AD7294 Analog Devices, AD7294 Datasheet - Page 4

• Manufacturer Part Number: AD7294
• Description: 12-Bit Monitor and Control System with Multichannel ADC, DACs, Temperature Sensor, and Current Sense
• Manufacturer: Analog Devices

Specifications of AD7294

• Resolution (bits): 12bit
• # Chan: 9
• Sample Rate: 200kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: Diff-Uni,SE-Uni
• Ain Range: (Vref) p-p,2 V p-p,Uni (Vref),Uni (Vref) x 2
• Adc Architecture: SAR
• Pkg Type: CSP

AD7294
FUNCTIONAL BLOCK DIAGRAM
T1
OVERRANGE
OVERRANGE
T2
I
I
SENSE
SENSE
V
V
V
V
D1+
D2+
D2–
D1–
IN
IN
IN
IN
0
1
2
3
2
1
V
PP
(1 TO 2)
AD7294
DV
DD
10.41
V
REF
RS1(+)
(1 TO 2)
DGND
HIGH SIDE
CURRENT
SENSE
RS1(–)
RS2(+)
SDA
CONTROL LOGIC
I
2
SCL
HIGH SIDE
CURRENT
C INTERFACE
PROTOCOL
SENSE
R
Rev. H | Page 4 of 48
SENSE
AS2
MUX
Figure 1.
RS2(–)
AS1
AS0
REF
REF
SENSOR
REGISTERS
TEMP
DCAP
12-BIT
IN
ADC
LIMIT
OUT
ADC
TO LOAD
/
ALERT/
2.5V
REF
BUSY
REF
REF
IN
OUT
DAC
12-BIT
12-BIT
12-BIT
12-BIT
/
DAC
DAC
DAC
DAC
100kΩ
100kΩ
100kΩ
100kΩ
(1 TO 6)
AV
DD
100kΩ
100kΩ
100kΩ
100kΩ
200kΩ
200kΩ
200kΩ
200kΩ
(1 TO 7)
AGND
200kΩ
200kΩ
200kΩ
200kΩ
DAC OUT
V+ AB/CD
OFFSET IN A
OFFSET IN B
OFFSET IN C
OFFSET IN D
V
V
V
V
OUT
OUT
OUT
OUT
A
B
C
D
Data Sheet