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AD7933 Datasheet(PDF) 6 Page - Analog Devices

Part # AD7933
Description  4-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD7933 Datasheet(HTML) 6 Page - Analog Devices

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AD7933/AD7934
Preliminary Technical Data
Parameter
B Version1
Unit
Test Conditions/Comments
VREF Output Impedance
10
Ω typ
VREF Input Capacitance
15
pF typ
When in track-and-hold
25
pF typ
When in track-and-hold
LOGIC INPUTS
Input High Voltage, VINH
2.4
V min
Input Low Voltage, VINL
0.8
V max
Input Current, IIN
±1
µA max
Typically 10 nA, VIN = 0 V or VDRIVE
Input Capacitance, CIN5
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
±10
µA max
Floating-State Output Capacitance5
10
pF max
Output Coding
CODING bit = 0
Straight (Natural) Binary
Twos Complement
CODING bit = 1
CONVERSION RATE
Conversion Time
t2 + 13 tclk + t20
ns
Track-and-Hold Acquisition Time
135
ns max
Full scale step 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
IDD7
Digital I/Ps = 0 V or VDRIVE
Normal Mode(Static)
0.5
mA typ
VDD = 2.7 V to 5.25 V, SCLK on or off
Normal Mode (Operational)
3.2
mA max
VDD = 4.75 V to 5.25 V
2.6
mA max
VDD = 2.7 V to 3.6 V
Auto StandBy Mode
1.55
mA typ
FSAMPLE = 250 kSPS
90
µA max
(Static)
Auto Shutdown Mode
1
mA typ
FSAMPLE = 250 kSPS
1
µA max
(Static)
Full Shutdown Mode
1
µA max
SCLK on or off
Power Dissipation
Normal Mode (Operational)
16
mW max
VDD = 5 V
8
mW max
VDD = 3 V
Auto Standby Mode (Static)
450
µW max
VDD = 5 V
270
µW max
VDD = 3 V
Auto Shutdown Mode (Static)
5
µW max
VDD = 5 V
3
µW max
VDD = 3 V
Full Shutdown Mode
5
µW max
VDD = 5 V
3
µW max
VDD = 3 V
1 Temperature ranges is as follows: B Versions: −40°C to +85°C.
2 See Terminology section.
3 Analog inputs with slew rates exceeding 27 V/µs (full-scale input sine wave > 3.5 MHz) within the acquisition time may cause an incorrect result to be returned by the
converter.
4 For full common mode range see
5 Sample tested during initial release to ensure compliance.
6 This device is operational with an external reference in the range 0.1 V to 3.5 V in differential mode and 0.1 V to VDD in pseudo-differential and single-ended modes.
See the Reference Section for more information.
7 Measured with a midscale dc input.
Rev. PrG | Page 6 of 32


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