●Product Details
●The AD7298 is a 12-bit, high speed, low power, 8-channel, successive approximation ADC with an internal temperature sensor. The part operates from a single 3.3 V power supply and features throughput rates up to 1 MSPS. The device contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 30 MHz.
●The AD7298 offers a programmable sequencer, which enables the selection of a pre-programmable sequence of channels for conversion. The device has an on-chip 2.5 V reference that can be disabled to allow the use of an external reference.
●The AD7298 offers a programmable sequencer, which enables the selection of a preprogrammable sequence of channels for conversion. The device has an on-chip, 2.5 V reference that can be disabled to allow the use of an external reference.
●The AD7298 includes a high accuracy band gap temperature sensor, which is monitored and digitized by the 12-bit ADC to give a resolution of 0.25°C. The device offers a 4-wire serial interface compatible with SPI and DSP interface standards.
●The AD7298 uses advanced design techniques to achieve very low power dissipation at high throughput rates. The part also offers flexible power/throughput rate management options. The part is offered in a 20-lead LFCSP package.
●Product Highlights
● 1. Ideally suited to monitoring system variables in a variety of systems including telecommunications, process and industrial control.
● 2. High Throughput rate of 1Msps per channel with Low Power Consumption.
● 3. Eight Single-Ended Inputs with a Channel Sequencer. A consecutive sequence of channels can be selected on which the ADC cycles and converts.
● 4. Integrated temperature sensor with 0.25°C resolution.
●### Features and Benefits
● 12 bit SAR ADC
●8 single-ended inputs
●Channel sequencer functionality
●Fast throughput of 1Msps
●Analog Input Range 0 to 2.5V
● 12-bit temperature-to-digital converter
● Temperature sensor accuracy of ±1°C
● Temperature range: −40°C to +125°C
● Specified for VDD of 2.8 V to 3.6V
● Logic Voltage VDRIVE = 1.65V to 3.6V
● Power-down current : <10 μA
● Internal 2.5V Reference
● Internal Power on Reset
● High speed serial interface SPI
● 20-lead LFCSP
