AD7942 Analog Devices, AD7942 Datasheet - Page 4

• Manufacturer Part Number: AD7942
• Manufacturer: Analog Devices

Specifications of AD7942

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 250kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p,Uni (Vref)
• Adc Architecture: SAR
• Pkg Type: CSP,SOP

AD7942
Parameter
DIGITAL OUTPUTS
POWER SUPPLIES
TEMPERATURE RANGE
1
2
3
4
5
6
LSB means least significant bit. With a 5 V input range, 1 LSB = 305.2 μV.
See the Terminology section. These specifications do include full temperature range variation but do not include the error contribution from the external reference.
All specifications in decibels are referred to a full-scale input, FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
With all digital inputs forced to VIO or GND as required.
During acquisition phase.
Contact Analog Devices, Inc., sales for an extended temperature range.
Data Format
Pipeline Delay
V
V
VDD
VIO
VIO Range
Standby Current
Power Dissipation
Specified Performance
OL
OH
4, 5
6
Conditions
I
I
Specified performance
Specified performance
VDD and VIO = 5 V, @ 25°C
VDD = 2.5 V, 100 SPS throughput
VDD = 2.5 V, 100 kSPS throughput
VDD = 2.5 V, 200 kSPS throughput
VDD = 5 V, 100 kSPS throughput
VDD = 5 V, 250 kSPS throughput
T
SINK
SOURCE
MIN
= +500 μA
to T
= −500 μA
MAX
Rev. B | Page 4 of 24
Min
VIO − 0.3
2.3
2.3
1.8
−40
Serial 14 bits straight binary
Conversion results available
completed conversion
immediately after
Typ
1
1.25
1.25
2.5
3.6
Max
0.4
5.5
VDD + 0.3
VDD + 0.3
50
2
4
5
12.5
+85
Unit
V
V
V
V
V
nA
μW
mW
mW
mW
mW
°C