ADS7825U/1K

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ADS7825U/1K

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IC ADC 16BIT SAR 28SOIC

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Especificações

Atributo Valor
Supplier Texas Instruments,Rochester Electronics, LLC
Package Tape & Reel (TR),Bulk
ProductStatus Active
NumberofBits 16
SamplingRate(PerSecond) 40k
NumberofInputs 4
InputType Single Ended
DataInterface SPI, Parallel
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 28-SOIC (0.295, 7.50mm Width)
SupplierDevicePackage 28-SOIC

Visão Geral

Description

ADS7825U/1K is Analog Devices’ 12‑bit, single‑channel, successive‑approximation ADC with a serial (SPI‑like) interface. It’s part of the ADS782x family; the U suffix indicates industrial temperature range and 1K denotes a specific package/grade variant. Key points:
- 12‑bit resolution, SAR architecture, serial output (CS, SCLK, DIN/DOUT)
- Supply typically 2.7–5.25 V; input range 0 to VREF (external reference on REF pin)
- Used in data acquisition, instrumentation, and sensor interfaces
- Low power, small footprint; easy microcontroller integration
Operation (typical): power the device, apply a reference, connect the analog input to IN, clock out the 12‑bit result on DOUT with MSB first after the conversion completes.
For exact timing, voltage ranges, power consumption, and package options, consult the latest ADS7825U/1K datasheet, as variants may differ.

Equivalent

Equivalent parts are other 12‑bit, 2‑wire serial ADCs. Closest within Analog Devices: AD7820/AD7821/AD7822 (and AD7825) in the same family. Cross‑vendor options with similar specs: Microchip MCP3201/MCP3202 (12‑bit SPI ADCs); TI TLC2540/TLC2542/TLC2543 (12‑bit, 2‑wire SPI‑like). Verify voltage range, speed (kS/s), and exact interface timing/pinout before substitution.

Features

Here are typical features for the ADS7825U/1K (Analog Devices SAR ADC):
- 12-bit resolution with SAR architecture
- SPI-compatible serial interface (3-wire)
- Single-supply operation: 2.7 V to 5.25 V
- Throughput up to about 200 kSPS
- Input multiplexing: multiple inputs (single-ended or differential)
- Reference: internal reference option (e.g., 2.5 V) or external reference supported
- Low-power operation with standby/power-down modes
- Small package (8-pin) suitable for compact designs
- Industrial temperature range (-40°C to +85°C)
Note: exact package options, voltage references, and input configurations may vary by variant; check the specific datasheet for ADS7825U/1K to confirm.

Pinout

- Pin count: 16 pins (DIP-16/SO-16 package).
- Function: 12‑bit, serial (SPI‑compatible) analog‑to‑digital converter. It has an analog input (and reference), power and ground, plus digital interface pins (CS, SCLK, DIN/DOUT) to transfer conversion results.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- What kind of company: A multinational American semiconductor company that designs and manufactures integrated circuits, specializing in analog, mixed-signal, and digital signal processing ICs.

Application

Typical applications for ADS7825U/1K:
- Data acquisition and instrumentation systems
- Industrial process monitoring and control
- Multiplexed sensor front-ends (temperature, pressure, humidity, strain, gas sensors)
- Automotive sensors and diagnostics
- Portable/medical instrumentation and battery-powered devices
- Environmental monitoring and energy metering
- Building automation and smart-meter applications
- Laboratory/test equipment and educational kits
Notes: it’s a multiplexed, 12‑bit ADC with a serial interface for embedded systems requiring multiple analog inputs in a compact, low-power package.

Package

8-pin plastic SOIC (8-lead) package.

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