MAX1204BEPP+

Number of A/D Converters:	1
Base Part Number:	MAX1204
Supplier Device Package:	20-PDIP
Package / Case:	20-DIP (0.300", 7.62mm)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	±5V, 5V
Voltage - Supply, Analog:	±5V, 5V
Reference Type:	External, Internal
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	MUX-S/H-ADC
Data Interface:	SPI
Input Type:	Differential, Single Ended
Number of Inputs:	4, 8
Sampling Rate (Per Second):	133k
Number of Bits:	10
Part Status:	Active
Packaging:	Tube

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Introduction

The MAX1204BEPP+ is a low power, 8-bit, single-supply CMOS analog-to-digital converter (ADC). This device is offered in small, operating temperature range from 40°C to 85°C, and is also available in 10-bit version. This device is mostly used in many communication, measurement and control systems.

Application Fields and Performance Parameters

The MAX1204BEPP+ covers a broad range of application fields, including: industrial process control, test and measurement systems, automotive and HVAC systems, video data acquisition, digital camera systems and medical systems.The MAX1204BEPP+ offers various features including low backup current and low supply current. It has a 2.7 V to 5.25 V single supply with 600 µA of standby current when powered down. The device also features high speed, low power and low cost performance.

Description and Features

The MAX1204BEPP+ includes a low noise, low power, 8-bit analog-to-digital converter (ADC) and is available in 10-bit version. The device is a single-supply operation from 2.7 V to 5.5 V. It has a low power CMOS process with a low standby current. The device also offers outstanding performance with a conversion rate of 1 MSPS and an input sample rate of 10 MHz.The MAX1204BEPP+ is packed in a space-saving 8-pin (3x3) µMAX package and is available in three versions: low voltage/ low power, high voltage/high power, and 3.3 V.

Principle of Operation

The MAX1204BEPP+ operates on a single 5.5 V supply and consumes only 600 µA in standby mode. The device performs a sample-and-hold operation of the signal and then uses the sample voltage to drive a resistor ladder that produces digital codes. The device then uses track-and-hold circuitry (not shown) to capture the next sample after the conversion is complete.The MAX1204BEPP+ utilizes a Successive Approximation Register (SAR) architecture to perform the conversion. In SAR architecture, successive approximation is applied to the analog input signal until the output code is fixed. The output code is compared to the actual input voltage, and the difference is shifted off one bit at a time from the MSB until the spread between the input voltage and the output code is reduced to zero, thus producing the digital output code corresponding to the input voltage.

Conclusion

The MAX1204BEPP+ is a low power, single-supply 8-bit analog-to-digital converter. It covers a broad range of application fields and covers various performance parameters. The device is a single-supply operation from 2.7 V to 5.5 V. It has a low power CMOS process with a low standby current. The device also offers outstanding performance with a conversion rate of 1 MSPS and an input sample rate of 10 MHz. The MAX1204BEPP+ utilizes a Successive Approximation Register (SAR) architecture to perform the conversion.

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