AD5763CSUZ Analog Devices Inc, AD5763CSUZ Datasheet - Page 24

• Manufacturer Part Number: AD5763CSUZ
• Description: DAC 16BIT DUAL 5V 2LSB 32-TQFP
• Manufacturer: Analog Devices Inc

Specifications of AD5763CSUZ

• Data Interface: Serial
• Design Resources: High Accuracy, Bipolar Voltage Output Digital-to-Analog Conversion Using AD5763 (CN0074)
• Settling Time: 8µs
• Number Of Bits: 16
• Number Of Converters: 2
• Voltage Supply Source: Dual ±
• Power Dissipation (max): 45mW
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 32-TQFP, 32-VQFP
• Resolution (bits): 16bit
• Input Channel Type: Serial
• Supply Voltage Range - Analogue: 4.75V To 5.25V
• Supply Voltage Range - Digital: 2.7V To 5.25V
• Supply: RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD5763
APPLICATIONS INFORMATION
TYPICAL OPERATING CIRCUIT
Figure 29 shows the typical operating circuit for the AD5763.
The only external components needed for this precision 16-bit
DAC are a reference voltage source, decoupling capacitors on
the supply pins and reference inputs, and an optional short-
circuit current setting resistor. Because the device incorporates
reference buffers, it eliminates the need for an external bipolar
reference and associated buffers. This leads to overall savings in
both cost and board space.
In Figure 29, AV
to −5 V and AGNDA and AGNDB are connected to REFGND.
DD
is connected to +5 V and AV
BIN/2sCOMP
RSTOUT
RSTIN
SYNC
LDAC
SCLK
SDIN
SDO
D0
D1
SS
is connected
NC = NO CONNECT
+5V
100nF
10µF
Figure 29. Typical Operating Circuit
1
2
3
4
5
6
7
8
SYNC
SCLK
SDO
CLR
LDAC
D0
D1
SDIN
100nF
+5V
10µF
Rev. A | Page 24 of 28
2
32 31 30 29 28 27 26 25
9
+5V –5V
V
10µF
IN
10 11 12 13 14 15 16
ADR420
GND
AD5763
4
+5V
V
OUT
10µF
100nF
Precision Voltage Reference Selection
To achieve the optimum performance from the AD5763 over its
full operating temperature range, a precision voltage reference
must be used. Give thought to the selection of a precision volt-
age reference. The AD5763 has two reference inputs, REFA and
REFB. The voltages applied to the reference inputs are used to
provide a buffered positive and negative reference for the DAC
cores. Therefore, any error in the voltage reference is reflected
in the outputs of the device.
There are four possible sources of error to consider when
choosing a voltage reference for high accuracy applications:
initial accuracy, temperature coefficient of the output voltage,
long term drift, and output voltage noise.
+5V
6
–5V
10µF
100nF
100nF
AGNDA
AGNDB
VOUTA
VOUTB
NC
NC
NC
NC
24
23
22
21
20
19
18
17
VOUTA
VOUTB