AD7298 8-Channel, 1MSPS, 12-Bit SAR ADC with Temperature Sensor
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
Ideally suited to monitoring system variables in a variety of systems including telecommunications, process and industrial control.
High Throughput rate of 1Msps per channel with Low Power Consumption.
Eight Single-Ended Inputs with a Channel Sequencer. A consecutive sequence of channels can be selected on which the ADC cycles and converts.
Integrated temperature sensor with 0.25°C resolution.
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
- Ideally suited to monitoring system variables in a variety of systems including telecommunications, process and industrial control.
- High Throughput rate of 1Msps per channel with Low Power Consumption.
- Eight Single-Ended Inputs with a Channel Sequencer. A consecutive sequence of channels can be selected on which the ADC cycles and converts.
- 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
| IBIS ModelsSoftware & Systems Requirements |
Data Sheets
Application Notes
User Guides
Technical Books
Order Information
Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
---|
AD7298BCPZ Production | 20 ld LFCSP 4x4mm (2.6EP) | OTH 490 | -40 to 125C | 4.59 | 3.9 | Y |
AD7298BCPZ-RL7 Production | 20 ld LFCSP 4x4mm (2.6EP) | REEL 1500 | -40 to 125C | 0 | 3.9 | Y |
Evaluation Boards
Part Number | Description | Price | RoHS |
---|
EVAL-AD7298SDZ | Evaluation Board | 59 | Y |
EVAL-SDP-CB1Z | Evaluation Board | 99 | Y |
Reference Materials