AD7933/AD7934
Rev. B | Page 4 of 32
Parameter
Unit
Test Conditions/Comments
REFERENCE INPUT/OUTPUT
2.5
V
±1% specified performance
±1
μA max
VREFOUT Output Voltage
2.5
V
±0.2% max @ 25°C
VREFOUT Temperature Coefficient
25
ppm/°C max
5
ppm/°C typ
VREF Noise
10
μV typ
0.1 Hz to 10 Hz bandwidth
130
μV typ
0.1 Hz to 1 MHz bandwidth
VREF Output Impedance
10
Ω typ
VREF Input Capacitance
15
pF typ
When in track
25
pF typ
When in hold
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.8
V max
Input Current, IIN
±5
μA max
Typically 10 nA, VIN = 0 V or VDRIVE
10
pF max
LOGIC OUTPUTS
Output High Voltage, VOH
2.4
V min
ISOURCE = 200 μA
Output Low Voltage, VOL
0.4
V max
ISINK = 200 μA
Floating-State Leakage Current
±3
μA max
10
pF max
Output Coding
Straight (natural) binary
CODING bit = 0
Twos complement
CODING bit = 1
CONVERSION RATE
Conversion Time
t2 + 13 tCLK
ns
Track-and-Hold Acquisition Time
125
ns max
Full-scale step input
80
ns typ
Sine wave input
Throughput Rate
1.5
MSPS max
POWER REQUIREMENTS
VDD
2.7/5.25
V min/max
VDRIVE
2.7/5.25
V min/max
Digital inputs = 0 V or VDRIVE
Normal Mode (Static)
0.8
mA typ
VDD = 2.7 V to 5.25 V, SCLK on or off
Normal Mode (Operational)
2.7
mA max
VDD = 4.75 V to 5.25 V
2.0
mA max
VDD = 2.7 V to 3.6 V
Autostandby Mode
0.3
mA typ
FSAMPLE = 100 kSPS, VDD = 5 V
160
μA typ
Static
Full/Autoshutdown Mode (Static)
2
μA max
SCLK on or off
Power Dissipation
Normal Mode (Operational)
13.5
mW max
VDD = 5 V
6
mW max
VDD = 3 V
Autostandby Mode (Static)
800
μW typ
VDD = 5 V
480
μW typ
VDD = 3 V
Full/Autoshutdown Mode
10
μW max
VDD = 5 V
6
μW max
VDD = 3 V
1 Temperature range is 40°C to +85°C.
3 VCM is the common-mode voltage. For full common-mode range, see Figure 25 and Figure 26. VIN+ and VIN must always remain within GND/VDD. 4 Sample tested during initial release to ensure compliance.
5 This device is operational with an external reference in the range of 0.1 V to VDD. See the Reference section for more information. 6 Measured with a midscale dc analog input.