
AD9026/AD9027–SPECIFICATIONS
DC SPECIFICATIONS
(+V
S
= +5 V, –V
S
= –5.2 V unless otherwise noted)
REV. 0
–2–
Test
Level
AD9026AD/BD
Min
Typ
AD9027AD/BD
Min
Typ
Parameter
Temp
Max
Max
Units
RESOLUTION
12
12
Bits
DC ACCURACY
No Missing Codes
Offset Error
Full
+25
°
C
Full
+25
°
C
Full
+25
°
C
VI
I
VI
I
VI
V
Guaranteed
Guaranteed
5
15
0.5
0.5
0.7
25
35
5.0
5.5
5
15
0.5
0.5
0.7
25
35
5.0
5.5
mV
mV
% FS
% FS
LSB rms
Gain Error
Thermal Noise
1
ANALOG INPUT
Input Voltage Range
Input Resistance
Input Capacitance
±
1.024
300
7
±
1.024
300
7
V
pF
Full
+25
°
C
IV
V
225
375
225
375
ENCODE INPUT
Logic Compatibility
Logic “1” Voltage
Logic “0” Voltage
Logic “1” Current
Logic “0” Current
Input Capacitance
TTL
ECL
Full
Full
Full
Full
+25
°
C
VI
VI
VI
VI
V
2
–1.1
V
V
μ
A
μ
A
pF
0.8
20
20
–1.5
10
10
7
7
4
3
3
4
DIGITAL OUTPUTS
2
Logic Compatibility
Logic “1” Voltage
Logic “0” Voltage
Output Coding
TTL
ECL
Full
Full
VI
VI
2.4
–1.1
V
V
0.5
–1.5
Offset Binary
Offset Binary
POWER SUPPLY
+V
S
Supply Voltage
+V
S
Supply Current
–V
S
Supply Voltage
–V
Supply Current
Power Dissipation
3
Power Supply
Rejection Ratio (PSRR)
4
Full
Full
Full
Full
Full
VI
VI
VI
I
VI
4.75
5.0
120
–5.2
205
1.65
5.25
142
–4.95
248
2.0
4.75
5.0
110
–5.2
215
1.65
5.25
130
–4.95
260
2.0
V
mA
V
mA
W
–5.45
–5.45
Full
VI
20
55
20
55
mV/V
NOTES
1
ANALOG INPUT is connected to ground.
2
AD9026AD/BD: outputs sourcing 1 mA when V
OH
is measured and sinking 2 mA when V
OL
is measured. AD9027 outputs are terminated with 2 k
resistors to –V
S
.
3
Does not include power dissipated in termination resistors.
4
+V
S
and –V
S
varied independently
±
5% from nominal; PSRR in specification table is either PSRR (+V
S
) or PSRR (–V
S
), whichever is worse.
Specifications subject to change without notice.
SWITCHING SPECIFICATIONS
(+V
S
= +5 V; –V
S
= –5.2 V; Encode = 25.6 MSPS for A Grade Parts; Encode = 31.0 MSPS for B Grade Parts unless otherwise noted)
Test
AD9026AD
AD9026BD
Parameter (Conditions)
Temp
Level
Min
Typ Max
Min
AD9027AD
Min
Typ
AD9027BD
Min
Typ
Typ
Max
Max
Max
Units
Maximum Conversion Rate
Minimum Conversion Rate
Aperture Delay (t
A
)
Aperture Uncertainty (Jitter)
ENCODE Pulse Width High
ENCODE Pulse Width Low
Output Delay (t
OD
)
Full
+25
°
C
+25
°
C
+25
°
C
+25
°
C
+25
°
C
Full
VI
V
V
V
IV
IV
IV
25.6
31
25.6
31
MSPS
MSPS
ns
ps rms
ns
ns
ns
4
3
2
4
3
2
4
3
2
4
3
2
14
14
13
14
14
13
14
14
10
14
14
10
23
23
18
18
Specifications subject to change without notice.