The AD7910/AD7920 are 10-bit and 12-bit, high speed, low power, successive-approximation ADCs respectively. The parts operate from a single 2.35 V to 5.25 V power supply and feature throughput rates up to 250 kSPS. The parts contain a low-noise, wide bandwidth track/hold amplifier, which can handle input frequencies in excess of 6 MHz.
The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipelined delays associated with the part.
The AD7910/AD7920 use advanced design techniques to achieve very low power dissipation at high throughput rates.
The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus the analog input range for the part is 0 to VDD. The conversion rate is determined by the SCLK.
Features and Benefits
| Analog to Digital Converters |
Document | note |
AD7910/AD7920: 250 kSPS, 10-/12-Bit ADCs in 6 Lead SC70 Data Sheet (Rev. C) | PDF 486 kB |
Document | note |
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog | PDF 1885 kB |
Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
---|---|---|---|---|---|---|
AD7910AKSZ-500RL7 Production | 6 ld SC70 | OTH 500 | -40 to 85C | 2.46 | 2.07 | Y |
AD7910AKSZ-REEL7 Production | 6 ld SC70 | REEL 3000 | -40 to 85C | 0 | 1.77 | Y |
AD7910ARMZ Production | 8 ld MSOP | OTH 50 | -40 to 85C | 2.46 | 2.07 | Y |