4-1
August 1997
HI1276
8-Bit, 500 MSPS, Flash A/D Converter
Features
Differential Linearity Error . . . . . . . . . . . . . . .
0.5 LSB
Integral Linearity Error . . . . . . . . . . . . . . . . . .
0.7 LSB
Built-In Integral Linearity Compensation Circuit
Ultra High Speed Operation with Maximum
Conversion Rate (Min) . . . . . . . . . . . . . . . . . . 500 MSPS
Low Input Capacitance (Typ) . . . . . . . . . . . . . . . . . 20pF
Wide Analog Input Bandwidth
(Min for Full Scale Input) . . . . . . . . . . . . . . . . . . 300MHz
Single Power Supply . . . . . . . . . . . . . . . . . . . . . . . -5.2V
Low Power Consumption (Typ) . . . . . . . . . . . . . . . 2.8W
Low Error Rate
Capable of Driving 50
Loads
Direct Replacement for Sony CXA1276K
Applications
Radar Systems
Communication Systems
Digital Oscilloscopes
Direct RF Down-Conversion
Description
The HI1276 is an 8-bit, ultra-high-speed, flash Analog-to-
Digital converter IC capable of digitizing analog signals at a
maximum rate of 500 MSPS. The digital I/O levels of this A/D
converter are compatible with ECL 100K/10KH/10K.
The HI1276 is available in the Industrial temperature range
and is supplied in a 68 lead ceramic LCC package.
Pinout
HI1276 (CLCC)
HEAT SINK UP, RECESSED CAVITY DOWN
Ordering Information
PART
NUMBER
TEMP. RANGE
(
o
C)
PACKAGE
PKG. NO.
HI1276AIL
-20 to 100
68 Ld CLCC
J68.B
HI1276-EV
25
Evaluation Board
DV
EE
D1
D1
D0
D0
OR
OR
LINV
AV
EE
AV
EE
NC
V
RT
S
V
RT
AV
EE
AV
EE
DGND2
D2
D2
DV
EE
D3
D3
DGND2
DGND2
DGND1
DGND1
D4
D4
DV
EE
D5
D5
NC
DGND2
NC
NC
AV
EE
NC
AGND
V
IN1
V
IN1
AGND
V
RM
AGND
V
IN2
V
IN2
AGND
NC
NC
NC
NC
A
GND
DGND1
9
8
7
6
5
4
3
2
1
68 67 66 65 64 63 62 61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
DGND1
DV
EE
D6
D6
D7
D7
MINV
CLK
CLK
AV
EE
AV
EE
NC
V
RBS
V
RB
AV
EE
AV
EE
A
GND
File Number
3578.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
Intersil Corporation 1999
4-3
Absolute Maximum Ratings
T
A
= 25
o
C
Thermal Information
Supply Voltage (AV
EE
, DV
EE
) . . . . . . . . . . . . . . . . . . . -7V to +0.5V
Analog Input Voltage (V
IN
) . . . . . . . . . . . . . . . . . . . . . . -2.7 to +0.5V
Reference Input Voltage
V
RT
, V
RB
, V
RM
. . . . . . . . . . . . . . . . . . . . . . . . . . . AV
EE
to +0.5V
|V
RT
- V
RB
| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5V
Digital Input Voltage
MINV, LINV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4V to +0.5V
CLK, CLK, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DV
EE
to +0.5V
|CLK-CLK | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7V
V
RM
Pin Input Current (I
VRM
) . . . . . . . . . . . . . . . . . . -3mA to +3mA
Digital Output Current
(ID0 to ID7, IOR, ID0 to ID7, IOR) . . . . . . . . . . . . . -30mA to 0mA
Thermal Resistance (Typical)
JA
o
C/W
JC
o
C/W
CLCC Package . . . . . . . . . . . . . . . . . .
18
4
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 175
o
C
Maximum Storage Temperature Range (T
STG
) . . . .-65
o
C to 150
o
C
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300
o
C
Operating Conditions
(Note 1)
Supply Voltage
MIN
TYP
MAX
AV
EE
, DV
EE
. . . . . . . . . . . . . . . . . . . . . . . -5.5V
-5.2V
-4.95V
AV
EE
- DV
EE
. . . . . . . . . . . . . . . . . . . . . . .-0.05V
0V
0.05V
AGND - DGND . . . . . . . . . . . . . . . . . . . . .-0.05V
0V
0.05V
Temperature Range (Note 5)
T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20
o
C
-
100
o
C
Reference Input Voltage
MIN
TYP
MAX
V
RT
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.1V
-2
0.1V
V
RB
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . -2.2V
-2
-1.8V
Analog Input Voltage, V
IN
. . . . . . . . . . . . . .
V
RB
-
V
RT
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Electrical Specifications
T
A
= 25
o
C, AV
EE
= DV
EE
= -5.2V, V
RT
, V
RTS
= 0V, V
RB
, V
RBS
= -2V (Note 1)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM PERFORMANCE
Resolution
-
8
-
Bits
Integral Linearity Error, INL
f
C
= 500 MSPS
-
0.3
0.7
LSB
Differential Linearity Error, DNL
f
C
= 500 MSPS
-
0.3
0.5
LSB
DYNAMIC CHARACTERISTICS
Signal to Noise and Distortion Ratio, SINAD
Input = 1kHz, Full Scale
f
C
= 500 MSPS
-
46
-
dB
Input = 100MHz, Full Scale
f
C
= 500 MSPS
-
37
-
dB
Error Rate
Input = 100MHz, Full Scale
Error > 16 LSB, f
C
= 400 MSPS
-
10
-11
10
-9
TPS
(Note 3)
Input = 125MHz, Full Scale
Error > 16 LSB, f
C
= 500 MSPS
-
10
-8
10
-6
TPS
(Note 3)
Differential Gain Error, DG
NTSC 40 IRE Mod.
