AD7946 Analog Devices, AD7946 Datasheet - Page 4

• Manufacturer Part Number: AD7946
• Manufacturer: Analog Devices

Specifications of AD7946

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 500kSPS
• Interface: Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: (Vref) p-p
• Adc Architecture: SAR
• Pkg Type: CSP,SOP

AD7946
VDD = 4.5 V to 5.5 V, VIO = 2.3 V to VDD, REF = VDD, T
Table 3.
Parameter
REFERENCE
SAMPLING DYNAMICS
DIGITAL INPUTS
DIGITAL OUTPUTS
POWER SUPPLIES
TEMPERATURE RANGE
1
2
3
With all digital inputs forced to VIO or GND as required.
During acquisition phase.
Contact sales for extended the temperature range.
Voltage Range
Load Current
−3 dB Input Bandwidth
Aperture Delay
Logic Levels
Data Format
Pipeline Delay
V
V
VDD
VIO
VIO Range
Standby Current
Power Dissipation
Specified Performance
OL
OH
V
V
I
I
IL
IH
IL
IH
1, 2
3
Conditions
500 kSPS, REF = 5 V
VDD = 5 V
I
I
Specified performance
Specified performance
VDD and VIO = 5 V, 25°C
VDD = 5 V, 100 SPS throughput
VDD = 5 V, 100 kSPS throughput
VDD = 5 V, 500 kSPS throughput
T
SINK
SOURCE
MIN
= +500 μA
to T
= −500 μA
MAX
A
Rev. A | Page 4 of 24
= −40°C to +85°C, unless otherwise noted.
Min
0.5
−0.3
0.7 × VIO
−1
−1
VIO − 0.3
1.8
−40
4.5
2.3
Conversion results available immediately
Serial 14-bits straight binary
after completed conversion
Typ
100
9
2.5
1
3.3
3.3
Max
VDD + 0.3
0.3 × VIO
VIO + 0.3
+1
+1
0.4
5.5
VDD + 0.3
VDD + 0.3
50
3.8
19
+85
Unit
V
μA
MHz
ns
V
V
μA
μA
V
V
V
V
V
nA
μW
mW
mW
°C