19-0690; Rev 0; 1/07
Dual Driver/Comparator/Load
with Internal DACs
General Description
The MAX9973/MAX9974 fully integrated, high-perfor-
mance, dual-channel pin electronics driver/compara-
tor/load (DCL) with built-in level-setting digital-to-analog
converters (DACs) are ideally suited for memory and
SOC automatic test equipment (ATE) applications.
Each channel includes a three-level pin driver, a win-
dow comparator, dynamic clamps, a 1kΩ load, and
seven independent level-setting DACs.
The driver features a wide voltage range and high-speed
operation, includes high-impedance and active-termina-
tion (3rd-level drive) modes, and is highly linear even at
low voltage swings. Additionally, the driver provides high-
speed differential multiplexer control inputs, with internal
termination resistors that are compatible with ECL, LV-
PECL, LVDS, and GTL. The window comparators provide
extremely low timing variation over changes in slew rate,
pulse width, or overdrive voltage, and have open-collec-
tor outputs. When high-impedance mode is selected, the
dynamic clamps provide damping of high-speed device-
under-test (DUT) waveforms. The load facilitates fast con-
tact testing when used in conjunction with the
comparators, and functions as a pullup for
open-drain/collector DUT_ outputs. The MAX9973/
MAX9974 are configured through a serial interface.
The MAX9973/MAX9974 differ in two aspects: the posi-
tion of the exposed heat slug and the pin arrangement.
The MAX9973G/MAX9974G comparator outputs sink
8mA (typ), while the MAX9973H/MAX9974H compara-
tor outputs sink 16mA (typ). The devices are available
in a 64-pin (10mm x 10mm x 1.00mm) TQFP-EP pack-
age with an exposed paddle on top (MAX9973) or bot-
tom (MAX9974) for heat removal. Power dissipation is
only 700mW per channel. The full operating voltage
range is -1.5V to +6.5V. Operation is specified at an
internal die temperature of +40°C to +100°C, and fea-
tures a temperature monitor output.
o
600Mbps at 3V High Speed
o
700mW per Channel Extremely Low Power
Dissipation
o
-1.5V to +6.5V Wide Voltage Range
o
200mV to 8V Wide Voltage Swing Range
o
10nA (max) Low-Leakage Mode
o
Integrated Termination On-the-Fly
(3rd-Level Drive)
o
Integrated Voltage Clamps
o
Passive Load or Pullup
o
Very Low Timing Dispersion
o
Minimal External Component Count
o
SPI
TM
-Compatible Serial Control Interface
Features
MAX9973/MAX9974
Ordering Information
PART
PIN-PACKAGE
PKG
CODE
OUTPUT
SINK
CURRENT
MAX9973GC
CB
64 TQFP-EP-IDP**
(10mm x 10mm x C64E-13R
1.00mm)
64 TQFP-EP-IDP**
(10mm x 10mm x C64E-13R
1.00mm)
64 TQFP-EP
†
(10mm x 10mm x
1.00mm)
64 TQFP-EP
†
(10mm x 10mm x
1.00mm)
8mA
MAX9973HCCB*
16mA
MAX9974GC
CB*
—
8mA
Applications
Memory Testers
SOC Testers
MAX9974HCCB*
—
16mA
Note:
Devices are available in both leaded and lead-free
packages. Specify lead free by adding a + symbol at the end
of the part number when ordering.
*Future
product—contact factory for availability.
**EP-IDP
= Exposed paddle (inverted die paddle).
†
EP = Exposed paddle.
SPI is a trademark of Motorola Inc.
Pin Configuration appears at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
Dual Driver/Comparator/Load
with Internal DACs
MAX9973/MAX9974
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND ............................................................-0.3V to +11V
V
EE
to GND...............................................................-6V to +0.3V
V
CC
- V
EE
................................................................-0.3V to +17V
V
DD
to GND ..............................................................-0.3V to +5V
V
T0
, V
T1
to GND .......................................................-0.3V to +5V
DGS to GND .......................................................................±0.7V
DUT_ to GND.........................................................-2.5V to +7.5V
DATA_, NDATA_, RCV_, NRCV_ to GND .................-2.5V to +5V
DATA_ to NDATA_, RCV_ to NRCV_ .....................................±1V
DATA_, NDATA_, RCV_, NRCV_ to VTERM_......................±1.5V
SCLK, DIN,
CS, RST, LOAD
to GND .........-0.3V to (V
DD
+ 0.3V)
TEMP to GND ...........................................................-0.2V to +5V
All Other Pins to GND ......................(V
EE
- 0.3V) to (V
CC
+ 0.3V)
DUT_ Short Circuit to -1.5V to +6.5V..........................Continuous
Power Dissipation (T
A
= +70°C)
MAX997_GCCB (derate 125mW/°C above +70°C)......10.0W*
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature .....................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
*Dissipation
wattage values are based on still air with no heat sink. Actual maximum power dissipation is a function of heat extraction technique and may be
substantially higher.
