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MFG:ADI D/C:09
Part Number: AD7453
MFG: ADI
D/C: 09
Description: The AD74531 is a 12-bit, high speed, low power, successive approximation (SAR) analog-to-di...
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AD7453
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DataSheet
General Description
AD7453 General Description
The AD74531 is a 12-bit, high speed, 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 up to 555 kSPS.
The part contains a low noise, wide bandwidth, differential track-and-hold amplifier (T/H) that can handle input frequen-cies up to 3.5 MHz. The reference voltage for the AD7453 is applied externally to the VREF pin and can range from 100 mV to VDD, depending on the power supply and what suits the application.
The conversion process and data acquisition are controlled using CS and the serial clock, allowing the device to nterface with microprocessors or DSPs. The input signals are sampled on the falling edge of CS; the conversion is also initiated at this point.
The SAR architecture of this part ensures that there are no pipeline delays. The AD7453 uses advanced design techniques to achieve very low power dissipation.
AD7453 Maximum Ratings
| Parameter | Rating |
| VDD to GND VIN+ to GND VIN to GND Digital Input Voltage to GND Digital Output Voltage to GND VREF to GND Input Current to Any Pin Except Supplies1 Operating Temperature Range Commercial (B Version) Storage Temperature Range Junction Temperature JA Thermal Impedance JC Thermal Impedance Lead Temperature, Soldering Vapor Phase (60 secs) Infrared (15 secs) ESD |
0.3 V to +7 V 0.3 V to VDD + 0.3 V 0.3 V to VDD + 0.3 V 0.3 V to +7 V 0.3 V to VDD + 0.3 V 0.3 V to VDD + 0.3 V ±10 mA 40 to +85 65 to +150 150 211.5/W 91.99/W 215 220 1 kV |
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
1 Transient currents of up to 100 mA will not cause SCR latch-up.
AD7453 Features
`Specified for VDD of 2.7 V to 5.25 V
`Low power at max throughput rate:
3.3 mW max at 555 kSPS with VDD = 3 V
7.25 mW max at 555 kSPS with VDD = 5 V
`Pseudo differential analog input
`Wide input bandwidth:
70 dB SINAD at 100 kHz input frequency
`Flexible power/serial clock speed management
`No pipeline delays
`High speed serial interface:
SPI®/QSPI™/MICROWIRE™/DSP compatible
`Power-down mode: 1 A max
`8-lead SOT-23 package
`Low power at max throughput rate:
3.3 mW max at 555 kSPS with VDD = 3 V
7.25 mW max at 555 kSPS with VDD = 5 V
`Pseudo differential analog input
`Wide input bandwidth:
70 dB SINAD at 100 kHz input frequency
`Flexible power/serial clock speed management
`No pipeline delays
`High speed serial interface:
SPI®/QSPI™/MICROWIRE™/DSP compatible
`Power-down mode: 1 A max
`8-lead SOT-23 package
AD7453 Typical Application
·Transducer interface
·Battery-powered systems
·Data acquisition systems
·Portable instrumentation
·Battery-powered systems
·Data acquisition systems
·Portable instrumentation
AD7453 Connection Diagram
AD7453
PDF/DataSheet Download
- Datasheet: AD7453
- File Size: 1449015 KB
- Manufacturer: AD
- Click here to Download
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