AD7801BR-REEL7 Analog Devices Inc, AD7801BR-REEL7 Datasheet - Page 5

• Manufacturer Part Number: AD7801BR-REEL7
• Manufacturer: Analog Devices Inc

Specifications of AD7801BR-REEL7

• Number Of Channels: 1
• Resolution: 8b
• Conversion Rate: 833KSPS
• Interface Type: Parallel
• Single Supply Voltage (typ): 3.3/5V
• Dual Supply Voltage (typ): Not RequiredV
• Settling Time: 2us
• Architecture: Current Steering
• Power Supply Requirement: Single
• Output Type: Voltage
• Integral Nonlinearity Error: ±1LSB
• Single Supply Voltage (min): 2.7V
• Single Supply Voltage (max): 5.5V
• Dual Supply Voltage (min): Not RequiredV
• Dual Supply Voltage (max): Not RequiredV
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 20
• Package Type: SOIC W
• Lead Free Status / Rohs Status: Not Compliant

Figure 2. Output Sink Current Capa-
bility with V
REV. 0
0.45
0.35
0.25
0.15
0.05
Figure 5. Relative Accuracy vs.
External Reference
–10
–15
–20
–25
–30
–35
–40
0.5
0.4
0.3
0.2
0.1
Figure 8. Large Scale Signal
Frequency Response
10
–5
800
720
640
560
480
400
320
240
160
0
5
0
80
1.0 1.2
0
1
0
V
EXTERNAL SINEWAVE REFERENCE
DAC REGISTER LOADED WITH FFHEX
T
V
T
A
DD
DD
A
V
INTERNAL REFERENCE
T
DAC LOADED WITH 00HEX
= +25 C
A
= +25 C
DD
DNL ERROR
REFERENCE VOLTAGE – Volts
= 5V
= 5V
= +25 C
DD
1.4 1.6 1.8
INL ERROR
= 5V AND 3V
10
2
= 3 V and V
FREQUENCY – Hz
SINK CURRENT – mA
100
4
2.0
2.2 2.4 2.6
DD
1k
6
= 5 V
2.8
10k
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
2.5
2.0
1.5
1.0
0.5
4.0
3.5
3.0
4.6
4.2
0
–50
5
WR
0
V
INTERNAL REFERENCE
DAC REGISTER LOADED
T
Typical Performance Characteristics–
WITH FFHEX
A
DD
–25
V
OUT
CH1 5V, CH2 1V, CH3 20mV
= +25 C
= 5V
TIME BASE = 200 ns/Div
SOURCE CURRENT – mA
T
TEMPERATURE – C
2
INTERNAL REFERENCE
LOGIC INPUTS = V
DAC ACTIVE
0
V
–5–
V
DD
25
DD
DD
= 3.3V
= 5.5V
V
INTERNAL VOLTAGE
FULL SCALE CODE
T
4
REFERENCE
CHANGE 00H-FFH
A
V
DD
= 5 V
50
OUT
= +25 C
= 3V
75
DD
6
OR GND
100
125
8
Figure 10. Exiting Power-Down (Full
Power-Down)
Figure 7. Typical Supply Current
vs. Supply Voltage
2
1
Figure 4. Output Source Current
Capability with V
3.25
2.75
2.25
1.75
1.25
4.0
3.0
2.0
1.0
3.5
3.0
2.5
2.0
1.5
1.0
0
2.5
AD7801 POWER-UP TIME
V
INTERNAL REFERENCE
DAC IN POWER-DOWN INITIALLY
V
DD
OUT
0
LOGIC INPUTS = V
DAC ACTIVE
INTERNAL REFERENCE
T
PD
= 5V
A
V
INTERNAL REFERENCE
DAC REGISTER LOADED
T
CH1 = 2V/div, CH2 = 5V/Div,
WITH FFHex
DD
A
= +25 C
3.0
1
= +25 C
TIME BASE = 2 s/Div
= 3V
SOURCE CURRENT – mA
2
LOGIC INPUTS = V
3.5
V
3
DD
IH
4.0
DD
– Volts
4
OR V
AD7801
= 3 V
4.5
5
IL
DD
6
OR GND
5.0
7
5.5
8