AD7671
Parameter
POWER SUPPLIES
Specified Performance
AVDD
DVDD
OVDD
Operating Current
5
AVDD
DVDD
6
OVDD
6
Power Dissipation
6, 7
9
Conditions
Min
Typ
Max
Unit
4.75
4.75
2.7
1 MSPS Throughput
5
5
5.25
5.25
5.25
4
V
V
V
mA
mA
mA
mW
mW
mW
mW
∞C
666 kSPS Throughput
8
100 SPS Throughput
8
1 MSPS Throughput
5
15
7.2
37
84
15
112
95
125
7
+85
In Power-Down Mode
TEMPERATURE RANGE
10
Specified Performance
T
MIN
to T
MAX
–40
NOTES
1
LSB means least significant bit. With the
±
5 V input range, one LSB is 152.588
mV.
2
See Definition of Specifications section. These specifications do not include the error contribution from the external reference.
3
All specifications in dB are referred to a full-scale input FS. Tested with an input signal at 0.5 dB below full scale, unless otherwise specified.
4
The max should be the minimum of 5.25 V and DVDD + 0.3 V.
5
In Warp Mode.
6
Tested in Parallel Reading Mode.
7
Tested with the 0 V to 5 V range and V
IN
– V
INGND
= 0 V. See Power Dissipation section.
8
In Impulse Mode.
9
With OVDD below DVDD + 0.3 V and all digital inputs forced to DVDD or DGND, respectively.
10
Contact factory for extended temperature range.
Specifications subject to change without notice.
Table I. Analog Input Configuration
Input Voltage
Range
±
4 REF
2
±
2 REF
±
REF
0 V to 4 REF
0 V to 2 REF
0 V to REF
IND(4R)
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
INC(4R)
INGND
V
IN
V
IN
V
IN
V
IN
V
IN
INB(2R)
INGND
INGND
V
IN
INGND
V
IN
V
IN
INA(R)
REF
REF
REF
INGND
INGND
V
IN
Input
Impedance
1
1.63 kW
948
W
711
W
948
W
711
W
Note 3
NOTES
1
Typical analog input impedance.
2
With REF = 3 V, in this range, the input should be limited to –11 V to +12 V.
3
For this range the input is high impedance.
TIMING SPECIFICATIONS
Parameter
(–40 C to +85 C, AVDD = DVDD = 5 V, OVDD = 2.7 V to 5.25 V, unless otherwise noted.)
Symbol
t
1
t
2
t
3
t
4
t
5
t
6
t
7
t
8
t
9
2
10
0.75/1/1.25
250
10
Min
5
1/1.25/1.5
Typ
Max
Unit
ns
ms
ns
ms
ns
ns
ms
ns
ns
Refer to Figures 11 and 12
Convert Pulsewidth
Time between Conversions
(Warp Mode/Normal Mode/Impulse Mode)
CNVST
LOW to BUSY HIGH Delay
BUSY HIGH All Modes Except in Master Serial Read after
Convert Mode (Warp Mode/Normal Mode/Impulse Mode)
Aperture Delay
End of Conversion to BUSY LOW Delay
Conversion Time (Warp Mode/Normal Mode/Impulse Mode)
Acquisition Time
RESET Pulsewidth
REV. C
Note 1
30
0.75/1/1.25
–3–
AD [ ANALOG DEVICES ]
