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$5000ADI AD7890AR-4
Data Acquisition ADCs/DACs - Specialized LC2MOS 8CH 12B Data Acquisition System
Brands: Analog Devices, Inc
Mfr.Part #: AD7890AR-4
Datasheet: AD7890AR-4 Datasheet (PDF)
Package/Case: SOIC-24
Product Type: ADCs/DACs - Special Purpose
RoHS Status:
Stock Condition: 2,139 pcs, New Original
Warranty: 1 Year Ovaga Warranty - Find Out More
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AD7890AR-4 General Description
The AD7890 is an 8-channel 12-bit data acquisition system. The part contains an input multiplexer, an on-chip track/hold amplifier, a high speed 12-bit ADC, a 2.5 V reference, and a high speed, serial interface. The part operates from a single 5 V supply and accepts an analog input range of ±10 V (AD7890-10), 0 V to 4.096 V (AD7890-4), and 0 V to 2.5 V (AD7890-2). The multiplexer on the part is independently accessible. This allows the user to insert an antialiasing filter or signal conditioning, if required, between the multiplexer and the ADC. This means that one antialiasing filter can be used for all eight channels. Connection of an external capacitor allows the user to adjust the time given to the multiplexer settling to include any external delays in the filter or signal conditioning circuitry. Output data from the AD7890 is provided via a high speed bidirectional serial interface port. The part contains an on-chip control register, allowing control of channel selection, conversion start, and power-down via the serial port. Versatile, high speed logic ensures easy interfacing to serial ports on microcontrollers and digital signal processors. In addition to the traditional dc accuracy specifications such as linearity, full-scale, and offset errors, the AD7890 is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio. Power dissipation in normal mode is low at 30 mW typical and the part can be placed in a standby (power-down) mode if it is not required to perform conversions. The AD7890 is fabricated in Analog Devices, Inc.'s Linear Compatible CMOS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low power CMOS logic. The part is available in a 24-lead, 0.3" wide, plastic or ceramic dual-in-line package or in a 24-lead small outline package (SOIC_W). Product Highlights Complete 12-Bit Data Acquisition System-on-a-Chip. The AD7890 is a complete monolithic ADC combining an 8-channel multiplexer, 12-bit ADC, 2.5 V reference, and a track/hold amplifier on a single chip. Separate Access to Multiplexer and ADC. The AD7890 provides access to the output of the multiplexer allowing one antialiasing filter for 8 channels—a considerable savings over the 8 antialiasing filters required if the multiplexer is internally connected to the ADC. High Speed Serial Interface. The part provides a high speed serial interface for easy connection to serial ports of microcontrollers and DSP processors.
Features
- High speed: It can sample analog signals at a maximum rate of 4 MSPS.
- 12-bit resolution: It can convert analog signals into 12-bit digital signals.
- Low power consumption: It has a low power consumption of 35 mW.
- Wide operating temperature range: It can operate over a wide temperature range of -40°C to +85°C.
- Small package size: It is available in a small, 28-lead SSOP package.
Application
- Data acquisition systems
- Instrumentation and control systems
- Medical imaging and diagnostic equipment
- Industrial automation and process control systems
- Audio and video signal processing
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| feature-converter-type | General Purpose | feature-architecture | SAR |
| feature-resolution | 12bit | feature-number-of-adcs | 1 |
| feature-number-of-input-channels | 8 | feature-sampling-rate | 117ksps |
| feature-digital-interface-type | Serial (SPI) | feature-input-type | Voltage |
| feature-input-signal-type | Single-Ended | feature-voltage-reference | Internal|External |
| feature-polarity-of-input-voltage | Unipolar | feature-voltage-supply-source | Single |
| feature-input-voltage | 4.096V | feature-maximum-power-dissipation-mw | 50 |
| feature-integral-nonlinearity-error | ±1LSB | feature-signal-to-noise-ratio | |
| feature-no-missing-codes-bit | 12 | feature-packaging | Tube |
| feature-rad-hard | feature-pin-count | 24 | |
| feature-supplier-package | SOIC W | feature-standard-package-name1 | SO |
| feature-cecc-qualified | No | feature-esd-protection | |
| feature-escc-qualified | feature-military | No | |
| feature-aec-qualified | No | feature-aec-qualified-number | |
| feature-auto-motive | No | feature-p-pap | No |
| feature-eccn-code | EAR99 | feature-svhc | Yes |
| feature-svhc-exceeds-threshold | Yes |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
 |
DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
 |
REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
 |
Wire Transfer | charge US$30.00 banking fee. |
 |
Paypal | charge 4.0% service fee. |
 |
Credit Card | charge 3.5% service fee. |
 |
Western Union | charge US.00 banking fee. |
 |
Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
Packing
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Step2 :Vacuum packaging
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Step3 :Anti-static bag
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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.
Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.
We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.
After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Equivalent Parts
For the AD7890AR-4 component, you may consider these replacement and alternative parts:
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Part Number : ADS7816UBE4
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Part Number : ADS7822UC
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Part Number : LTC1865LIMS#PBF
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Package : MSOP10
Description : μPower, 16-Bit, 250ksps 1- and 2-Channel ADCs in MSOP; Package: MSOP; No of Pins: 10; Temperature Range: -40°C to +85°C
Part Number : TLC3548CDW
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Part Number : MAX1240ACPA+
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Datasheet PDF
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