Product Details
The AD7862 is a high speed, low power, dual 12-bit A/D converter that operates from a single +5 V supply. The part contains two 4 µs successive approximation ADCs, two track/ hold amplifiers, an internal +2.5 V reference and a high speed parallel interface. There are four analog inputs that are grouped into two channels (A & B) selected by the A0 input. Each channel has two inputs (VA1 & VA2 or VB1 & VB2) that can be sampled and converted simultaneously thus preserving the relative phase information of the signals on both analog inputs. The part accepts an analog input range of ±10 V (AD7862-10), ±2.5 V (AD7862-3) and 02.5 V (AD7862-2). Overvoltage protection on the analog inputs for the part allows the input voltage to go to ±17 V, ±7 V or +7 V, respectively, without causing damage.
A single conversion start signal (CONVST) places both track/ holds into hold simultaneously and initiates conversion on both inputs. The BUSY signal indicates the end of conversion, and at this time the conversion results for both channels are available to be read. The first read after a conversion accesses the result from VA1 or VB1, while the second read accesses the result from VA2 or VB2, depending on whether the multiplexer select A0 is low or high, respectively. Data is read from the part via a 12-bit parallel data bus with standard CS and RD signals.
In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.
The AD7862 is fabricated in Analog Devices' Linear Compatible CMOS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low power CMOS logic. It is available in 28-lead SSOP, SOIC and DIP.
12 Bit Analog to Digital Converter 4 Input 2 SAR 28-SSOP
Manufacturer: Analog Devices Inc.
Win Source Part Number: 144649-AD7862ARSZ-10
Packaging: Tube/Rail
Features: Simultaneous Sampling
Configuration: MUX-S/H-ADC
Number of Inputs: 4
Input Type: Single Ended
Number of Bits: 12
Data Interface: Parallel
Number of A/D Converters: 2
Reference Type: External, Internal
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C
Case / Package: 28-SSOP
Analog Supply Voltage: 5V
Digital Supply Voltage: 5V
Sampling Rate: 250k
Popularity: Medium
Fake Threat In the Open Market: 41 pct.
Supply and Demand Status: Limited
IC ADC 12BIT SAR 28SSOP
The AD7862 is a high speed, low power, dual 12-bit A/D converter that operates from a single +5 V supply. The part contains two 4 °s successive approximation ADCs, two track/ hold amplifiers, an internal +2.5 V reference and a high speed parallel interface. There are four analog inputs that are grouped into two channels (A & B) selected by the A0 input. Each channel has two inputs (VA1 & VA2 or VB1 & VB2) that can be sampled and converted simultaneously thus preserving the relative phase information of the signals on both analog inputs. The part accepts an analog input range of °10 V (AD7862-10), °2.5 V (AD7862-3) and 0°2.5 V (AD7862-2). Overvoltage protection on the analog inputs for the part allows the input voltage to go to °17 V, °7 V or +7 V, respectively, without causing damage.A single conversion start signal (CONVST) places both track/ holds into hold simultaneously and initiates conversion on both inputs. The BUSY signal indicates the end of conversion, and at this time the conversion results for both channels are available to be read. The first read after a conversion accesses the result from VA1 or VB1, while the second read accesses the result from VA2 or VB2, depending on whether the multiplexer select A0 is low or high, respectively. Data is read from the part via a 12-bit parallel data bus with standard CS and RD signals.In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.The AD7862 is fabricated in Analog Devices' Linear Compatible CMOS (LC2MOS) process, a mixed technology process that combines precision bipolar circuits with low power CMOS logic. It is available in 28-lead SSOP, SOIC and DIP.
AD7862 - Simultaneous Sampling Dual 12-Bit ADC
ADC 12-Bit Dual 250kSPS 4-Ch 10V SSOP28 - Data Converters - General Purpose ADCs
Delivery on production packaging - Tube. This product is non-returnable.
ADC 12-Bit Dual 250kSPS 4-Ch 10V SSOP28 - Data Converters - General Purpose ADCs
ADC 12-Bit Dual 250kSPS 4-Ch 10V SSOP28 - Data Converters - General Purpose ADCs
| Analog Devices, Inc. | Quarktwin Technology Ltd. | Win Source Electronics | Shenzhen Shengyu Electronics Technology Limited | Richardson RFPD | Rochester Electronics | RS Components, Ltd. | |
|---|---|---|---|---|---|---|---|
| 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 | Analog-to-Digital Converter (ADC) Chips |
| Product Number | AD7862ARSZ-10 | AD7862ARSZ-10 | 144649-AD7862ARSZ-10 | AD7862ARSZ-10 | AD7862ARSZ-10 | AD7862ARSZ-10 | 7589875P |
| Product Name | Simultaneous Sampling Dual 250 kSPS 12-Bit ADC | Analog to Digital Converters (ADC) | Data Acquisition - Data Acquisition - Analog to Digital Converters (ADC) - AD7862ARSZ-10 | Integrated Circuits (ICs) - Data Acquisition - Analog to Digital Converters (ADC) | Converter - ADC | ||
| Interface Type | Parallel | Parallel; Parallel | Parallel | ||||
| Package Type | SOIC; SSOP; PDIP | SOP; SSOP; 28-SSOP (0.209\", 5.30mm Width) | SOP; SSOP; 28-SSOP | 28-SSOP (0.209\", 5.30mm Width) | DIP | SOP; SSOP; SSOP28 | SSOP; SSOP |
| Pins | 28 | 28 | |||||
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | |||
| Dissipation | 75 milliwatts |
