Features: ` 8-Bit ADC with 4 s Conversion Time` Small Footprint 8-Lead microSOIC Package` Specified Over a 40C to +125C Temperature Range` Inherent Track-and-Hold Functionality` Operating Supply Range: 2.7 V to 5.5 V` Specifications at 2.7 V to 5.5 V and 5 V± 10%` Microcontroller Compatible Ser...
AD7823: Features: ` 8-Bit ADC with 4 s Conversion Time` Small Footprint 8-Lead microSOIC Package` Specified Over a 40C to +125C Temperature Range` Inherent Track-and-Hold Functionality` Operating Supply ...
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Resolution (Bits) | 8bit |
T-Put Rate | 200kSPS |
# Chan | 1 |
Supply V | Single(+3),Single(+3.3),Single(+5) |
Pwr Diss | 17.5mW |
Interface | Ser |
Ain Range | (Vref) p-p,Uni (Vref) |
SNR (dB) | 48dB |
Pkg Type | DIP,SOIC,SOP |
The AD7823 is a high speed, low power, 8-bit A/D converter that operates from a single 2.7 V to 5.5 V supply. The part contains a 4 s typ successive approximation A/D converter, inherent track-and-hold functionality (with a pseudo differential input) and a high speed serial interface that interfaces to most microcontrollers. The AD7823 is fully specified over a temperature range of 40°C to +125°C.
By using a technique that samples the state of the CONVST (convert start) signal at the end of a conversion, the AD7823 may be used in an automatic power-down mode. When used in this mode, the AD7823 powers down automatically at the end of a conversion and "wakes up" at the start of a new conversion . This feature significantly reduces the power consumption of the part at lower throughput rates. The AD7823 can also operate in a high speed mode where the part is not powered down between conversions. In this high speed mode of operation, the conversion time of the AD7823 is 4 s typ. The maximum throughput rate is dependent on the speed of the serial interface of the microcontroller.
The part AD7823 is available in a small, 8-lead 0.3" wide, plastic dualin- line package (mini-DIP); in an 8-lead, small outline IC (SOIC); and in an 8-lead microSOIC package.