’s complement output coding in the bipolar mode. The output data word can be programmed for a length of 8, 10, 12 or 16 bits. This allows easy interface to shift registers and a variety of processors.
The LTC1090A is specified with total unadjusted error (including the effects of offset, linearity and gain errors) less than ±0.5LSB.
The LTC1090 is specified with offset and linearity less than ±0.5LSB but with a gain error limit of ±2LSB for applications where gain is adjustable or less critical.
Applications
- Resolution: 10 Bits
- Total Unadjusted Error (LTC1090A): ±1/2LSB Max
- Conversion Time: 22µs
- Supply Current: 2.5mA Max, 1.0mA Typ
Documentation
Data Sheet 1
Reliability Data 1
Application Note 2
Design Note 7
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC1090ACN#PBF | 20-Lead PDIP (Narrow 0.3 Inch) | ||
| LTC1090CN#PBF | 20-Lead PDIP (Narrow 0.3 Inch) | ||
| LTC1090CSW#PBF | 20-Lead SOIC (Wide 0.3 Inch) | ||
| LTC1090CSW#TRPBF | 20-Lead SOIC (Wide 0.3 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 7, 2019 - 19_0046 Assembly Transfer of 18,20,24,28 Lead PDIP to Cirtek |
||
| LTC1090ACN#PBF | PRODUCTION | |
| LTC1090CN#PBF | PRODUCTION | |
|
Aug 10, 2022 - 22_0176 Laser Top Mark Conversion for SOIC_W Packages Assembled in ADPG [PNG] and UTL |
||
| LTC1090CSW#PBF | PRODUCTION | |
| LTC1090CSW#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware 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 |