AD7839AS Analog Devices Inc, AD7839AS Datasheet - Page 12

• Manufacturer Part Number: AD7839AS
• Description: IC DAC 13BIT OCTAL V-OUT 44-MQFP
• Manufacturer: Analog Devices Inc

Specifications of AD7839AS

• Rohs Status: RoHS non-compliant
• Settling Time: 30µs
• Number Of Bits: 13
• Data Interface: Parallel
• Number Of Converters: 8
• Voltage Supply Source: Analog and Digital, Dual ±
• Power Dissipation (max): 303mW
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 44-MQFP, 44-PQFP
• For Use With: EVAL-AD7839EBZ - BOARD EVAL FOR AD7839

AD7839
these DACs can be operated with supplies of 0 V and –5 V, with
the V
–5 V. Now these can be used to provide the negative reference
voltages for the V
DD
pin connected to 0 V and the GND pin connected to
REF
CONTROLLER
(–) inputs on the AD7839. However, the
ADDR BUS
DATA BUS
SDATA
SCLK
Figure 22. Programmable Reference Generation for the AD7839
LOGIC LEVEL
SHIFT
DECODER
ADDR
0.037 (0.94)
0.025 (0.64)
0.040 (1.02)
0.032 (0.81)
SEATING
*ADDITIONAL PINS OMITTED FOR CLARITY
PLANE
FSIN/CS
FSIN/CS
0.096 (2.44)
0.083 (2.11)
0.077 (1.96)
SCLK
SCLK
Dimensions shown in inches and (mm).
D IN
D IN
MAX
OUTLINE DIMENSIONS
44-Lead MQFP (S-44)
8/10-BIT
8/10-BIT
DAC
DAC
0.8°
0.040 (1.02)
0.032 (0.81)
8°
–12–
GND
GND
+5V
V
V
5V
DD
DD
34
44
digital signals driving the DACs need to be level-shifted from
the 0 V to +5 V range to the –5 V to 0 V range. Figure 22 shows
a typical application circuit to provide programmable reference
capabilities for the AD7839.
33
1
0.033 (0.84)
0.029 (0.74)
0.548 (13.925)
0.546 (13.875)
0.398 (10.11)
(PINS DOWN)
0.390 (9.91)
TOP VIEW
0V TO
0V TO +5V
0.016 (0.41)
0.012 (0.30)
5V
23
11
V
V
DATA BUS
REF
REF
22
12
( )AB
(+)AB
AD7839*
A0, A1, A2
GND
V
V
OUT
OUT
A
B
V
V
OUT
OUT
A
B
REV. 0