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
CC
= +9.75V, V
EE
= -4.75V, V
DD
= 3.3V, V
DHV_
= +3V, V
DLV_
= 0, V
DTV_
= +1.5V, SC1 = SC0 = 0, V
CHV_
= +2.0V, V
CLV_
= +1.0V,
V
CPHV_
= +7.2V, V
CPLV_
= -2.2V, V
VTERM
= V
T_
= +1.8V, R
T
= 50Ω || 1pF, T
J
= +70°C, unless otherwise noted. All temperature coefficients
are measured at T
J
= +40°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
DRIVER
DC CHARACTERISTICS (R
L
≥
10MΩ, unless otherwise noted; includes DAC error)
V
DHV_
Output Voltage Range
V
DLV_
V
DTV_
V
DHV_
Output Offset Voltage
Output-Voltage Temperature
Coefficient (Notes 2, 3)
V
DHV_
Gain
V
DLV_
V
DTV_
V
DLV_
V
DTV_
V
DLV_
= -1.5V, V
DTV_
= +1.5V
V
DHV_
= +6.5V, V
DTV_
= +1.5V
V
DHV_
= +6.5V, V
DLV_
= -1.5V
V
DHV_
= +3V, V
DLV_
= -1.5V, V
DTV_
= +1.5V
V
DLV_
= 0V, V
DHV_
= +6.5V, V
DTV_
= +1.5V
V
DTV_
= +1.5V, V
DHV_
= +6.5V, V
DLV_
= -1.5V
DHV_, DLV_, DTV_
V
DLV_
= -1.5V, V
DTV_
= +1.5V,
V
DHV_
= 0 and +4.5V
V
DHV_
= +6.5V, V
DTV_
= +1.5V,
V
DLV_
= 0 and +4.5V
V
DHV_
= +6.5V, V
DLV_
= -1.5V,
V
DTV_
= 0 and +4.5V
0.998
0.998
0.998
±75
1
1
1
-1.45
-1.50
-1.50
+6.50
+6.45
+6.50
±50
±50
±50
±400
1.002
1.002
1.002
V/V
µV/°C
mV
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
Dual Driver/Comparator/Load
with Internal DACs
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +9.75V, V
EE
= -4.75V, V
DD
= 3.3V, V
DHV_
= +3V, V
DLV_
= 0, V
DTV_
= +1.5V, SC1 = SC0 = 0, V
CHV_
= +2.0V, V
CLV_
= +1.0V,
V
CPHV_
= +7.2V, V
CPLV_
= -2.2V, V
VTERM
= V
T_
= +1.8V, R
T
= 50Ω || 1pF, T
J
= +70°C, unless otherwise noted. All temperature coefficients
are measured at T
J
= +40°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
V
DLV_
= -1.5V, V
DTV_
= +1.5V,
V
DHV_
= 0, +0.75V, +1.5V,
+2.25V, +3V
V
DHV_
= +6.5V, V
DTV_
= +1.5V,
V
DLV_
= 0, +0.75V, +1.5V,
+2.25V, +3V
V
DLV_
= -1.5V, V
DHV_
= +6.5V,
V
DTV_
= 0, +0.75V, +1.5V,
+2.25V, +3V
V
DLV_
= -1.5V, V
DTV_
= +1.5V,
V
DHV_
= -1.25V and +6.5V
V
DHV_
= +6.5V, V
DTV_
= +1.5V,
V
DLV_
= -1.5V and +6.25V
V
DLV_
= -1.5V, V
DHV_
= +6.5V,
V
DTV_
= -1.5V and +6.5V
MIN
TYP
MAX
±5
UNITS
MAX9973/MAX9974
0 to 3V
relative to
calibration
points at 0
and 3V
Linearity Error
±5
±5
mV
Full range
relative to
calibration
points at 0
and 3V
±5
±5
±5
±2
±2
±2
±3
±3
±2
40
40
40
-120
+60
-120
+60
48
50
-60
+120
-60
+120
52
Ω
mA
dB
mV
mV
V
DHV_
to V
DLV
, V
DLV_
