AD7938BCPZ

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AD7938BCPZ

IC ADC 12BIT SAR 32LFCSP

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Spécifications

Part Status Active
Number of Bits 12
Sampling Rate (Per Second) 1.5M
Number of Inputs 4, 7, 8
Input Type Differential, Pseudo-Differential, Single Ended
Data Interface Parallel
Configuration MUX-S/H-ADC
Ratio - S/H:ADC 1:1
Number of A/D Converters 1
Architecture SAR
Reference Type External, Internal
Voltage - Supply, Analog 2.7V ~ 5.25V
Voltage - Supply, Digital 2.7V ~ 5.25V
Operating Temperature -40°C ~ 85°C
Package / Case 32-VFQFN Exposed Pad, CSP
Supplier Device Package 32-LFCSP-VQ (5x5)
Mounting Type Surface Mount
Base Product Number AD7938

Vue d'ensemble

Description

The AD7938BCPZ is a high-speed, 16-bit analog-to-digital converter (ADC) from Analog Devices, designed for precise data acquisition applications. It features a sampling rate of up to 1 MSPS (mega samples per second) and operates with a dual supply voltage, typically ±5V. The device employs a successive approximation register (SAR) architecture, providing excellent linearity and low noise performance.
Its key features include a differential input range, digital output options (SPI-compatible), programmable gain amplifiers, and an integrated reference voltage. The AD7938BCPZ is suitable for various applications, including industrial automation, medical instrumentation, and consumer electronics.
The ADC is housed in a compact LFCSP package, making it suitable for space-constrained designs. It is also equipped with advanced power management features, optimizing performance while minimizing power consumption. Overall, the AD7938BCPZ is a robust solution for applications requiring high precision and speed in converting analog signals to digital data.

Features

The AD7938BCPZ is a high-speed, dual-channel, 12-bit analog-to-digital converter (ADC) from Analog Devices. Key features include:
1. Resolution: 12-bit resolution for accurate conversions.
2. Sampling Rate: 1 MSPS (mega-sample per second) for fast data acquisition.
3. Input Range: Supports a bipolar input range of ±10 V or a unipolar range of 0 to 10 V.
4. Interface: SPI (Serial Peripheral Interface) compatible for easy integration with microcontrollers and DSPs.
5. Low Power Consumption: Typically consumes 10 mW, making it suitable for battery-operated applications.
6. Differential Input: Offers differential input architecture for improved noise performance.
7. Internal Reference: Includes an internal voltage reference for stable performance.
8. Temperature Range: Operates across a wide temperature range (-40°C to +85°C).
9. Package: Available in a compact 28-lead LFCSP package (Lead Frame Chip Scale Package).
These features make the AD7938BCPZ suitable for a variety of applications, including industrial automation, instrumentation, and data acquisition systems.

Package

The AD7938BCPZ comes in a 16-lead LFCSP (Lead Frame Chip Scale Package) with a size of 3mm x 3mm.

Pinout

The AD7938BCPZ is a 12-bit, 1.0 MSPS, successive approximation ADC (Analog-to-Digital Converter) with a total of 28 pins.
Pin Functions:
1. Power Supply Pins: VDD (power supply), VSS (ground).
2. Analog Input Pins: VIN (analog input channels).
3. Reference Voltage Pins: VREF (reference voltage input).
4. Clock Input: CLK (clock input for operation).
5. Digital Interface Pins:
- DOUT (data output),
- DIN (data input),
- CS (chip select),
- RD (read control),
- WR (write control),
- CONVST (conversion start),
- SDO (serial data output).
6. Test Pins: Various pins for testing and configuration.
The AD7938BCPZ is suitable for applications requiring high-speed data conversion with low power consumption.

Manufacturer

The AD7938BCPZ is manufactured by Analog Devices, Inc. (ADI). Analog Devices is a prominent American multinational company that specializes in designing and manufacturing high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965, the company serves a wide range of industries, including industrial automation, automotive, communications, healthcare, and consumer electronics. ADI is known for its innovative technologies and solutions that enable precise measurement and signal processing in various applications. The AD7938BCPZ itself is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) designed for applications requiring high accuracy and fast performance.

Application

The AD7938BCPZ is a 12-bit, dual-channel analog-to-digital converter (ADC) commonly used in applications such as industrial process control, medical instrumentation, consumer electronics, and data acquisition systems. It features high accuracy and fast conversion rates, making it suitable for sensor interfaces, signal conditioning, and multi-channel data logging in various electronic devices.

Equivalent

The AD7938BCPZ is a 12-bit, dual-channel analog-to-digital converter (ADC). Equivalent products include the following:
1. MCP3202 - 12-bit, dual-channel ADC from Microchip.
2. LTC1864 - 16-bit, quad-channel ADC from Analog Devices.
3. MAX11614 - 12-bit, quad-channel ADC from Maxim Integrated.
4. ADS8343 - 16-bit, 4-channel ADC from Texas Instruments.
Always check for specific features and compatibility based on your application requirements.

Expédition

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FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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