Product Details
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
Manufacturer: Analog Devices Inc.
Win Source Part Number: 1316540-AD7890ARZ-2
Category: Integrated Circuits (ICs)>Data Acquisition>ADCs/DAC
Packaging: Tube
Type: Data Acquisition System (DAS)
Standard Package: 31
Mounting: Surface Mount
Sampling Rate (Per Second): 117k
Data Interface: SPI
Number of Channels: 8
Resolution (Bits): 12 b
Voltage Supply Source: Single Supply
Voltage - Supply: 5V
Supplier Device Package: 24-SOIC
Temperature Range - Operating: -40°C ~ 85°C
Case / Package: 24-SOIC (0.295", 7.50mm Width)
ECCN: EAR99
Fake Threat In the Open Market: 85
MSL Level: 3 (168 Hours)
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Other Part Number: 2156-AD7890ARZ-2-505
Base Product Number: AD7890
RoHS Status: ROHS3 Compliant
ADC Single SAR 117KSPS 12-Bit Serial - Data Converters - General Purpose ADCs
Delivery on production packaging - Reel. This product is non-returnable.
ADC Single SAR 117KSPS 12-Bit Serial - Data Converters - General Purpose ADCs
ADC Single SAR 117KSPS 12-Bit Serial - Data Converters - General Purpose ADCs
IC DAS 12BIT 117K 24SOIC
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
Analog Devices, Inc. | Win Source Electronics | RS Components, Ltd. | RS Components, Ltd. | Shenzhen Shengyu Electronics Technology Limited | Richardson RFPD | |
---|---|---|---|---|---|---|
Product Category | Analog-to-Digital Converter (ADC) Chips | Analog-to-Digital Converter (ADC) Chips | Analog-to-Digital Converter (ADC) Chips | Analog-to-Digital Converter (ADC) Chips | Analog-to-Digital Converter (ADC) Chips | Analog-to-Digital Converter (ADC) Chips |
Product Number | AD7890ARZ-2 | 1316540-AD7890ARZ-2 | 7091606P | 1582185 | AD7890ARZ-2 | AD7890ARZ-2 |
Product Name | LC2MOS 8-Channel, 12-Bit Serial Data Acquisition System | Integrated Circuits (ICs) - Data Acquisition - ADCs/DACs - Special Purpose | Integrated Circuits (ICs) - Data Acquisition - ADCs-DACs - Special Purpose | Converter - ADC | ||
Interface Type | Serial | SPI; SPI | Serial; SPI | |||
Package Type | SOIC; CDIP; PDIP | SOIC; 24-SOIC (0.295", 7.50mm Width) | SOIC; SOIC W | SOIC | DIP | |
Pins | 24 | 24 | ||||
Resolution | 12 bits | 12 bits | 12 bits | |||
Dissipation | 50 milliwatts |