The MAX1224/MAX1225 low-power, high-speed, serialoutput,
12-bit, analog-to-digital converters (ADCs) operate
at up to 1.5Msps. These devices feature true-differential
inputs, offering better noise immunity, distortion
improvements, and a wider dynamic range over singleended
inputs. A standard SPI™/QSPI™/MICROWIRE™
interface provides the clock necessary for conversion.
These devices easily interface with standard digital signal
processor (DSP) synchronous serial interfaces.
The MAX1224/MAX1225 operate from a single +2.7V to
+3.6V supply voltage and require an external reference.
The MAX1224 has a unipolar analog input, while the
MAX1225 has a bipolar analog input. These devices feature
a partial power-down mode and a full power-down
mode for use between conversions, which lower the supply
current to 1mA (typ) and 1µA (max), respectively. Also
featured is a separate power-supply input (VL), which
allows direct interfacing to +1.8V to VDD digital logic. The
fast conversion speed, low-power dissipation, good AC
performance, and DC accuracy (±1.5 LSB INL) make the
MAX1224/MAX1225 ideal for industrial process control,
motor control, and base-station applications.
The MAX1224/MAX1225 come in a 12-pin TQFN package,
and are available in the commercial (0°C to +70°C)
and extended (-40°C to +85°C) temperature ranges.
Key Features
Applications/Uses
1.5Msps Sampling Rate
Only 18mW (typ) Power Dissipation
Only 1µA (max) Shutdown Current
High-Speed, SPI-Compatible, 3-Wire Serial Interface
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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