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ADS7835E/2K5

Name: ADS7835E/2K5
Rating: 4.7 (12 reviews)

IC ADC 12BIT SAR 8VSSOP

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製造商。部分 #ADS7835E/2K5
包 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
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規格

Supplier	Texas Instruments,Rochester Electronics, LLC
Package	Tape & Reel (TR),Bulk
ProductStatus	Active
NumberofBits	12
SamplingRate(PerSecond)	500k
NumberofInputs	1
InputType	Single Ended
DataInterface	SPI
Configuration	S/H-ADC
Ratio-S/H:ADC	1:1
NumberofA/DConverters	1
Architecture	SAR
ReferenceType	External, Internal
Voltage-SupplyAnalog	5V
Voltage-SupplyDigital	5V
OperatingTemperature	-40°C ~ 85°C
Package/Case	8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
SupplierDevicePackage	8-VSSOP

概述

Description

ADS7835E/2K5 is TI’s eight-channel, multiplexed analog-to-digital converter. It uses a single 12-bit SAR ADC to digitize up to eight single-ended analog inputs via an on-chip multiplexer. The “/2K5” suffix indicates a 2.5-V full-scale range (2.5-V reference variant). It typically operates from a single 2.7–5.5 V supply and communicates with a microcontroller over a serial interface (I2C-compatible) for easy control and reading of conversion results. Key benefits include low power, small footprint, and rapid channel switching, making it suitable for data-acquisition, instrumentation, and multi-sensor monitoring where many analog signals must be digitized with one ADC. For exact timing, voltage ranges, and reference requirements, consult the datasheet.

Features

Key features of ADS7835E/2K5:
- 8-channel multiplexer feeding an 8‑bit SAR ADC
- Internal 2.5 V reference (2K5) for unipolar 0–2.5 V inputs
- SPI-compatible serial interface for easy MCU integration
- Single-supply operation: 4.5–5.5 V
- On-chip sample/hold
- Low power with selectable power-down mode
- Extended temperature grade: -40°C to +85°C (E variant)
- 8-pin package options (e.g., SOIC/DIP) for compact designs
Applications: data acquisition, sensor monitoring, instrumentation.

Package

ADS7835E/2K5 is available in a 28‑pin plastic package, primarily a TSSOP (Thin Shrink Small Outline Package); 28‑pin SOIC variants are also offered.

Pinout

- Pin count: 8 pins (8-pin package such as DIP/SOIC)
- Function: Analog-to-digital converter with a single-ended input (AIN) and external reference (VREF); uses a SPI-like serial interface with Chip Select (CS), Serial Clock (SCLK), Data In (DIN), and Data Out (DOUT); power and ground are provided by VDD and GND.

Manufacturer

Manufacturer: Analog Devices, Inc. (ADI).
Company type: A U.S.-based multinational semiconductor company that designs and manufactures analog, mixed-signal, and digital signal-processing integrated circuits.

Application

Applications areas for ADS7835E/2K5:
- Data-acquisition systems and multichannel sensor readouts
- Portable/handheld instruments and battery-powered meters
- Industrial and automotive sensor interfaces (temperature, pressure, current, voltage)
- Process control and environmental/medical monitoring
- Robotics and real-time control systems requiring multiplexed inputs
Note: Suitable for low-power, single-supply operation with multiple analog inputs.

Equivalent

Equivalent products (8-channel, 12-bit, multiplexed ADCs with SPI):
- TI ADS7820 / ADS7821
- Microchip MCP3208
If 10-bit resolution is acceptable, Microchip MCP3008 is a common substitute.