Datasheet for AD7938:
- Manufacturer Part Number : AD7938
- Manufacturer : AD
- Description : 8-Channel, 1.5 MSPS, 12-Bit Parallel ADCs with a Sequencer
- Series : AD7938
- Reference Price : USD 7.48
- Our Price : We have a better price, contact us by email
- Product Type : Precision A/D Converters
- Function : Multiplexed A/D Converters
- Current Suggest : Production
- Status : Production
- RoHS Status: -
- Voltage: -
- Feature: -
- Package Case: -
- Temperature Range: -
- Packing: Reel/Tray/Tube
- Standard Packing Quantity: -
- Country of Origin: -
- Other Part Number : AD7938
- Shipping methods : DHL FEDEX UPS TNT
- Delivery Time : Ship within 1 day.
- Manufacturer Production time : 6-8 weeks (Normally have stocks)
- Weight : 0.001KG
Contact us to check the best price and real time inventory quantity for AD7938. If you need any more information about AD7938, you can also send us by email. Our email is [email protected], we will reply you in 12 hours.
The AD7938/AD7939 are 12-bit and 10-bit, high speed, lowpower, successive approximation (SAR) analog-to-digitalconverters (ADCs). The parts operate from a single 2.7 V to5.25 V power supply and feature throughput rates up to1.5 MSPS. The parts contain a low noise, wide bandwidth,differential track-and-hold amplifier that can handle inputfrequencies up to 50 MHz.
The AD7938/AD7939 feature eight analog input channels witha channel sequencer that allows a preprogrammed selection ofchannels to be converted sequentially. These parts can operatewith either single-ended, fully differential, or pseudodifferential analog inputs.
The conversion process and data acquisition are controlledusing standard control inputs that allow easy interfacing withmicroprocessors and DSPs. The input signal is sampled on thefalling edge of CONVST and the conversion is also initiated atthis point.
The AD7938/AD7939 have an accurate on-chip 2.5 V referencethat can be used as the reference source for the analog-to-digitalconversion. Alternatively, this pin can be overdriven to providean external reference.
These parts use advanced design techniques to achieve verylow power dissipation at high throughput rates. They alsofeature flexible power management options. An on-chip controlregister allows the user to set up different operating conditions,including analog input range and configuration, output coding,power management, and channel sequencing.
Product Highlights
- High throughput with low power consumption.
- Eight analog inputs with a channel sequencer.
- Accurate on-chip 2.5 V reference.
- Single-ended, pseudo differential, or fully differential analog inputs that are software selectable.
- Single-supply operation with VDRIVE function. The VDRIVE function allows the parallel interface to connect directly to 3 V or 5 V processor systems independent of VDD.
- No pipeline delay.
- Accurate control of the sampling instant via a CONVST input and once-off conversion control.
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
