Features: Throughput rate: 625 kSPS Specified for VDD of 2.7 V to 5.25 V Power consumption3.6 mW max at 625 kSPS with 3 V supplies7.5 mW max at 625 kSPS with 5 V supplies 4 analog input channels with a sequencer Software configurable analog inputs4-channel single-ended inputs2-channel fully diffe...
AD7934-6: Features: Throughput rate: 625 kSPS Specified for VDD of 2.7 V to 5.25 V Power consumption3.6 mW max at 625 kSPS with 3 V supplies7.5 mW max at 625 kSPS with 5 V supplies 4 analog input channels wi...
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Resolution (Bits) | 12bit |
T-Put Rate | 625kSPS |
# Chan | 4 |
Supply V | Single(+2.5),Single(+3),Single(+3.3),Single(+5) |
Interface | Par |
Ain Range | Uni (Vref),Uni (Vref) x 2 |
Pkg Type | SOP |
Parameter | Rating |
VDD to AGND/DGND VDRIVE to AGND/DGND Analog Input Voltage to AGND Digital Input Voltage to DGND VDRIVE to VDD Digital Output Voltage to DGND VREFIN to AGND AGND to DGND Input Current to Any Pin Except Supplies1 Operating Temperature Range Commercial (B Version) Storage Temperature Range Junction Temperature JA Thermal Impedance JC Thermal Impedance Lead Temperature, Soldering Reflow Temperature (10 sec to 30 sec) ESD |
−0.3 V to +7 V −0.3 V to VDD +0.3 V −0.3 V to VDD + 0.3 V −0.3 V to +7 V −0.3 V to VDD + 0.3 V −0.3 V to VDRIVE + 0.3 V −0.3 V to VDD + 0.3 V −0.3 V to +0.3 V ±10 mA −40°C to +85°C −65°C to +150°C 150°C 97.9°C/W (TSSOP) 14°C/W (TSSOP) 255°C 1.5 kV |
The AD7934-6 is a 12-bit, high speed, low power, successive approximation (SAR) analog-to-digital converter (ADC). The part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 625 kSPS. The part contains a low noise, wide bandwidth, differential track-and-hold amplifier that handles input frequencies up to 50 MHz.
The AD7934-6 features four analog input channels with a channel sequencer that allows a preprogrammed selection of channels to be converted sequentially. This part can accept either single-ended, fully differential, or pseudo differential analog inputs.
Data acquisition and conversion are controlled by standard control inputs, which allow for easy interfacing to microprocessors and DSPs. The input signal is sampled on the falling edge of CONVST, which is also the point where the conversion is initiated.
The AD7934-6 has an accurate on-chip 2.5 V reference that can be used as the reference source for the analog-to-digital conversion. Alternatively, this pin can be overdriven to provide an external reference.
The AD7934-6 uses advanced design techniques to achieve very low power dissipation at high throughput rates. The part also features flexible power management options. An on-chip control register allows the user to set up different operating conditions, including analog input range and configuration, output coding, power management, and channel sequencing.