Purchase ADS7888, In-stock ADS7888 From SeekIC.
Part Number: ADS7888
Description: The ADS7887 is a 10-bit, 1.25-MSPS analog-to-digital converter (ADC), and the ADS7888 is a 8-bit, 1.25...
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ADS7888
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DataSheet
General Description
ADS7888 General 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 devices 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 devices 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 device 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.
ADS7888 Maximum Ratings
| 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 | |
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 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
• 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
ADS7888 Typical 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
• 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
ADS7888
PDF/DataSheet Download
- Datasheet: ADS7888
- File Size: 522767 KB
- Manufacturer: BURR-BROWN [Burr-Brown Corporation]
- Click here to Download
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ADS7887
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 devices include a capacitor based SAR A/D converter with inherent sample and hold. The serial interface in each device is controlled by theCS...
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