ICL7109
PRODUCTION12-Bit A/D Converter with 3-State Binary Outputs
- Part Models
- 8
- 1ku List Price
- Starting From $6.48
Overview
- 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
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
Documentation
Data Sheet 1
Technical Articles 2
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 |
|---|---|---|---|
| ICL7109CPL+ | Plastic Dual-In-Line, Wide (0.6in) | ||
| ICL7109CPL+2 | Plastic Dual-In-Line, Wide (0.6in) | ||
| ICL7109CQH+D | Plastic Leaded Chip Carrier | ||
| ICL7109CQH+TD | Plastic Leaded Chip Carrier | ||
| ICL7109EPL+ | Plastic Dual-In-Line, Wide (0.6in) | ||
| ICL7109EQH+D | Plastic Leaded Chip Carrier | ||
| ICL7109EQH+TD | Plastic Leaded Chip Carrier | ||
| ICL7109IPL+ | Plastic Dual-In-Line, Wide (0.6in) |
This is the most up-to-date revision of the Data Sheet.