Features: `Complete quad, 16-bit digital-to-analog converters (DACs)
`Programmable output range: ±4.096 V, ±4.201 V, or ±4.311 V
`±1 LSB maximum INL error, ±1 LSB maximum DNL error
`Low noise: 60 nV/Hz
`Settling time: 10 s maximum
`Integrated reference buffers
`On-chip die temperature sensor
`Output control during power-up/brownout
`Programmable short-circuit protection
`Simultaneous updating via LDAC
`Asynchronous CLR to zero code
`Digital offset and gain adjust
`Logic output control pins
`DSP-/microcontroller-compatible serial interface
`Temperature range: −40 to +105
`iCMOS® process technology1Application· Industrial automation
· Open-/closed-loop servo control Process control
· Data acquisition systems
· Automatic test equipment
Automotive test and measurement
· High accuracy instrumentationPinout
SpecificationsTA = 25, unless otherwise noted. Transient currents of up to 100 mA do not cause SCR latch-up.
| Parameter |
Rating |
AVDD to AGNDX, DGND
AVSS to AGNDX, DGND
DVCC to DGND
Digital Inputs to DGND
Digital Outputs to DGND V
REFIN to AGNDX, PGND
VOUTA, VOUTB, VOUTC, VOUTD to
AGNDX
AGNDX to DGND
Operating Temperature Range (TA)
Industrial
Storage Temperature Range
Junction Temperature (TJ max)
Power Dissipation
32-Lead TQFP
JA Thermal Impedance
JC Thermal Impedance
Lead Temperature
Soldering |
−0.3 V to +17 V
+0.3 V to −17 V
−0.3 V to +7 V
−0.3 V to DVCC + 0.3 V or 7 V
(whichever is less)
−0.3 V to DVCC + 0.3
−0.3 V to AVDD + 0.3V
AVSS to AVDD
−0.3 V to +0.3 V
−40 to +105
−65 to +150
150
(TJ max TA)/ JA
65/W
12/W
JEDEC Industry Standard
J-STD-020 |
Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.DescriptionThe AD5765 is a quad, 16-bit, serial input, bipolar voltage output digital-to-analog converter that operates from supply voltages of ±4.75 V up to ±5.25 V. Nominal full-scale output range is ±4.096 V. The AD5765 provides integrated output amplifiers, reference buffers and proprietary power-up/powerdown control circuitry. The part also features a digital I/O port, which is programmed via the serial interface. The parts incorporate digital offset and gain adjust registers per channel.
The AD5765 is a high performance converter that offers guaranteed monotonicity, integral nonlinearity (INL) of ±1 LSB, low noise, and 10 s settling time. During power-up (when the supply voltages are changing), the outputs are clamped to 0 V via a low impedance path.
The AD5765 uses a serial interface that operates at clock rates of up to 30 MHz and is compatible with DSP and microcontroller interface standards. Double buffering allows the simultaneous updating of all DACs. The input coding is programmable to either twos complement or offset binary formats. The asynchronous clear function clears all DAC registers to either bipolar zero or zero scale depending on the coding used. The AD5765 is ideal for both closed-loop servo control and open-loop control applications. The AD5765 is available in a 32-lead TQFP, and offers guaranteed specifications over the −40 to +105industrial temperature range. See Figure 1, the functional block diagram.
AD5765 Data Sheet
