ADS7832BN

The ADS7832BN is a monolithic CMOS 12-bit analogto-digital converter with internal sample/hold and fourchannel multiplexer. It is designed and tested for full dynamic performance with input signals to 50kHz.The 5V single-supply requirements and standard CS,RD, and WR control signals make the part easy to use in microprocessor applications. Conversion results are available in two bytes through an 8-bit three-state output bus.

Features of the ADS7832BN are:(1) pin compatible to ADC7802 and ADS7803;(2) single supply is +5 V or +3.3 V;(3) low power is 14 mW plus power down;(4) fast conversion time is 8.5 us including acquisition(117 kHz sampling rate);(5) four-channel input multiplexer.

The absolute maximum ratings of the ADS7832BN can be summarized as:(1): VA to analog ground is 7V;(2): VD to digital ground is 7V;(3): VA to VD is ±0.3V;(4): analog ground to digital ground is ±0.3V; (5): control inputs to digital ground is 0.3V to VD + 0.3V;(6): analog input voltage to analog ground is 0.3V to VA + 0.3V;(7): maximum junction temperature is 150°C;(8): internal power dissipation is 875mW;(9): lead temperature (soldering, 10s) is +260°C;(10): thermal resistance, qJA is 75°C/W.

The ADS7832BN is designed as a monolithic CMOS 12-bit analogto-digital converter with internal sample/hold and fourchannel multiplexer. It is tested for full dynamic performance with input signals to 50kHz.

ADS7832BN has seven features. (1)Pin compatible to ADC7802 and ADS7803. (2)Single supply +5V or +3.3V. (3)Low power 14mW plus power down. (4)Signal-to-(noise+distortion) ratio over temperature: 69dB min with fIN=1kHz and 66dB min with fIN=50kHz. (5)Fast conversion time 8.5us including acquisition (117kHz sampling rate). (6)Autocal: no offset or gain adjust required. Those are all the main features.

Some absolute maximum ratings of ADS7832BN have been concluded into several points as follow. (1)Its Va to analog ground would be 7V. (2)Its Vd to digital ground would be 7V. (3)Its Va to Vd would be +/-0.3V. (4)Its analog ground to digital ground would be +/-0.3V. (5)Its control inputs to digital ground would be from -0.3V to Vd+0.3V. (6)Its analog input voltage to analog ground would be from -0.3V to Va+0.3V. (7)Its maximum junction temperature would be 150°C. (8)Its internal power dissipation would be 875mW. (9)Its lead temperature (soldering 10s) would be +260°C. (10)Its thermal resistance would be 75°C/W. (11)Its maximum input current to any pin would be +/-50mA. (12)Its ESD human body model would be 1kV. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of ADS7832BN are concluded into several points as follow. (1)Its resolution would be typ 12bits. (2)Its voltage input range would be min 0V and max 5V. (3)Its on state bias current would be max 100nA. (4)Its off state bias current would be max 10nA. (5)Its input capacitance would be typ 40pF. (6)Its on resistance multiplexer would be typ 400 ohms. (7)Its off resistance multiplexer would be typ 10 Mohms. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!