MAX190
PRODUCTIONLow-Power, 12-Bit Sampling ADCs with Internal Reference and Power-Down
See MAX129X or MAX191 For New Designs
- Part Models
- 5
- 1ku List Price
- Starting From $19.38
Overview
- 12-Blt Resolution, 1/2LSB Linearity
- +SV or ±SV Operation (MAX191)
- Built-In Track/Hold
- Internal Reference with Adjustment Capability
- Low Power:
- 3mA Operating Mode
- 20µA Power-Down Mode
- 100ksps Tested Sampling Rate (MAX191)
- Serial and 8-Bit Parallel µP Interface
- 24-Pln Narrow DIP and Wide SO Packages
The MAX190/MAX191 are monolithic, CMOS, 12-bit analog-to-digital converters (ADCs) featuring differential inputs, track/hold (T/H), internal voltage reference, internal or external clock, and parallel or serial µP interface. Both devices have a 7.5µs conversion time. The MAX190 has a 5µs acquisition time and sampling rate of 76k samples per second (ksps), while the MAX191 has a 2µs acquisition time and is guaranteed at 100ksps.
Decoupling capacitors are the only external components needed for the power supply and reference. These ADCs operate with either an external reference, or an internal reference that features an adjustment input for trimming system gain errors.
Both the MAX190 and MAX191 operate from a single +5V supply. The MAX191 also operates from dual ±5V supplies, allowing ground-referenced bipolar input signals. Both devices feature a logic power-down input, which reduces the 3mA Voo supply current to 50µA max, including the internal-reference current.
The MAX190/MAX191 provide three interface modes: two 8-bit parallel modes, and a serial interface mode that is compatible with SPI, QSPI and Microwire™ serial-interface standards.
APPLICATIONS
- Battery-Powered Data Logging
- PC Pen Digitizers
- High-Accuracy Process Control
- Electromechanical Systems
- Data-Acquisition Boards for PCs
- Automatic Testing Systems
- Telecommunications
- Digital-Signal Processing (DSP)
Documentation
Data Sheet 1
Design Note 1
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 |
|---|---|---|---|
| MAX190ACNG+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX190BCNG+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX190BENG+ | Plastic Dual-In-Line, Narrow (0.3in) | ||
| MAX190BEWG+ | Small-Outline IC, Wide (0.3in) | ||
| MAX190BEWG+T | Small-Outline IC, Wide (0.3in) |
This is the most up-to-date revision of the Data Sheet.
Software Resources
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| Parts | Product Life Cycle | Description |
|---|---|---|
| Analog to Digital Converters (ADCs) 5 | ||
| MAX191 | PRODUCTION | Low-Power, 12-Bit Sampling ADC with Internal Reference and Power-Down |
| MAX185 | PRODUCTION | High-Speed 12-Bit AID Converters With External Reference Input |
| MX674A | PRODUCTION | Industry-Standard, Complete 12-Bit ADCs |
| MAX178 | PRODUCTION | Calibrated, 12-Bit ADC with Track/Hold and Reference |
| MX7578 | PRODUCTION | Calibrated 12-Bit ADC |
Evaluation Kits
Evaluation Kit for the MAX190
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