DAC7512E/2K5集成电路（IC）的数模转换器（DAC）规格书PDF中文资料

FEATURES

microPOWER OPERATION: 135μA at 5V

POWER-DOWN: 200nA at 5V, 50nA at 3V

POWER SUPPLY: +2.7V to +5.5V

TESTED MONOTONIC BY DESIGN

POWER-ON RESET TO 0V

THREE POWER-DOWN FUNCTIONS

LOW POWER SERIAL INTERFACE WITH

SCHMITT-TRIGGERED INPUTS

ON-CHIP OUTPUT BUFFER AMPLIFIER,

RAIL-TO-RAIL OPERATION

SYNC INTERRUPT FACILITY

SOT23-6 AND MSOP-8 PACKAGES

APPLICATIONS

PORTABLE BATTERY-POWERED

INSTRUMENTS

DIGITAL GAIN AND OFFSET

ADJUSTMENT

PROGRAMMABLE VOLTAGE AND

CURRENT SOURCES

DESCRIPTION

The DAC7512 is a low-power, single, 12-bit buffered voltage

output Digital-to-Analog Converter (DAC). Its on-chip precision

output amplifier allows rail-to-rail output swing to be

achieved. The DAC7512 uses a versatile three-wire serial

interface that operates at clock rates up to 30MHz and is

compatible with standard SPI™, QSPI™, Microwire™, and

DSP interfaces.

The reference for the DAC7512 is derived from the power

supply, resulting in the widest dynamic output range possible.

The DAC7512 incorporates a power-on reset circuit that

ensures that the DAC output powers up at 0V and remains

there until a valid write takes place in the device. The

DAC7512 contains a power-down feature, accessed over the

serial interface, that can reduce the current consumption of

the device to 50nA at 5V.

The low power consumption of this part in normal operation

makes it ideally suited to portable battery-operated equipment.

The power consumption is 0.7mW at 5V reducing to

1μW in power-down mode.

The DAC7512 is available in a SOT23-6 package and an

MSOP-8 package.