Maxim Integrated MAX1491CAI T
- Part Number:
- MAX1491CAI T
- Manufacturer:
- Maxim Integrated
- Ventron No:
- 3252470-MAX1491CAI T
- Description:
- IC ADC W/LCD DRIVER 28-SSOP
- Datasheet:
- MAX1491CAI T
Description
The MAX1491/MAX1493/MAX1495 are low-power, 3.5- and 4.5-digit analog-to-digital converters (ADCs) with integrated liquid crystal display (LCD) drivers. They operate from a single 2.7V to 5.25V power supply and include an internal reference, a high-accuracy on-chip oscillator, and a triplexed LCD driver. An internal charge pump generates the negative supply needed to power the integrated input buffer for single supply operation. The ADC is configurable for either a ±2V or 200mV input range and it outputs its conversion results to an LCD. The MAX1491 is a 3.5-digit (1999 count) device, and the MAX1493/MAX1495 are 4.5-digit (#19,999 count) devices.
Features
MAX1495: 4.5 Digits (±19,999 Count)
MAX1493: 4.5 Digits (19,999 Count)
MAX1491: 3.5 Digits (1999 Count)
Sigma-Delta ADC Architecture
No Integrating Capacitors Required
No Autozeroing Capacitors Required
>100dB of Simultaneous 50Hz and 60Hz Rejection
Operate from a Single 2.7V or 5.25V Supply
Selectable Input Range of ±200mV or ±2V
Selectable Voltage Reference: Internal 2.048V or External
Internal High-Accuracy Oscillator Needs No External Components
Automatic Offset Calibration
Low Power: Maximum 980μA Operating Current
Small 32-Pin 7mm x 7mm TQFP Package (4.5 Digits), 28-Pin SSOP Package (3.5 Digits), and 28-Pin DIP Package (3.5 Digits)
Triplexed LCD Driver
Applications
Digital Panel Meters
Hand-Held Meters
Digital Voltmeters
Digital Multimeters
The MAX1491/MAX1493/MAX1495 are low-power, 3.5- and 4.5-digit analog-to-digital converters (ADCs) with integrated liquid crystal display (LCD) drivers. They operate from a single 2.7V to 5.25V power supply and include an internal reference, a high-accuracy on-chip oscillator, and a triplexed LCD driver. An internal charge pump generates the negative supply needed to power the integrated input buffer for single supply operation. The ADC is configurable for either a ±2V or 200mV input range and it outputs its conversion results to an LCD. The MAX1491 is a 3.5-digit (1999 count) device, and the MAX1493/MAX1495 are 4.5-digit (#19,999 count) devices.
Features
MAX1495: 4.5 Digits (±19,999 Count)
MAX1493: 4.5 Digits (19,999 Count)
MAX1491: 3.5 Digits (1999 Count)
Sigma-Delta ADC Architecture
No Integrating Capacitors Required
No Autozeroing Capacitors Required
>100dB of Simultaneous 50Hz and 60Hz Rejection
Operate from a Single 2.7V or 5.25V Supply
Selectable Input Range of ±200mV or ±2V
Selectable Voltage Reference: Internal 2.048V or External
Internal High-Accuracy Oscillator Needs No External Components
Automatic Offset Calibration
Low Power: Maximum 980μA Operating Current
Small 32-Pin 7mm x 7mm TQFP Package (4.5 Digits), 28-Pin SSOP Package (3.5 Digits), and 28-Pin DIP Package (3.5 Digits)
Triplexed LCD Driver
Applications
Digital Panel Meters
Hand-Held Meters
Digital Voltmeters
Digital Multimeters
Maxim Integrated MAX1491CAI T technical specifications, attributes, parameters and parts with similar specifications to Maxim Integrated MAX1491CAI T.
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / Case28-SSOP (0.209, 5.30mm Width)
- Number of Pins28
- Operating Temperature0°C~70°C
- PackagingTape & Reel (TR)
- Published2004
- JESD-609 Codee3
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations28
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- SubcategoryAnalog to Digital Converters
- Max Power Dissipation762mW
- TechnologyBICMOS
- Voltage - Supply2.7V~5.25V
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Supply Voltage3.3V
- Terminal Pitch0.65mm
- Reflow Temperature-Max (s)30
- Base Part NumberMAX1491
- Pin Count28
- Qualification StatusNot Qualified
- Operating Supply Voltage5.25V
- PolarityBipolar
- Power Supplies3/5V
- Configuration7 Segment 2 Annunciators
- InterfaceParallel
- Operating Supply Current980μA
- Converter TypeADC, DELTA-SIGMA
- Resolution0.4375 B
- Sampling Rate5 sps
- Number of Analog In Channels1
- Output Bit CodeBINARY
- Display TypeLCD
- Number of Converters1
- Conversion Rate2.5 sps
- Analog Input Voltage-Max2.2V
- Analog Input Voltage-Min-2.2V
- Digits or CharactersA/D 3.5 Digits
- Width5.3mm
- RoHS StatusROHS3 Compliant
- Lead FreeLead Free
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