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MAX189

Maxim
Part Number MAX189
Manufacturer Maxim
Description 1.4MHz SOT23 Current-Mode Step-Up DC-DC Converter
Published May 6, 2005
Detailed Description 19-0196; Rev 0; 10/93 NUAL KIT MA ATION SHEET A EVALU T A D WS FOLLO +5V, Low-Power, 12-Bit Serial ADCs ______________...
Datasheet PDF File MAX189 PDF File

MAX189
MAX189

Overview
19-0196; Rev 0; 10/93 NUAL KIT MA ATION SHEET A EVALU T A D WS FOLLO +5V, Low-Power, 12-Bit Serial ADCs ________________________________Features o o o o o 12-Bit Resolution ±1⁄2 LSB Integral Nonlinearity (MAX187A/MAX189A) Internal Track/Hold, 75kHz Sampling Rate Single +5V Operation Low Power: 2µA Shutdown Current 1.
5mA Operating Current o Internal 4.
096V Buffered Reference (MAX187) o 3-Wire Serial Interface, Compatible with SPI, QSPI, and Microwire o Small-Footprint 8-Pin DIP and 16-Pin SO __________________General Description The MAX187/MAX189 serial 12-bit analog-to-digital converters (ADCs) operate from a single +5V supply and accept a 0V to 5V analog input.
Both parts feature an 8.
5µs successive-approximation ADC, a fast track/hold (1.
5µs), an on-chip clock, and a high-speed 3-wire serial interface.
The MAX187/MAX189 digitize signals at a 75ksps throughput rate.
An external clock accesses data from the interface, which communicates without external hardware to most digital signal processors and microcontrollers.
The interface is compatible with SPI™, QSPI™, and Microwire™.
The MAX187 has an on-chip buffered reference, and the MAX189 requires an external reference.
Both the MAX187 and MAX189 save space with 8-pin DIP and 16-pin SO packages.
Power consumption is 7.
5mW and reduces to only 10µW in shutdown.
Excellent AC characteristics and very low power consumption combined with ease of use and small package size make these converters ideal for remote DSP and sensor applications, or for circuits where power consumption and space are crucial.
MAX187/MAX189 _________________Ordering Information PART MAX187ACPA MAX187BCPA MAX187CCPA MAX187ACWE MAX187BCWE MAX187CCWE MAX187BC/D TEMP.
RANGE PIN-PACKAGE ERROR (LSB) 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 0°C to +70°C 8 Plastic DIP 8 Plastic DIP 8 Plastic DIP 16 Wide SO 16 Wide SO 16 Wide SO Dice* ±1⁄2 ±1 ±2 ±1⁄2 ±1 ±2 ±1 ___________________________Applications Portable Data Log...


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