The ADS7842 is a complete, 4-channel, 12-bit Analog-to-Digital Converter (ADC). It contains a 12-bit, capacitorbased, Successive Approximation Register (SAR) ADC with a sample-and-hold amplifier, interface for microprocessor use, and parallel, 3-state output drivers. The ADS7842 is specified at a 200kHz sampling rate while dissipating only 2mW of power. The reference voltage can be varied from 100mV to VCC with a corresponding LSB resolution from 24µV to 1.22mV. The ADS7842 is tested down to 2.7V operation.
Low power, high speed, and an onboard multiplexer make the ADS7842 ideal for battery-operated systems such as portable, multi-channel dataloggers and measurement equipment. The ADS7842 is available in an SSOP-28 package and is tested over the -40°C to +85°C temperature range.
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|Part number||Order||Resolution (Bits)||Sample rate (Max) (kSPS)||Number of input channels||Interface||Operating temperature range (C)||Package Group||Approx. price (US$)||Power consumption (Typ) (mW)||Package size: mm2:W x L (PKG)||Architecture||Input type||Multi-channel configuration||Reference mode||Features||Input range (Max) (V)||Input range (Min) (V)||Analog voltage AVDD (Min) (V)||Analog voltage AVDD (Max) (V)||Digital supply (Min) (V)||Digital supply (Max) (V)||INL (Max) (+/-LSB)||SNR (dB)||THD (Typ) (dB)||Rating|
||12||200||4||Parallel||-40 to 85||SSOP | 28||3.80 | 1ku||1.8||28SSOP: 54 mm2: 5.3 x 10.2 (SSOP | 28)||SAR||Single-Ended||Multiplexed||Ext||5.25||0||2.7||5.25||2.7||5.25||1||70||-78||Catalog|