MAX1498ECJ+ by Analog Devices

3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers

Status: Active
Series: MAX1498
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX1447/MAX1496/MAX1498 low-power, 3.5- and 4.5-digit, analog-to-digital converters (ADCs) with integrated light-emitting diode (LED) drivers operate from a single 2.7V to 5.25V power supply. They include an internal reference, a high-accuracy on-chip oscillator, and a multiplexed LED display driver. An internal charge pump generates the negative supply needed to power the integrated input buffers for single-supply operation. The ADC is configurable for either a ±2V or ±200mV input range and it outputs its conversion results to an LED. The MAX1496 is a 3.5-digit (±1999 count) device and the MAX1447/MAX1498 are 4.5-digit (±19,999 count) devices. The MAX1447/MAX1496/MAX1498 do not require external precision integrating capacitors, autozero capacitors, crystal oscillators, charge pumps, or other circuitry required with dual-slope ADCs (commonly used in panel meter circuits). These devices also feature on-chip buffers for the differential signal and reference input, allowing direct interface with high-impedance signal sources. In addition, they use continuous internal offset-calibration and offer >100dB rejection of 50Hz and 60Hz line noise. Other features include data hold and peak detection and overrange/underrange detection. The MAX1447 features on-demand enhanced offset calibration for improved offset performance. The MAX1447/MAX1498 are available in a 32-pin, 7mm x 7mm TQFP package and the MAX1496 is available in 28-pin SSOP and 28-pin PDIP packages. All devices in this family operate over the -40°C to +85°C extended temperature range.

Where to Buy

Prices starting from US$15.11

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from US$15.11
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Features

High Resolution MAX1447/MAX1498: 4.5 Digits (±19,999 Count) MAX1496: 3.5 Digits (±1999 Count)
MAX1447/MAX1498: 4.5 Digits (±19,999 Count)
MAX1496: 3.5 Digits (±1999 Count)
Sigma-Delta ADC Architecture No Integrating Capacitors Required No Autozeroing Capacitors Required >100dB of Simultaneous 50Hz and 60Hz Rejection
No Integrating Capacitors Required
No Autozeroing Capacitors Required
>100dB of Simultaneous 50Hz and 60Hz Rejection
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
On-Demand Enhanced Offset Calibration (MAX1447)
Operate from a Single 2.7V to 5.25V Supply
Low Power (Exclude LED-Driver Current) Maximum 744µA Operating Current (MAX1496) Maximum 960µA Operating Current (MAX1447/MAX1498) Maximum 325µA Shutdown Current
Maximum 744µA Operating Current (MAX1496)
Maximum 960µA Operating Current (MAX1447/MAX1498)
Maximum 325µA Shutdown Current
Multiplexed Common-Cathode LED Drivers Resistor-Programmable Segment Current
Resistor-Programmable Segment Current
Small 32-Pin, 7mm x 7mm TQFP Package (4.5 Digits), 28-Pin SSOP Package (3.5 Digits)
Also Available in a PDIP Package (3.5 Digits)

Specifications

Resolution (±Counts) 20000
# Input Channels 1
Conv. Rate (ksps) (max) 0.005
Data Bus 7-Segment
Diff/S.E. Input Diff. Only
Internal VREF (V) (nominal) 2.048
External VREF (V) (min) 0
External VREF (V) (max) 2.048
Bipolar VIN (±V) (max) 2
INL (±LSB) 1
Package/Pins LQFP/32
BudgetaryPrice (See Notes) 12.84

MAX1498ECJ+ Data & Signal Conversion by Analog Devices

ADC 4.5DIGIT 5SPS TQFP-32

Semiconductors - ICs
> Data & Signal Conversion
> Analog-to-Digital Converters - ADC
Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock
The MAX1447/MAX1496/MAX1498 low-power, 3.5- and 4.5-digit, analog-to-digital converters (ADCs) with inte- grated light-emitting diode (LED) drivers operate from a single 2.7V to 5.25V power supply. They include an internal reference, a high-accuracy on-chip oscillator, and a multiplexed LED display driver. An internal charge pump generates the negative supply needed to power the integrated input buffers for single-supply operation. The ADC is configurable for either a ±2V or ±200mV input range and it outputs its conversion results to an LED. The MAX1496 is a 3.5-digit (±1999 count) device and the MAX1447/MAX1498 are 4.5-digit (±19,999 count) devices. The MAX1447/MAX1496/MAX1498 do not require exter- nal precision integrating capacitors, autozero capaci- tors, crystal oscillators, charge pumps, or other circuitry required with dual-slope ADCs (commonly used in panel meter circuits). These devices also feature on-chip buffers for the dif- ferential signal and reference input, allowing direct interface with high-impedance signal sources. In addi- tion, they use continuous internal offset-calibration and offer >100dB rejection of 50Hz and 60Hz line noise. Other features include data hold and peak detection and overrange/underrange detection. The MAX1447 features on-demand enhanced offset calibration for improved offset performance. The MAX1447/MAX1498 are available in a 32-pin, 7mm ✕ 7mm TQFP package and the MAX1496 is available in 28-pin SSOP and 28-pin PDIP packages. All devices in this family operate over the -40°C to +85°C extended temperature range.

Specifications

Resolution (Bits) -
Sampling Rate 5SPS
Input Channel Type Differential
Data Interface -
Supply Voltage Type Single
Supply Voltage Min 2.7V
Supply Voltage Max 5.25V
ADC / DAC Case Style TQFP
No. of Pins 32Pins
Operating Temperature Min -40°C
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

3.5- and 4.5-Digit, Single-Chi | Analog Devices
ADC, 4.5DIGIT, 5SPS, TQFP-32 | Farnell
Adc, 4.5Digit, 5Sps, Tqfp-32 | Newark Electronics

Frequently Asked Questions

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Is the MAX1498ECJ+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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