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AD7457BRT-R2

IC ADC 12BIT W/DIFF INP SOT23-8

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SeekIC No. : 004270217 Detail

AD7457BRT-R2: IC ADC 12BIT W/DIFF INP SOT23-8

AD7457BRT-R2 Data Sheet

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Part Number:
AD7457BRT-R2
Mfg:
Analog Devices Inc
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/28

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Product Details

Description



Features:

Specified for VDD  of 2.7 V to 5.25 V 
Low power:
0.9 mW max at 100 kSPS with VDD  = 3 V
3 mW max at 100 kSPS with VDD  = 5 V
Pseudo differential analog input
Wide input bandwidth:
70-dB SINAD at 30 kHz input frequency
Flexible power/serial clock speed management
No pipeline delays
High speed serial interface-SPI®/QSPI™/
MICROWIRE™/DSP compatible
Automatic power-down mode
8-lead SOT-23 package 

 


Application

Transducer interface
Battery-powered systems
Data acquisition systems
Portable instrumentation


Pinout

Connection Diagram


Specifications

Parameters Rating
VDD to GND −0.3 V to +7 V
VIN+ to GND −0.3 V to VDD + 0.3 V
VIN to GND −0.3 V to VDD + 0.3 V
Digital Input Voltage to GND −0.3 V to +7 V
Digital Output Voltage to GND −0.3 V to VDD + 0.3 V
VREF to GND −0.3 V to VDD + 0.3 V
Input Current to Any Pin except ±10 mA
Supplies1
  
Operating Temperature Range  
Commercial (B Version) −40°C to +85°C
Storage Temperature Range −65°C to +150°C
Junction Temperature 150°C
JA Thermal Impedance 211.5°C/W (SOT-23)
JC Thermal Impedance 91.99°C/W (SOT-23)
Lead Temperature, Soldering  
Vapor Phase (60 s) 215°C
Infrared (15 s) 220°C



Description

The AD7457 is a 12-bit, low power, successive approximation (SAR) analog-to-digital converter that features a pseudo differential analog input. This part operates from a single 2.7 V to 5.25 V power supply and features throughput rates of up to 100 kSPS. 

The part AD7457BRT-R2 contains a low noise, wide bandwidth, differential track-and-hold amplifier (T/H) that can handle input frequencies in excess of 1 MHz. The reference voltage for the AD7457 is applied externally to the VREF pin and can range from 100 mV to VDD, depending on what suits the application. 

The conversion process and data acquisition of AD7457BRT-R2 are controlled using CS and the serial clock, allowing the device to interface with microprocessors or DSPs. 

The SAR architecture of this part AD7457BRT-R2 ensures that there are no pipeline delays. 

The AD7457 uses advanced design techniques to achieve very  low power dissipation. 




Parameters:

Technical/Catalog InformationAD7457BRT-R2
VendorAnalog Devices Inc
CategoryIntegrated Circuits (ICs)
Number of Bits12
Package / CaseSOT-23-8
Data InterfaceSerial
PackagingTape & Reel (TR)
Sampling Rate (Per Second)100k
Operating Temperature-40°C ~ 85°C
Voltage Supply SourceSingle
Number of Inputs and Type1 Pseudo-Differential, Unipolar
Number of Converters1
Power Dissipation (Max)3mW
Lead Free StatusContains Lead
RoHS StatusRoHS Non-Compliant
Other Names AD7457BRT R2
AD7457BRTR2



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