AD7302BRZ Analog Devices Inc, AD7302BRZ Datasheet - Page 7
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AD7302BRZ
Manufacturer Part Number
AD7302BRZ
Description
IC DAC 8BIT DUAL R-R 20-SOIC
Manufacturer
Analog Devices Inc
Datasheet
1.AD7302BRUZ.pdf
(16 pages)
Specifications of AD7302BRZ
Data Interface
Parallel
Settling Time
1.2µs
Number Of Bits
8
Number Of Converters
2
Voltage Supply Source
Single Supply
Power Dissipation (max)
24.8mW
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Resolution (bits)
8bit
Sampling Rate
833kSPS
Input Channel Type
Parallel
Supply Voltage Range - Analog
2.7V To 5.5V
Supply Current
2.8mA
Digital Ic Case Style
SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AD7302BRZ
Manufacturer:
Maxim
Quantity:
25
Part Number:
AD7302BRZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD7302BRZ-REEL
Manufacturer:
ADI/亚德诺
Quantity:
20 000
REV. 0
Figure 2. Output Sink Current Capa-
bility with V
Figure 5. Relative Accuracy vs.
External Reference
Figure 8. Large Scale Signal
Frequency Response
–10
–15
–20
–25
–30
–35
–40
0.45
0.35
0.25
0.15
0.05
10
–5
800
720
640
560
480
400
320
240
160
0.5
0.4
0.3
0.2
0.1
5
0
80
0
0
1
1.0 1.2
0
V
EXTERNAL SINEWAVE REFERENCE
DAC REGISTER LOADED WITH FFHEX
T
DD
A
V
T
V
INTERNAL REFERENCE
T
DAC LOADED WITH 00HEX
DD
A
= +25 C
A
DD
= +25 C
= 5V
DNL ERROR
= +25 C
REFERENCE VOLTAGE – Volts
= 5V
= 5V AND 3V
DD
1.4 1.6 1.8
INL ERROR
10
2
FREQUENCY – Hz
SINK CURRENT – mA
= 3 V and V
100
4
2.0
2.2 2.4 2.6
DD
1k
6
= 5 V
10k
2.8
8
Figure 6. Typical Supply Current
vs. Temperature
Figure 9. Full-Scale Settling Time
Figure 3. Output Source Current
Capability with V
1
2
3
4.92
4.84
4.76
4.68
4.52
4.44
4.36
4.28
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
4.6
4.2
0
–50
5
WR
0
INTERNAL REFERENCE
LOGIC INPUTS = V
BOTH DACS ACTIVE
V
INTERNAL REFERENCE
DAC REGISTER LOADED
T
Typical Performance Characteristics–AD7302
V
WITH FFHEX
DD
A
–25
OUT
CH1 5V, CH2 1V, CH3 20mV
= +25 C
= 5V
TIME BASE = 200 ns/Div
T
SOURCE CURRENT – mA
TEMPERATURE – C
2
0
V
DD
–7–
25
= 3.3V
DD
V
INTERNAL VOLTAGE
FULL SCALE CODE
T
V
DD
V
DD
REFERENCE
CHANGE 00H-FFH
A
DD
4
OUT
= +25 C
= 5 V
50
OR GND
= 5.5V
= 3V
75
6
100
125
8
Figure 10. Exiting Power-Down (Full
Power-Down)
Figure 7. Typical Supply Current
vs. Supply Voltage
Figure 4. Output Source Current
Capability with V
2
1
3.25
2.75
2.25
1.75
1.25
7.0
6.0
5.0
4.0
3.0
2.0
1.0
3.5
3.0
2.5
2.0
1.5
1.0
2.5
AD7302 POWER-UP TIME
V
INTERNAL REFERENCE
DAC IN POWER-DOWN INITIALLY
V
0
DD
OUT
BOTH DACS ACTIVE
INTERNAL REFERENCE USED
LOGIC INPUTS = V
T
PD
= 5V
A
V
INTERNAL REFERENCE
DAC REGISTER LOADED
T
LOGIC INPUTS = V
CH1 = 2V/div, CH2 = 5V/Div,
WITH FFHex
A
DD
= +25 C
1
3.0
= +25 C
TIME BASE = 2 µs/Div
= 3V
SOURCE CURRENT – mA
2
3.5
V
3
DD
DD
4.0
– Volts
IH
4
OR V
DD
= 3 V
OR GND
5
4.5
IL
6
5.0
7
5.5
8