Catalog
16-Bit, 1 MSPS/500 kSPS PulSAR ADCs in MSOP/LFCSP
Key Features
• High performanceTrue differential analog input range: ±VREF0 V to VREFwith VREFbetween 2.5 V and 5 VThroughput: 1 MSPS/500 kSPS optionsZero latency architecture16-bit resolution with no missing codesINL: ±0.4 LSB typical, ±1 LSB maximumDynamic range: 95.5 dB, VREF= 5 VSNR: 94 dB at fIN= 1 kHz, VREF= 5 VTHD: −118.5 dB at fIN= 1 kHz, VREF= 5 VSINAD: 93.5 dB at fIN= 1 kHz, VREF= 5 V
• True differential analog input range: ±VREF0 V to VREFwith VREFbetween 2.5 V and 5 V
• 0 V to VREFwith VREFbetween 2.5 V and 5 V
• Throughput: 1 MSPS/500 kSPS optionsZero latency architecture
• Zero latency architecture
• 16-bit resolution with no missing codes
• INL: ±0.4 LSB typical, ±1 LSB maximum
• Dynamic range: 95.5 dB, VREF= 5 V
• SNR: 94 dB at fIN= 1 kHz, VREF= 5 V
• THD: −118.5 dB at fIN= 1 kHz, VREF= 5 V
• SINAD: 93.5 dB at fIN= 1 kHz, VREF= 5 V
• Low power dissipationSingle-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interfaceAD7915: 4 mW at 1 MSPS (VDD only) 7 mW at 1 MSPS (total)70 μW at 10 kSPS
• Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface
• AD7915: 4 mW at 1 MSPS (VDD only) 7 mW at 1 MSPS (total)
• 70 μW at 10 kSPS
• Proprietary serial interface: SPI-/QSPI-/MICROWIRE™-/DSP-compatible1
• 10-lead packages: MSOP and 3 mm × 3 mm LFCSP
• Wide operating temperature range: −40°C to +125°C
Description
AI
The AD7915/AD7916 are 16-bit, successive approximation, analog-to-digital converters (ADCs) that operate from a single power supply, VDD. They contain a low power, high speed, 16-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, the AD7915/AD7916 sample the voltage difference between the IN+ and IN− pins. The voltages on these pins typically swing in opposite phases between 0 V and VREF. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. The power consumption of the AD7915/AD7916 scales linearly with throughput.The AD7915/AD7916 are serial peripheral interface (SPI) compatible, which features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus. They are compatible with 1.8 V, 2.5 V, 3 V, and 5 V logic using the separate VIO supply.The AD7915/AD7916 are available in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +125°C.APPLICATIONSAutomated test equipmentData acquisition systemsMedical instrumentsMachine automation
