AD7298
PRODUCTION8-Channel, 1MSPS, 12-Bit SAR ADC with Temperature Sensor
- Part Models
- 2
- 1ku List Price
- Starting From $5.01
Part Details
- 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
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 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.
Documentation
Data Sheet 1
User Guide 1
Application Note 1
Technical Articles 1
Tutorial 3
Technical Book 1
Product Selection Guide 1
Device Drivers 2
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7298BCPZ | 20-Lead LFCSP (4mm x 4mm w/ EP) | ||
| AD7298BCPZ-RL7 | 20-Lead LFCSP (4mm x 4mm w/ EP) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
May 11, 2014 - 13_0231 Assembly Transfer of Select 4x4 and 5x5mm LFCSP Products to STATS ChipPAC China. |
||
| AD7298BCPZ | PRODUCTION | |
| AD7298BCPZ-RL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
FPGA/HDL 2
Device Drivers 2
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| High Voltage Op Amps ≥12V 3 | ||
| ADA4899-1 | PRODUCTION | Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp |
| ADA4077-2 | RECOMMENDED FOR NEW DESIGNS | 4 MHz, 7 nV/√Hz, Low Offset and Drift, High Precision Dual Amplifier |
| ADA4077-1 | RECOMMENDED FOR NEW DESIGNS | 4 MHz, 7 nV/√Hz, Low Offset and Drift, High Precision Single Amplifier |
| Low Input Bias Current Op Amps (≤100 pA) 3 | ||
| ADA4627-1 | PRODUCTION | 36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp |
| ADA4637-1 | PRODUCTION | 30 V, 80 MHz, Low Noise, Low Bias Current, JFET Op Amp |
| AD8610 | PRODUCTION | Precision, Low Input Bias Current, Wide BW JFET Single Op Amp |
| Low Noise Op Amps (≤ 10nV/√Hz) 2 | ||
| ADA4897-1 | RECOMMENDED FOR NEW DESIGNS | 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers |
| ADA4896-2 | RECOMMENDED FOR NEW DESIGNS | 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 4 | ||
| AD8021 | PRODUCTION | Low Noise, High Speed Amplifier for 16-Bit Systems |
| OP177 | PRODUCTION | Ultraprecision Operational Amplifier |
| AD8655 | PRODUCTION | Low Noise, Precision CMOS Amplifier |
| ADA4841-1 | PRODUCTION | Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
| Series Voltage References 3 | ||
| ADR431 | PRODUCTION | Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
| ADR441 | PRODUCTION | Ultralow Noise, LDO XFET® 2.5V Voltage Reference w/Current Sink and Source |
| ADR4525 | PRODUCTION | Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference |
| Standard Digital Isolators 3 | ||
| ADUM1401 | PRODUCTION | Quad-Channel Digital Isolator (3/1 Channel Directionality) |
| ADUM4401 | PRODUCTION |
5 kV RMS Quad-Channel Digital Isolators |
| ADUM3481 | PRODUCTION | Small, 3.75 kV RMS Quad Digital Isolators (3/1 Channel Directionality) |
| Parts | Product Life Cycle | Description |
|---|---|---|
| AD7091R-8 | PRODUCTION | 8-Channel, 1 MSPS, Ultralow Power, 12-Bit ADC in 24-Lead TSSOP |
Tools & Simulations
IBIS Model 1
Evaluation Kits
AD7298 Evaluation Board