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MAX1367 Dataheets PDF



Part Number MAX1367
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Digit Panel Meters
Datasheet MAX1367 DatasheetMAX1367 Datasheet (PDF)

www.DataSheet4U.com 19-3889; Rev 1; 1/06 Stand-Alone, 4.5-/3.5-Digit Panel Meters with 4–20mA Output General Description The MAX1365/MAX1367 low-power, 4.5- and 3.5-digit, panel meters feature an integrated sigma-delta analogto-digital converter (ADC), LED display drivers, voltage digital-to-analog converter (DAC), and a 4–20mA (or 0 to 16mA) current driver. The MAX1365/MAX1367’s analog input voltage range is programmable to either ±2V or ±200mV. The MAX1367 drives a 3.5-digit (±1999 count) di.

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www.DataSheet4U.com 19-3889; Rev 1; 1/06 Stand-Alone, 4.5-/3.5-Digit Panel Meters with 4–20mA Output General Description The MAX1365/MAX1367 low-power, 4.5- and 3.5-digit, panel meters feature an integrated sigma-delta analogto-digital converter (ADC), LED display drivers, voltage digital-to-analog converter (DAC), and a 4–20mA (or 0 to 16mA) current driver. The MAX1365/MAX1367’s analog input voltage range is programmable to either ±2V or ±200mV. The MAX1367 drives a 3.5-digit (±1999 count) display and the MAX1365 drives a 4.5-digit (±19,999 count) display. The ADC output directly drives the LED display as well as the voltage DAC, which in turn drives the 4–20mA (or 0 to 16mA) current-loop output. In normal operation, the 0 to 16mA/4–20mA currentloop output follows the ±2V or ±200mV analog input to drive remote panel-meter displays, data loggers, and other industrial controllers. For added flexibility, the MAX1365/MAX1367 allow direct access to the DAC output and the V/I converter input. The sigma-delta ADC does not require external precision integrating capacitors, autozero capacitors, crystal oscillators, charge pumps, or other circuitry commonly required in dual-slope ADC panel-meter circuits. Onchip analog input and reference buffers allow direct interface with high-impedance signal sources. Excellent common-mode rejection and digital filtering provide greater than 100dB rejection of simultaneous 50Hz and 60Hz line noise. Other features include data hold, peak detection, and overrange/underrange detection. The MAX1365/MAX1367 require a 2.7V to 5.25V supply, a 4.75V to 5.25V V/I supply, and a 7V to 30V loop supply. They are available in a space-saving (7mm x 7mm), 48-pin TQFP package and operate over the extended (-40°C to +85°C) temperature range. Features ♦ Stand-Alone, Digital Panel Meter 20-Bit Sigma-Delta ADC 4.5-Digit Resolution (±19,999 Count, MAX1365) 3.5-Digit Resolution (±1999 Count, MAX1367) No Integrating/Autozeroing Capacitors 100MΩ Input Impedance ±200mV or ±2.000V Input Range ♦ LED Display Common-Cathode 7-Segment LED Driver Programmable LED Current (0 to 20mA) 2.5Hz Update Rate ♦ Output DAC and Current Driver ±15-Bit DAC with 14-Bit Linear V/I Converter Selectable 0 to 16mA or 4–20mA Current Output Unipolar/Bipolar Modes ±50µA Zero Scale, ±40ppmFS/°C (typ) ±0.5% Gain Error, ±25ppmFS/°C (typ) Separate 7V to 30V Supply for Current-Loop Output ♦ 2.7V to 5.25V ADC/DAC Supply ♦ 4.75V to 5.25V V/I Converter Supply ♦ Internal 2.048V Reference or External Reference ♦ 48-Pin, 7mm x 7mm TQFP Package MAX1365/MAX1367 Ordering Information PART MAX1365ECM MAX1367ECM TEMP RANGE -40°C to +85°C -40°C to +85°C PIN-PACKAGE 48 TQFP 48 TQFP Applications Automated Test Equipment Data-Acquisition Systems Digital Multimeters Digital Panel Meters Digital Voltmeters Industrial Process Control Selector Guide PART MAX1365ECM MAX1367ECM RESOLUTION (DIGITS) 4.5 3.5 PKG CODE C48-6 C48-6 Pin Configuration appears at end of datasheet. Typical Operating Circuits appear at end of datasheet. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Stand-Alone, 4.5-/3.5-Digit Panel Meters with 4–20mA Output MAX1365/MAX1367 ABSOLUTE MAXIMUM RATINGS AVDD, DVDD ....................................................................-0.3V to +6.0V AIN+, AIN-, REF+, REF-.........................VNEGV to (AVDD + 0.3V) REG_FORCE, CMP, DAC_VDD, DACVOUT, CONV_IN, 4-20OUT .............................-0.3V to (AVDD + 0.3V) EN_BPM, EN_I, REFSELE, DACDATA_SEL, INTREF, RANGE, DPSET1, DPSET2, HOLD, PEAK, DPON, CS_DAC...............................................-0.3V to (DVDD + 0.3V) NEGV .......................................................-2.6V to (AVDD + 0.3V) LED_EN....................................................-0.3V to (DVDD + 0.3V) SET...........................................................-0.3V to (AVDD + 0.3V) REG_AMP, REG_VDD ...........................................-0.3V to +6.0V LEDV......................................................................-0.3V to +6.0V LEDG .....................................................................-0.3V to +0.3V GND_DAC .............................................................-0.3V to +0.3V GND_V/I.................................................................-0.3V to +0.3V SEG_ to LEDG.........................................-0.3V to (VLEDV + 0.3V) DIG_ to LEDG..........................................-0.3V to (VLEDV + 0.3V) REF_DAC .................................................-0.3V to (AVDD + 0.3V) DIG_ Sink Current .............................................................300mA DIG_ Source Current...........................................................50mA SEG_ Sink Current . ............................................................50mA SEG_ Source Current.......


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