AD5452YRMZ Analog Devices Inc, AD5452YRMZ Datasheet - Page 16

• Manufacturer Part Number: AD5452YRMZ
• Description: IC DAC 12BIT MULT 50MHZ 8-MSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5452YRMZ

• Data Interface: Serial
• Design Resources: Unipolar, Precision DC Digital-to-Analog Conversion using AD5450/1/2/3 8-14-Bit DACs (CN0052) Precision, Bipolar, Configuration for AD5450/1/2/3 8-14bit Multiplying DACs (CN0053) AC Signal Processing Using AD5450/1/2/3 Current Output DACs (CN0054) Programmable Gain Element Using AD5450/1/2/3 Current Output DAC Family (CN0055) Single Supply Low Noise LED Current Source Driver Using a Current Output DAC in the Reverse Mode (CN0139)
• Settling Time: 110ns
• Number Of Bits: 12
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 55µW
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Resolution (bits): 12bit
• Sampling Rate: 2.7MSPS
• Input Channel Type: Serial
• Supply Voltage Range - Analogue: 2.5V To 5.5V
• Supply Current: 400nA
• Digital Ic Case: RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD5450/AD5451/AD5452
where:
D is the fractional representation of the digital word loaded to
the DAC.
D
n is the resolution of the DAC.
When V
multiplication. Table 6 shows the relationship between the
digital code and the expected output voltage for a bipolar
operation using the 8-bit AD5450.
Table 6. Bipolar Code Table for AD5450
Digital Input
1111 1111
1000 0000
0000 0001
0000 0000
= 0 to 255 (8-bit AD5450)
= 0 to 1023 (10-bit AD5451)
= 0 to 4095 (12-bit AD5452)
V
OUT
IN
is an ac signal, the circuit performs 4-quadrant
=
⎛
⎜
⎝
V
REF
×
2
D
n
−1
±
V
NOTES
1. R1 AND R2 USED ONLY IF GAIN ADJUSTMENT IS REQUIRED.
2. MATCHING AND TRACKING IS ESSENTIAL FOR RESISTOR PAIRS
3. C1 PHASE COMPENSATION (1pF TO 2pF) MAY BE REQUIRED
10V
REF
⎞
⎟
⎠
ADJUST R1 FOR V
R3 AND R4.
IF A1/A2 IS A HIGH SPEED AMPLIFIER.
−
V
Analog Output (V)
+V
0
−V
−V
REF
REF
REF
REF
R1
(127/128)
(127/128)
(128/128)
V
SYNC
REF
OUT
V
V
µ
DD
DD
CONTROLLER
= 0V WITH CODE 10000000 LOADED TO DAC.
SCLK SDIN
AD5450/
AD5451/
AD5452
Figure 41. Bipolar Operation (4-Quadrant Multiplication)
R
FB
I
OUT
GND
20kΩ
R3
R2
Rev. 0 | Page 16 of 28
1
AGND
C1
A1
10kΩ
R4
20kΩ
A2
R5
V
OUT
= –V
REF
TO +V
REF