Features: ·12-Bit ADC with Fast Conversion Time: 2 µs·Two Single-Ended Analog Input Channels·Specified for VDD of 2.7 V to 5.5 V·Low Power Consumption·Fast Throughput Rate:- 188 KSPS·Sequencer Operation·Automatic Cycle Mode·I2CR Compatible Serial Interface·I2CR Interface supports:·Standard, ...
AD7992: Features: ·12-Bit ADC with Fast Conversion Time: 2 µs·Two Single-Ended Analog Input Channels·Specified for VDD of 2.7 V to 5.5 V·Low Power Consumption·Fast Throughput Rate:- 188 KSPS·Sequencer...
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Parameter | Rating |
VDD to GND Analog Input Voltage to GND Reference Input Voltage to GND Total AIN/REFIN Current (Indefinite) Digital Input Voltage to GND Digital Output Voltage to GND Operating Temperature Range Storage Temperature Range Maximum Junction Temperature MSOP JA Thermal Impedance JC Thermal Impedance Lead Temperature, Soldering (10 sec) IR Reflow, Peak Temperature |
0.3 V to +7 V 0.3 V to VDD + 0.3 V 0.3 V to VDD + 0.3 V 30 mA 0.3 V to VDD + 0.3 V 0.3 V to VDD + 0.3 V 40°C to +105°C 65°C to +150°C 150°C 206°C/W 44°C/W 300°C 220°C |
Resolution (Bits) | 12bit |
T-Put Rate | 79kSPS |
# Chan | 2 |
Supply V | Single(+3),Single(+3.3),Single(+5) |
Interface | I2C/Ser 2-Wire,Ser |
Ain Range | Uni (Vref),Uni Vdd |
SNR (dB) | 71dB |
Pkg Type | SOP |
The AD7992 is a 12-bit, high speed, low power, successive- approximation ADC. The part operates from a single 2.7 V to 5.5 V power supply and features a conversion time of 2 µs. The part contains a two channel multiplexer and track/hold amplifier which can handle input frequencies in excess of TBD kHz.
The AD7992 provides a two-wire serial interface which is compatible with I2C interfaces. The part comes in two versions, AD7992-0, and AD7992-1. Each version allows for a minimum of two different I2C addresses. The AD7992-0 supports Standard and Fast I2C interface Modes, while the AD7992-1 supports Standard, Fast, and two High-Speed I2C Interface Modes. The AD7992 normally remains in a power-down state while not converting, powering up only to perform conversions. The conversion process can be controlled using theCONVST pin, an Automatic Conversion Cycle selected through software control, or a mode where conversions occur across read Address operations.
The AD7992 uses advanced design techniques to achieve low power dissipation with a fast conversion time. There are no pipeline delays associated with the part. The reference for the part is applied externally and can be in the range of 1.2V to VDD. This allows the widest dynamic input range to the ADC. On-chip registers can be programmed with high and low limits for the conversion result, and an open drain Out of Range Indicator output (ALERT), becomes active when the programmed high or low limits are violated. This output can be used as an interrupt.