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ADS7945 Datasheet PDF - Texas Instruments

Part NameDescriptionManufacturer
ADS7945 14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power Analog-to-Digital Converters Texas-Instruments
Texas Instruments Texas-Instruments
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ADS7945 Datasheet PDF : ADS7945 pdf   
ADS7945 image

DESCRIPTION
The ADS7945/6 are 14-bit, 2 MSPS analog-to-digital converters (ADCs), with differential and single-ended inputs, respectively. The devices operate at a 2 MSPS sample rate with a standard 16-clock data frame. The devices feature both outstanding dc precision and excellent dynamic performance; the ADS7946 is pin-compatible with the 8/10/12-bit ADS7947/8/9 devices. The devices include a two-channel input multiplexer and a low-power successive approximation register (SAR) ADC with an inherent sample-and-hold (S/H) input stage.

FEATURES
• Sample Rate: 2 MSPS
• 14-Bit, Pin-Compatible with 8/10/12-bit ADS7947/8/9 Family (ADS7946)
• Outstanding Performance:
    – SNR: 84 dB (ADS7945)
    – No Missing Codes
    – INL: 1.5 LSB (max) (ADS7945)
• Low Power:
    – 11.6 mW at 2 MSPS Operation
    – Auto Power-Down at Lower Speeds:
        – 7.2 mW at 500 kSPS
        – 1.4 mW at 100 kSPS
        – 0.3 mW at 20 kSPS
• Wide Supply Range:
    – Analog: 2.7 V to 5.25 V
    – Digital: 1.65 V to AVDD
• Simple Serial Interface (SPI)
• Fully Specified from –40°C to +125°C
• Tiny Footprint: 3 mm × 3 mm QFN

APPLICATIONS
• Optical Networking
• Medical Instrumentation
• Battery-Powered Equipment
• Data Acquisition Systems

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