ADS7888

Features: • 1.25-MHz Sample Rate Serial Device• 10-Bit Resolution ADS7887• 8-Bit Resolution ADS7888• Zero Latency• 25-MHz Serial Interface• Supply Range: 2.35 V to 5.25 V• Typical Power Dissipation at 1.25 MSPS: 3.8 mW at 3-V V DD 8 mw at 5-V V DD̶...

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SeekIC No. : 004277274 Detail

ADS7888: Features: • 1.25-MHz Sample Rate Serial Device• 10-Bit Resolution ADS7887• 8-Bit Resolution ADS7888• Zero Latency• 25-MHz Serial Interface• Supply Range: 2.35 V...

floor Price/Ceiling Price

Part Number:
ADS7888
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: 2024/5/31

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Product Details

Description



Features:

• 1.25-MHz Sample Rate Serial Device
• 10-Bit Resolution ADS7887
• 8-Bit Resolution ADS7888
• Zero Latency
• 25-MHz Serial Interface
• Supply Range: 2.35 V to 5.25 V
• Typical Power Dissipation at 1.25 MSPS:
   3.8 mW at 3-V V DD
   8 mw at 5-V V DD
• ± 0.35 LSB INL, DNL ADS7887
• ± 0.15 LSB INL, ± 0.1 LSB DNL ADS7888
• 61dB SINAD, -84 dB THD ADSA7887
• 49.5 dB SINAD, -67.5 dB THD ADS7888
• Unipolar Input Range: 0 V to V DD
• Power Down Current: 1 µ A
• Wide Input Bandwidth: 15 MHz at 3 dB
• 6-Pin SOT23 and SC70 Packages



Application

• Base Band Converters in Radio Communication
• Motor Current/Bus Voltage Sensors in Digital Drives
• Optical Networking (DWDM, MEMS Based Switching)
• Optical Sensors
• Battery Powered Systems
• Medical Instrumentations
• High-Speed Data Acquisition Systems
• High-Speed Closed-Loop Systems



Specifications

  UNIT
+IN to AGND 0.3 V to +V DD +0.3 V
+V DD to AGND 0.3 V to 7.0 V
Digital input voltage to GND 0.3V to (7.0 V)
Digital output to GND 0.3 V to (+V DD + 0.3 V)
Operating temperature range 40 ° C to 125 ° C
Storage temperature range 65 ° C to 150 ° C
Junction temperature (T J Max) 150 ° C
Power dissipation, SOT23 and SC70 packages (T J Max T A )/ JA
JA Thermal impedance SOT23 295.2 ° C/W
SC70 351.3 ° C/W
Lead temperature, soldering Vapor phase (60 sec) 215 ° C
Infrared (15 sec) 220 ° C
(1) Stresses above those listed under absolute maximum ratings may cause permanent damage to the device. Exposure to absolute maximum conditions for extended periods may affect device reliability.


Description

The ADS7887 is a 10-bit, 1.25-MSPS analog-to-digital converter (ADC), and the ADS7888 is a 8-bit, 1.25-MSPS ADC. The  ADS7887 and ADS7888  include a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by the CS and SCLK signals for glueless connections with microprocessors and DSPs. The input signal is sampled with the falling edge of CS , and SCLK is used for conversion and serial data output.

The  ADS7887 and ADS7888  operate from a wide supply range from 2.35 V to 5.25 V. The low power consumption of the devices make them suitable for battery-powered applications. The devices also include a power saving powerdown feature for when the devices are operated at lower conversion speeds.

The high level of the digital input to the  ADS7887 and ADS7888  is not limited to device V DD . This means the digital input can go as high as 5.25 V when device supply is 2.35 V. This feature is useful when digital signals are coming from other circuit with different supply levels. Also this relaxes restriction on power up sequencing.

The ADS7887 and ADS7888 are available in 6-pin SOT23 and SC70 packages and are specified for operation from -40 ° C to 125 ° C.




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