= 0,
V
DTV_
= 1.5V, V
DHV_
= 0.2V and 6.5V
V
DLV_
to V
DHV
, V
DHV_
= +5V,
V
DTV_
= +1.5V, V
DLV_
= -1.5V and +4.8V
Crosstalk
V
DTV_
to V
DLV_
and V
DHV
, V
DHV_
= +3V,
V
DLV_
= 0, V
DTV_
= -1.5V and +6.5V
V
DHV_
to V
DTV
, V
DTV_
= +1.5V,
V
DLV_
= 0, V
DHV_
= +1.6V and +3.0V
V
DLV_
to V
DTV
, V
DTV_
= +1.5V,
V
DHV_
= +3V, V
DLV_
= 0 and +1.4V
Term Voltage Dependence on
DATA_
V
DTV_
= +1.5V, V
DHV_
= +3V,
V
DLV_
= 0, DATA_ = 0 and 1
V
DHV_
, V
DHV_
= 3V, V
CC
and V
EE
independently varied over full range
DC Power-Supply Rejection
V
DLV_
, V
DLV_
= 0, V
CC
and V
EE
independently varied over full range
V
DTV_
, V
DTV_
= 1.5V, V
CC
and V
EE
independently varied over full range
V
DLV_
/V
DUT_
= -1.5V/+6.5V, DATA_ = 0
DC Drive Current Limit
V
DHV_
/V
DUT_
= +6.5V/-1.5V, DATA_ = 1
V
DTV_
/V
DUT_
= -1.5V/+6.5V, RCV_ = 1
V
DTV_
/V
DUT_
= +6.5V/-1.5V, RCV_ = 1
DC Output Resistance
(Note 4)
_______________________________________________________________________________________
3
Dual Driver/Comparator/Load
with Internal DACs
MAX9973/MAX9974
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +9.75V, V
EE
= -4.75V, V
DD
= 3.3V, V
DHV_
= +3V, V
DLV_
= 0, V
DTV_
= +1.5V, SC1 = SC0 = 0, V
CHV_
= +2.0V, V
CLV_
= +1.0V,
V
CPHV_
= +7.2V, V
CPLV_
= -2.2V, V
VTERM
= V
T_
= +1.8V, R
T
= 50Ω || 1pF, T
J
= +70°C, unless otherwise noted. All temperature coefficients
are measured at T
J
= +40°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
DATA_ = 1, V
DHV_
= 3V, V
DLV_
= 0,
V
DTV_
= 1.5V, I
DUT_ =
1mA to 40mA
DATA_ = 0, V
DHV_
= 3V, V
DLV_
= 0,
V
DTV_
= 1.5V, I
DUT_ =
-1mA to -40mA
(Note 6)
V
DLV_
= 0, V
DHV_
= 0.1V
Drive-Mode Overshoot
V
DLV_
= 0, V
DHV_
= 1V (Note 2)
V
DLV_
= 0, V
DHV_
= 3V (Note 2)
V
DLV_
= 0, V
DHV_
= 5V (Note 2)
Termination-Mode Overshoot
Settling Time (Note 8)
TIMING CHARACTERISTICS (Notes 5, 9)
Data to output; V
DHV_
= 3V, V
DLV_
= 0
Prop Delay (Note 2)
Drive to high impedance, high impedance to
drive (Note 10); V
DHV_
= +1V, V
DLV_
= -1V
Drive to term
Term to drive
Prop Delay Match
(Note 2)
Prop-Delay Temperature Coefficient
t
LH
vs. t
HL
Drivers within package; same edge
(Note 2)
V
DHV_
= 1V, V
DLV_
= 0, 2ns to
23ns pulse width
Prop Delay Change vs.
Pulse Width (Note 2)
V
DHV_
= 3V, V
DLV_
= 0, 3ns to
22ns pulse width
V
DHV_
= 5V, V
DLV_
= 0, 4ns to
21ns pulse width
Prop Delay Change vs.
