AD7949(RevA) View Datasheet(PDF) - Analog Devices
Part Name
Description
View to exact match
AD7949 Datasheet PDF : 28 Pages
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AD7949
Parameter
POWER SUPPLIES
VDD
VIO
Standby Current11, 12
Power Dissipation
Energy per Conversion
TEMPERATURE RANGE13
Specified Performance
Conditions/Comments
Min
Specified performance
2.3
Specified performance
2.3
Operating range
1.8
VDD and VIO = 5 V, @ 25°C
VDD = 2.5 V, 100 SPS throughput
VDD = 2.5V, 100 kSPS throughput
VDD = 2.5 V, 200 kSPS throughput
VDD = 5 V , 250 kSPS throughput
VDD = 5 V, 250 kSPS throughput with internal
reference
TMIN to TMAX
−40
Typ
Max
Unit
5.5
V
VDD + 0.3 V
VDD + 0.3 V
50
nA
1.5
μW
1.45
2.0
mW
2.9
4.0
mW
10.8
12.5
mW
13.5
15.5
mW
50
nJ
+85
°C
1 See the Analog Inputs section.
2 The bandwidth is set with the configuration register
3 LSB means least significant bit. With the 5 V input range, one LSB = 305 μV.
4 See the Terminology section. These specifications include full temperature range variation but not the error contribution from the external reference.
5 With VDD = 5 V, unless otherwise noted.
6 All specifications expressed in decibels are referred to a full-scale input FSR and tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
7 This is the output from the internal band gap.
8 The output voltage is internal and present on a dedicated multiplexer input.
9 Unipolar mode: serial 14-bit straight binary.
Bipolar mode: serial 14-bit twos complement.
10 Conversion results available immediately after completed conversion.
11 With all digital inputs forced to VIO or GND as required.
12 During acquisition phase.
13 Contact an Analog Devices, Inc., sales representative for the extended temperature range.
Rev. A | Page 5 of 28
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