AD7294 Analog Devices, AD7294 Datasheet - Page 5

• 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

Data Sheet
SPECIFICATIONS
DAC SPECIFICATIONS
AV
otherwise noted. DAC OUTV+ AB and DAC OUTV+ CD = 4.5 V to 16.5 V, OFFSET IN x is floating, therefore, the DAC output
span = 0 V to 5 V.
Table 1.
Parameter
ACCURACY
DAC OUTPUT CHARACTERISTICS
REFERENCE
1
2
This value indicates that the DAC output amplifiers can output voltages 15.5 mV below the DAC OUTV+ supply. If higher DAC OUTV+ supply voltages are used, the
full-scale error of the DAC is typically 2 mV with no load.
Samples are tested during initial release to ensure compliance; they are not subject to production testing.
Full-Scale Error of DAC and
Offset Error Temperature
Resolution
Relative Accuracy (INL)
Differential Nonlinearity (DNL)
Zero-Scale Error
Full-Scale Error of DAC
Offset Error
Gain Error
Gain Temperature Coefficient
Output Voltage Span
Output Voltage Offset
Offset Input Pin Range
DC Input Impedance
Output Voltage Settling Time
Slew Rate
Short-Circuit Current
Load Current
Capacitive Load Stability
DC Output Impedance
Reference Output Voltage
Reference Input Voltage Range
Input Current
Input Capacitance
V
Reference Temperature
DD
REF
Output Amplifier
Coefficient
Coefficient
= DV
Output Impedance
DD
2
= 4.5 V to 5.5 V, AGND = DGND = 0 V, internal 2.5 V reference; V
2
2
2
2
2
2
2
2
Min
12
0
0
0
10
2.49
0
Typ
±1
±0.3
2.5
2
±5
±0.025
±5
75
8
1.1
40
±10
1
2.5
100
20
25
10
Max
±3
±1
8
15.5
±8.575
±2
±0.155
2 × V
10
5
2.51
AV
125
25
DD
1
Rev. H | Page 5 of 48
REF
− 2
Unit
Bits
LSB
LSB
mV
mV
mV
mV
mV
ppm/°C
% FSR
ppm/°C
V
V
kΩ
µs
V/µs
mA
mA
nF
Ω
V
V
µA
pF
Ω
ppm/°C
DRIVE
Test Conditions/Comments
Guaranteed monotonic
DAC OUTV+ = 5.0 V
DAC OUTV+ = 15.0 V
Measured in the linear region, T
Measured in the linear region, T
0 V to 5 V for a 2.5 V reference
The output voltage span can be positioned in the 0 V to
15 V range; if the OFFSET IN x is left floating, the offset
pin = 2/3 × V
V
100 kΩ to V
1/4 to 3/4 change within 1/2 LSB, measured from last
SCL edge
Full-scale current shorted to ground
Source and/or sink within 200 mV of supply
R
±0.4% maximum @ 25°C, AV
V
OUT
L
REF
= ∞
= 2.7 V to 5.5 V; T
= 2.5 V
= 3 V
OFFSET
REF
REF
, and 200 kΩ to AGND, see Figure 48
− 2 × V
, giving an output of 0 V to 2 × V
REF
A
=−40°C to +105°C, unless
+ V
DAC
DD
= DV
A
A
= −40°C to +105°C
= 25°C
DD
= 4.5 V to 5.5 V
AD7294
REF