Ramp, f
C
= 500 MSPS
-
1.0
-
%
Differential Phase Error, DP
-
0.5
-
Degree
Overrange Recovery Time
-
1.0
-
ns
Maximum Conversion Rate, f
C
500
-
-
MSPS
Aperture Jitter, t
AJ
Input = 150MHz
-
11
-
ps
Sampling Delay, t
DS
Input = 150MHz
0.2
0.8
1.5
ns
ANALOG INPUT
Analog Input Capacitance, C
IN
V
IN
= 1V + 0.07V
RMS
-
20
-
pF
Analog Input Resistance, R
IN
30
70
-
k
Input Bias Current, I
IN
V
IN
= -1V
-
-
850
A
Full Scale Input Bandwidth
V
IN
= 2V
P-P
300
-
-
MSPS
REFERENCE INPUTS
Reference Resistance, R
REF
70
110
160
RMS Signal
RMS Noise
Distor tion
+
------------------------------------------------------------------
=
HI1276
4-4
Residual Resistance
R1
Note 2
0.1
0.5
2.0
R2
0.5
5.2
10
R3
0.5
1.6
5.0
R4
0.5
8.7
20
R5
0.1
0.5
2.0
DIGITAL INPUTS
Logic H Level, V
IH
-1.10
-
-
V
Logic L Level, V
IL
-
-
-1.55
V
Logic H Current, I
IH
Input Connected to -0.8V
0
-
70
A
Logic L Current, I
IL
Input Connected to -1.6V
-50
-
60
A
Input Capacitance
-
6
-
pF
DIGITAL OUTPUTS
Logic H Level, V
OH
R
L
= 50
-1.03
-
-
V
Logic L Level, V
OL
R
L
= 50
-
-
-1.58
V
TIMING CHARACTERISTICS
Clock Duty Cycle
45
50
55
%
Output Rise Time, t
r
R
L
= 50
, 20% to 80%
0.5
0.7
1.0
ns
Output Fall Time, t
f
R
L
= 50
, 80% to 20%
0.5
0.7
1.0
ns
Output Delay, t
OD
1.5
1.9
2.3
ns
POWER SUPPLY CHARACTERISTICS
Supply Current, I
EE
-680
-520
-
mA
Power Consumption, P
D
Note 4
-
2.8
3.6
W
NOTES:
1. Electrical Specifications guaranteed within stated operating conditions.
2. See Functional Block Diagram.
3. TPS: Times Per Sample.
4.
.
5. T
A
is specified in still air and without heatsink. To extend temperature range, appropriate heat management techniques must be employed
(See Figure 2).
Timing Diagram
FIGURE 1.
Electrical Specifications
T
A
= 25
o
C, AV
EE
= DV
EE
= -5.2V, V
RT
, V
RTS
= 0V, V
RB
, V
RBS
= -2V (Note 1) (Continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
P
D
I
EEA
AV
EE
I
EED
DV
EE
+
V
RT
V
RB
(
)
2
R
REF
-------------------------------------
+
=
N + 1
N + 2
N + 1
N
N - 1
20%
80%
t
r
t
OD
t
f
t
PW1
t
PW0
80%
20%
ANALOG IN
CLK
CLK
DIGITAL OUT
t
DS
HI1276
4-5
Typical Performance Curves
FIGURE 2. THERMAL RESISTANCE MOUNTED ON-BOARD
FIGURE 3. SUPPLY CURRENT vs TEMPERATURE
CHARACTERISTICS
FIGURE 4. DO PIN HIGH LEVEL VOLTAGE vs TEMPERATURE
CHARACTERISTICS
FIGURE 5. REGISTER STRING CURRENT vs TEMPERATURE
CHARACTERISTICS
FIGURE 6. D0 PIN LEVEL VOLTAGE vs TEMPERATURE
CHARACTERISTICS
FIGURE 7. CLK PIN OPEN VOLTAGE vs TEMPERATURE
CHARACTERISTICS
AIR FLOW (m/s)
1
2
3
0
10
THERMAL RESIST
ANCE
JA
(
o
C/W)
20
0
CASE TEMPERATURE (
o
C)
0
50
100
-0.55
-50
150
-0.45
SUPPL
Y CURRENT (A)
-0.47
-0.49
-0.51
-0.53
CASE TEMPERATURE (
o
C)
-0.80
HIGH LEVEL V
O
L
T
A
GE (V)
0
50
100
-50
150
-0.85
-09.0
-0.95
-1.00
-1.05
-1.10
-14
REGISTER STRING CURRENT (mA)
-16
-18
-20
-22
-24
CASE TEMPERATURE (
o
C)
0
50
100
-50
150
CASE TEMPERATURE (
o
C)
0
50
100
-1.85
-50
150
-1.65
-1.60
-1.55
LO
W LEVEL V
O
L
T
A
GE (V)
-1.70
-1.75
-1.80
CASE TEMPERATURE (
o
C)
0
50
100
-50
150
-1.40
-1.38
-1.36
CLK PIN OPEN V
O
L
T
A
GE (V)
-1.30
-1.32
-1.34
HI1276
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