Common Mode
V
DHV_
- V
DLV_
= 1V, V
DHV_
= 0 to 6V,
(using a DC block)
Drive to high impedance vs. high impedance
to drive; V
DHV_
= 1V, V
DLV_
= -1V (Note 11)
Delay Match
High impedance vs. data (Note 2)
Drive to term vs. term to drive; V
DHV_
= 3V,
V
DL V_
= 0, V
DT V_
= 1.5V ( Note 12)
Terminate vs. data
2
1.7
2.7
1.7
50
40
1
10
10
20
25
0.2
0.4
1
0.7
ns
3
4
4
4
100
100
5
100
100
100
ps
ps
ps
ps/°C
ns
(Note 7)
To within 100mV, V
DHV_
= 5V, V
DLV_
= 0
To within 50mV, V
DHV_
= 3V, V
DLV_
= 0
To within 25mV, V
DHV_
= 0.5V, V
DLV_
= 0
MIN
TYP
1
1
MAX
2
Ω
2
UNITS
DC Output Resistance Variation
AC CHARACTERISTICS (R
DUT
_ = 50Ω to ground) (Note 5)
Dynamic Drive Current
60
30
40
50
50
0
0.25
0.25
0.25
ns
75
175
275
mV
mV
mA
4
_______________________________________________________________________________________
Dual Driver/Comparator/Load
with Internal DACs
MAX9973/MAX9974
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +9.75V, V
EE
= -4.75V, V
DD
= 3.3V, V
DHV_
= +3V, V
DLV_
= 0, V
DTV_
= +1.5V, SC1 = SC0 = 0, V
CHV_
= +2.0V, V
CLV_
= +1.0V,
V
CPHV_
= +7.2V, V
CPLV_
= -2.2V, V
VTERM
= V
T_
= +1.8V, R
T
= 50Ω || 1pF, T
J
= +70°C, unless otherwise noted. All temperature coefficients
are measured at T
J
= +40°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
0.2V
P-P
programmed, V
DHV_
= 0.2V, V
DLV_
= 0,
20% to 80%
1V
P-P
programmed, V
DHV_
= 1V, V
DLV_
= 0,
10% to 90%
3V
P-P
programmed, V
DHV_
= 3V, V
DLV_
= 0,
10% to 90%, trim condition
5V
P-P
programmed V
DHV_
= 5V, V
DLV_
= 0,
10% to 90%
0.2V
P-P
programmed, V
DHV_
= 0.2V, V
DLV_
= 0,
20% to 80%
1V
P-P
programmed, V
DHV_
= 1V, V
DLV_
= 0,
10% to 90%
3V
P-P
programmed, V
DHV_
= 3V, V
DLV_
= 0,
10% to 90
5V
P-P
programmed, V
DHV_
= 5V, V
DLV_
= 0,
10% to 90% (Note 2)
SC1 = 0, SC0 = 1, V
DHV_
= 3V,
V
DLV_
= 0, 20% to 80%
Slew Rate
Relative
to SC1 =
SC0 = 0
SC1 = 1, SC0 = 0, V
DHV_
= 3V,
V
DLV_
= 0, 20% to 80%
SC1 = 1, SC0 = 1, V
DHV_
= 3V,
V
DLV_
= 0, 20% to 80%
0.2V
P-P
programmed,
V
DHV_
= 0.2V, V
DLV_
= 0
Positive or
negative
1V
P-P
programmed V
DHV_
= 1V,
V
DLV_
= 0 (Note 2)
3V
P-P
programmed V
DHV_
= 3V,
V
DLV_
= 0 (Note 2)
5V
P-P
programmed V
DHV_
= 5V,
V
DLV_
= 0 (Note 2)
0.2V
P-P
programmed, V
DHV_
= 0.2V, V
DLV_
= 0
Data Rate (Note 14)
1V
P-P
programmed, V
DHV_
= 1V, V
DLV_
= 0
3V
P-P
programmed, V
DHV_
= 3V, V
DLV_
= 0
5V
P-P
programmed, V
DHV_
= 5V, V
DLV_
= 0
Rise and Fall Time, Drive to Term
Rise and Fall Time, Term to Drive
V
DHV_
= 3V, V
DLV_
= 0, V
DTV_
= 1.5V,
measured 10% to 90% of waveform
V
DHV_
= 3V, V
DLV_
= 0, V
DTV_
= 1.5V,
measured 10% to 90% of waveform
75
50
25
0.4
0.7
1.5
2.4
2900
1300
600
400
1.6
0.7
ns
ns
Mbps
2
ns
2.5
3.5
%
0.35
1.0
MIN
TYP
0.20
0.50
1.2
2.0
40
150
ps
200
250
0.75
ns
1.5
MAX
UNITS
Rise and Fall Time
Rise and Fall Time Matching
Minimum Pulse Width (Note 13)
_______________________________________________________________________________________
5
FPGA/CPLD
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