The ADS1210 , wide dynamic range, delta-sigma Analog-to-Digital (A/D) converters with 24-bit resolution operating from a single 5V supply. The differential inputs are ideal for direct connection to transducers or low-level voltage signals. The delta-sigma architecture is used for wide dynamic range and to ensure 22 bits of no-missing-code performance. An effective resolution of 23 bits is achieved through the use of a very low-noise input amplifier at conversion rates up to 10Hz. Effective resolutions of 20 bits can be maintained up to a sample rate of 1kHz through the use of the unique Turbo modulator mode of operation. The dynamic range of the converters is further increased by providing a low-noise programmable gain amplifier with a gain range of 1 to 16 in binary steps

10 years minimum data retention in the absence of external power ? Data is automatically protected during power loss ? Replaces 32k x 8 volatile static RAM, EEPROM or Flash memory ? Unlimited write cycles ? Low-power CMOS ? Read and write access times of 70 ns ? Lithium energy source is electrically disconnected to retain freshness until power is applied for the first time ? Full ?10% VCC operating range (DS1230Y) ? Optional ?5% VCC operating range (DS1230AB) ? Optional industrial temperature range of -40?C to 85?C, designated IND ? JEDEC standard 28-pin DIP package

Super-low power version of DS1232
50 ?A quiescent current
Halts and restarts an out-of-control microprocessor
Automatically restarts microprocessor after power failure
Monitors pushbutton for external override
Accurate 5% or 10% microprocessor power supply monitoring
8-pin DIP, 8-pin SOIC or space saving ?-SOP package available
Optional 16-pin SOIC package available
Industrial temperature -40?C to 85?C available, designated N

? Drop-In Replacement for IBM AT Computer Clock/Calendar ? RTC Counts Seconds, Minutes, Hours, Day, Date, Month, and Year with Leap Year Compensation Through 2099 ? Binary or BCD Time Representation ? 12-Hour or 24-Hour Clock with AM and PM in 12-Hour Mode ? Daylight Saving Time Option ? Selectable Intel or Motorola Bus Timing ? Interfaced with Software as 128 RAM Locations ? 14 Bytes of Clock and Control Registers ? 114 Bytes of General-Purpose, Battery-Backed RAM (113 Bytes in the DS12C887 and DS12C887A) ? RAM Clear Function (DS12885, DS12887A, and DS12C887A) ? Interrupt Output with Three Independently Maskable Interrupt Flags

The DS1305 serial alarm real-time clock provides a full binary coded decimal (BCD) clock calendar that is accessed by a simple serial interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. In addition, 96 bytes of NV RAM are provided for data storage. The DS1305 will maintain the time and date, provided the oscillator is enabled, as long as at least one supply is at a valid level.