LTC1594L - 4- and 8-Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters
Features
- 12-Bit Resolution on 3V Supply
- Low Supply Current: 160µA Typ
- Auto Shutdown to 1nA
- Guaranteed ±3/4LSB Max DNL
- Guaranteed 2.7V Operation
(5V Versions Available: LTC1594/LTC1598)
- Multiplexer: 4-Channel MUX (LTC1594L)
8-Channel MUX (LTC1598L)
- Separate MUX Output and ADC Input Pins
- MUX and ADC May Be Controlled Separately
- Sampling Rate: 10.5ksps
- I/O Compatible with QSPI, SPI and MICROWIRE™, etc.
- Small Package:
16-Pin Narrow SO (LTC1594L)
24-Pin SSOP (LTC1598L)
Typical Application
Description
The LTC1594L/LTC1598L are 3V micropower, 12-bit sampling A/D converters that feature 4- and 8-channel multiplexers, respectively. They typically draw only 160µA of supply current when converting and automatically power down to a typical supply current of 1nA between conversions. The LTC1594L is available in a 16-pin SO package and the LTC1598L is packaged in a 24-pin SSOP. Both operate on a 3V supply. The 12-bit, switched capacitor, successive approximation ADCs include a sample-and-hold.
On-chip serial ports allow efficient data transfer to a wide range of microprocessors and microcontrollers over three or four wires. This, coupled with micropower consumption, makes remote location possible and facilitates transmitting data through isolation barriers.
The circuit can be used in ratiometric applications or with an external reference. The high impedance analog inputs and the ability to operate with reduced spans (to 1.5V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages.
Packaging
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 Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC1594LCS#PBF | SO-16 | S | C | 05-08-1610 (S16) | Yes |
| LTC1594LCS#TRPBF | SO-16 | S | C | 05-08-1610 (S16) | Yes |
| LTC1594LIS#PBF | SO-16 | S | I | 05-08-1610 (S16) | Yes |
| LTC1594LIS#TRPBF | SO-16 | S | I | 05-08-1610 (S16) | Yes |
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 (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC1594LCS#PBF | SO-16 | C | $6.95 | $5.65 | Yes | |
| LTC1594LCS#TRPBF | SO-16 | C | $5.71 | Yes | ||
| LTC1594LIS#PBF | SO-16 | I | $8.00 | $6.50 | Yes | |
| LTC1594LIS#TRPBF | SO-16 | I | $6.56 | Yes | ||
| Buy Now • Request Samples | ||||||
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
Applications
- Pen Screen Digitizing
- Battery-Operated Systems
- Remote Data Acquisition
- Isolated Data Acquisition
- Battery Monitoring
- Temperature Measurement
People Who Viewed This Product Also Viewed
- LTC1594 - 4-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converter
- LT1761 - 100mA, Low Noise, LDO Micropower Regulators in TSOT-23
- LT3080 - Adjustable 1.1A Single Resistor Low Dropout Regulator
- LT1763 - 500mA, Low Noise, LDO Micropower Regulators
- LTM2883 - SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
- LT4363 - High Voltage Surge Stopper with Current Limit
- LTC6655 - 0.25ppm Noise, Low Drift Precision References
- LTC2440 - 24-Bit High Speed Differential Delta Sigma ADC with Selectable Speed/Resolution
- LTC6102 - Precision Zero Drift Current Sense Amplifier
- LT8705 - 80V VIN and VOUT Synchronous 4-Switch Buck- Boost DC/DC Controller
Product Notifications
Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.
Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.
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:
- LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
- LTpowerCAD - A complete power supply selection, synthesis and design tool
- LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
- PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
- Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
- LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
- And More!
Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
