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AD7945BRZ
+BOMIC DAC 12BIT A-OUT 20SOIC
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ManufacturerAnalog Devices Inc.
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Mfr. Part #AD7945BRZ
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Datasheet AD7945BRZ DataSheet
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Package SOIC-20
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In Stock3622
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Specifications
| Attribute | Value |
| Package | Bulk,Tube |
| ProductStatus | Active |
| NumberofBits | 12 |
| NumberofD/AConverters | 1 |
| SettlingTime | 600µs (Typ) |
| OutputType | Current - Unbuffered |
| DifferentialOutput | No |
| DataInterface | Parallel |
| ReferenceType | External |
| Voltage-SupplyAnalog | 5V |
| Voltage-SupplyDigital | 5V |
| INL/DNL(LSB) | ±0.5 (Max), ±0.5 (Max) |
| Architecture | R-2R |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | 20-SOIC (0.295, 7.50mm Width) |
| SupplierDevicePackage | 20-SOIC |
Overview
Description
The AD7945BRZ operates with a single power supply, typically at 2.7V to 5.5V, and has a maximum sampling rate of about 600 kSPS (kilosamples per second). It offers a differential input with a wide dynamic range, enhancing its ability to handle various signal types with precision. The device also includes a versatile serial interface that simplifies communication with microcontrollers and DSPs.
The ADC’s compact design and robust performance make it ideal for space-constrained applications. Moreover, its low power consumption ensures efficiency in battery-operated devices. The AD7945BRZ's combination of speed, accuracy, and interface flexibility supports diverse applications requiring reliable analog-to-digital conversion.
Equivalent
1. LTC1407 from Linear Technology
2. MAX11100 from Maxim Integrated
3. MCP33111 from Microchip Technology
These alternatives offer similar resolution and performance characteristics, but specific parameters should be verified to ensure suitability for your application.
Features
1. Resolution and Speed: It offers 14-bit resolution with a sampling rate of up to 1.5 million samples per second (MSPS).
2. Low Power Consumption: It is designed for low power consumption, making it suitable for portable and battery-operated devices.
3. Single-Supply Operation: Operates from a single 2.5 V supply, simplifying power supply design.
4. INL and DNL: Excellent integral nonlinearity (INL) and differential nonlinearity (DNL) performance for accurate signal conversion.
5. Serial Interface: Features a versatile serial interface compatible with SPI, QSPI, MICROWIRE, and DSP standards, facilitating easy integration with microcontrollers and DSPs.
6. Compact Package: Available in a small 10-lead MSOP or 10-lead LFCSP package, aiding in space-constrained applications.
7. Temperature Range: Operates over a wide temperature range, typically from −40°C to +85°C, suitable for industrial applications.
These features make the AD7945BRZ ideal for applications requiring high speed, precision, and efficient power usage.
Pinout
The pin functions include:
1. Analog Inputs (IN+ and IN-): Differential inputs for the analog signal.
2. Reference Input (REF): Sets the reference voltage for conversion.
3. Supply Voltage (VDD): Powers the ADC.
4. Common (GND): Ground reference.
5. Conversion Control (CNV): Initiates the conversion process.
6. Serial Clock (SCK): Clock input for serial data transfer.
7. Serial Data Out (SDO): Outputs the conversion result in serial format.
8. Busy Indicator (BUSY): Indicates when a conversion is in progress.
These pins enable the AD7945BRZ to perform high-speed and accurate data conversion suitable for various applications, including data acquisition systems and instrumentation.
Manufacturer
Application
1. Industrial Automation: For precise measurement and control processes.
2. Instrumentation: Used in data acquisition systems for accurate signal conversion.
3. Medical Devices: Helpful in diagnostic equipment requiring high-precision data conversion.
4. Communications: Facilitates reliable data conversion in high-bandwidth applications.
5. Consumer Electronics: Used in high-performance audio and imaging devices.
Its robust performance, low power consumption, and compact design make it suitable for demanding environments and portable applications.