Overview
Features and Benefits
- Improved 2nd Source!
- Zero Integrator Phase for Fast Overload Recovery
- Hysteresis and "Crosstalk" Eliminated
- Enhanced Bus Driving Capability
- Byte Organized Three-state Outputs
- UART Handshake Mode for Serial Interfacing
- True Differential Input and Reference
- Up to 30 Conversions per Second
- Significantly Improved ESD Protection
- Monolithic, Low Power CMOS Design
Product Details
The ICL7109 is a monolithic 12 bit A/D converter designed for easy interface with microprocessors and UARTs. The 12 bit binary plus polarity and over-range outputs can be directly interfaced to a microprocessor bus. In this mode the ICL7109 is controlled by the microprocessor through the chip select and tow byte enable inputs. For remote data logging applications the ICL7109 outputs are easily converted to a UART handshake mode, working with industry standard UARTs to provide serial data transmission.
This device offers high accuracy by lowering rollover error to less than 1 count and zero reading drift to less than 1μV/ °C. In many data acquisition systems the ICL7109 is an attractive, low cost, one-per-channel alternative to analog multiplexing due to its low power consumption and input bias current.
Maxim has added a zero-integrator phase to the ICL7109, eliminating overrange hangover, "crosstalk" and hysteresis effects. Maxim has also increased the current sourcing capabilities of the ICL7109, enabling it to rapidly drive the large capacitances often found on microprocessor busses.
Applications
- Current
- Flow
- Power
- Pressure
- Resistance
- Speed
- Temperature
- Voltage
- Weight
Product Categories
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
-
Delta-Sigma ADCs Replace Integrating ADCs for Panel Meters6/27/2003
-
ADC Architectures5/2/2002
Design Resources
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 Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| ICL7109CPL+ | Material Declaration | Reliability Data | Plastic Dual-In-Line, Wide (0.6in) | |
| ICL7109CPL+2 | Material Declaration | Reliability Data | Plastic Dual-In-Line, Wide (0.6in) | |
| ICL7109CQH+D | Material Declaration | Reliability Data | Plastic Leaded Chip Carrier | |
| ICL7109CQH+TD | Material Declaration | Reliability Data | Plastic Leaded Chip Carrier | |
| ICL7109EPL+ | Material Declaration | Reliability Data | Plastic Dual-In-Line, Wide (0.6in) | |
| ICL7109EQH+D | Material Declaration | Reliability Data | Plastic Leaded Chip Carrier | |
| ICL7109EQH+TD | Material Declaration | Reliability Data | Plastic Leaded Chip Carrier | |
| ICL7109IPL+ | Material Declaration | Reliability Data | Plastic Dual-In-Line, Wide (0.6in) | |
| Wafer Fabrication Data |
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Sample & Buy
Ordering FAQs
See our Ordering FAQs for answers to questions about online orders, payment options and more.
Buy Now Pricing
(**) Displayed Buy Now Price and Price Range is based on small quantity orders.
List Pricing
(*)The 1Ku 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 Analog Devices, Inc. authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
Lead Times
Please see the latest communication from our CCO regarding lead times.
Sampling
A Sample link will be shown above, next to the part, only for parts that are included in our sample program. Selecting the Sample button will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.