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MAX1276, MAX1278,pdf datasheet
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大小:544 |
2009-09-27
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The MAX1276/MAX1278 are low-power, high-speed, serial-
output, 12-bit, analog-to-digital converters (ADCs) that
operate at up to 1.8Msps and have an internal reference.
These devices feature true-differential inputs, offering better
noise immunity, distortion improvements, and a wider
dynamic range over single-ended 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 MAX1276/MAX1278 operate from a single +4.75V to
+5.25V supply voltage. The MAX1276/MAX1278 include
a 4.096V internal reference. The MAX1276 has a unipolar
analog input, while the MAX1278 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 2mA (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, excellent AC performance, and DC
accuracy (±1.25 LSB INL) make the MAX1276/MAX1278
ideal for industrial process control, motor control, and
base-station applications.
The MAX1276/MAX1278 come in a 12-pin TQFN package,
and are available in the extended (-40°C to +85°C)
temperature range.
Applications
Data Acquisition Communications
Bill Validation Portable Instruments
Motor Control
output, 12-bit, analog-to-digital converters (ADCs) that
operate at up to 1.8Msps and have an internal reference.
These devices feature true-differential inputs, offering better
noise immunity, distortion improvements, and a wider
dynamic range over single-ended 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 MAX1276/MAX1278 operate from a single +4.75V to
+5.25V supply voltage. The MAX1276/MAX1278 include
a 4.096V internal reference. The MAX1276 has a unipolar
analog input, while the MAX1278 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 2mA (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, excellent AC performance, and DC
accuracy (±1.25 LSB INL) make the MAX1276/MAX1278
ideal for industrial process control, motor control, and
base-station applications.
The MAX1276/MAX1278 come in a 12-pin TQFN package,
and are available in the extended (-40°C to +85°C)
temperature range.
Applications
Data Acquisition Communications
Bill Validation Portable Instruments
Motor Control
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