19-0474; Rev 9; 10/11
Quad, Ultra-Low-Power, 300Mbps ATE
Drivers/Comparators
General Description
The MAX9972 four-channel, ultra-low-power, pin-elec-
tronics IC includes, for each channel, a three-level pin
driver, a window comparator, a passive load, and
force-and-sense Kelvin-switched parametric measure-
ment unit (PMU) connections. The driver features a
-2.2V to +5.2V voltage range, includes high-impedance
and active-termination (3rd-level drive) modes, and is
highly linear even at low voltage swings. The window
comparator features 500MHz equivalent input band-
width and programmable output voltage levels. The
passive load provides pullup and pulldown voltages to
the device-under-test (DUT).
Low-leakage, high-impedance, and terminate controls
are operational configurations that are programmed
through a 3-wire, low-voltage, CMOS-compatible serial
interface. High-speed PMU switching is realized through
dedicated digital control inputs.
This device is available in an 80-pin, 12mm x 12mm
body, 1.0mm pitch TQFP with an exposed 6mm x 6mm
die pad on the bottom of the package for efficient heat
removal. The MAX9972 is specified to operate over the
0°C to +70°C commercial temperature range, and fea-
tures a die temperature monitor output.
Features
o
Small Footprint—Four Channels in 0.3in
2
o
Low-Power Dissipation: 325mW/Channel (typ)
o
High Speed: 300Mbps at 3V
P-P
o
-2.2V to +5.2V Operating Range
o
Active Termination (3rd-Level Drive)
o
Integrated PMU Switches
o
Passive Load
o
Low-Leak Mode: 20nA (max)
o
Low Gain and Offset Error
MAX9972
Ordering Information
PART
MAX9972ACCS+
TEMP
RANGE
0°C to
+70°C
PIN-
PACKAGE
80 TQFP-EP*
HEAT
EXTRACTION
Bottom
Applications
NAND Flash Testers
DRAM Probe Testers
Low-Cost Mixed-Signal/System-on-Chip (SoC)
Testers
Active Burn-In Systems
Structural Testers
+Denotes
a lead(Pb)-free/RoHs-compliant package.
*EP
= Exposed pad.
Pin Configuration appears at end of data sheet.
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
Quad, Ultra-Low-Power, 300Mbps ATE
Drivers/Comparators
MAX9972
ABSOLUTE MAXIMUM RATINGS
V
DD
to GND ...........................................................-0.3V to +9.4V
V
SS
to GND..........................................................-6.25V to +0.3V
V
DD
to V
SS
........................................................................+15.7V
V
L
to GND.................................................................-0.3V to +5V
DHV_, DTV_, DLV_, LDV_, DUT_ to GND ...................V
SS
to V
DD
DATA_, RCV_ ...........................................................-0.3V to +5V
CHV_, CLV_, CMPH_, CMPL_, COMPHI,
COMPLO to GND.....................................................V
SS
to V
DD
FORCE_, SENSE_, PMU_ to GND ..............................V
SS
to V
DD
LD,
DIN, SCLK,
CS
to GND......................................-0.3V to +5V
DUT_, CMPH_, CMPL_ Short-Circuit Duration ...........Continuous
DHV_, DLV_, DTV_ to Each Other ..............................V
SS
to V
DD
CHV_, CLV_ to DUT_ ..................................................V
SS
to V
DD
DOUT to GND...........................................................-0.3V to +5V
TEMP Short-Circuit Duration ......................................Continuous
FORCE_ Path Switch Current..............................................50mA
SENSE_ Path Switch Current .............................................1.5mA
Continuous Power Dissipation (T
A
= +70°C)
80-Pin TQFP-EP (derate 35.7mW/°C above +70°C) ....2857mW
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
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
DD
= +8V, V
SS
= -5V, V
L
= +3V, V
COMPHI
= +1V, V
COMPLO
= 0V, V
LDV_
= 0V, LOAD EN LOW = LOAD EN HIGH = 0,
T
J
= +75°C. All temperature coefficients measured at T
J
= +50°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
DC CHARACTERISTICS
Voltage Range
Gain
Gain Temperature Coefficient
Offset
Offset Temperature Coefficient
Power-Supply Rejection Ratio
Maximum DC Drive Current
DC Output Resistance
DC Output Resistance Variation
PSRR
I
DUT_
V
DD
, V
SS
independently varied over full
range
All drive mode specs valid over this range
I
DUT_
= ±10mA (Note 2)
I
DUT_
= -40mA to +40mA
DHV_ to DLV_ and DTV_:
V
DLV_
= V
DTV_
= +1.5V,
V
DHV_
= -2.2V, +5.2V
DC Crosstalk
DLV_ to DHV_ and DTV_:
V
DHV_
= V
DTV_
= +1.5V,
V
DLV_
= -2.2V, +5.2V
DTV_ to DHV_ and DLV_:
V
DHV_
= V
DLV_
= +1.5V,
V
DTV_
= -2.2V, +5.2V
Linearity Error
0 to 3V (Note 3)
Full range (Note 4)
±40
48.5
49.5
50.5
2.5
5
V
DHV_
= 2V, V
DLV_
= 0V, V
DTV_
= 1V
±250
18
Measured at 0V and 3V
-2.2
0.995
1
50
±10
+5.2
1.005
V
V/V
ppm/°C
mV
µV/°C
mV/V
mA
_
_
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DRIVER (all specifications apply when DUT_ = DHV_, DUT_ = DTV_, or DUT_ = DLV_)
5
mV
5
±5
±15
mV
mV
2
_______________________________________________________________________________________
Quad, Ultra-Low-Power, 300Mbps ATE
Drivers/Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +8V, V
SS
= -5V, V
L
= +3V, V
COMPHI
= +1V, V
COMPLO
= 0V, V
LDV_
= 0V, LOAD EN LOW = LOAD EN HIGH = 0,
T
J
= +75°C. All temperature coefficients measured at T
J
= +50°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
AC CHARACTERISTICS (Note 5)
Dynamic Output Current
Drive-Mode Overshoot,
Undershoot, and Preshoot
Term-Mode Spike
High-Impedance-Mode Spike
Propagation Delay, Data to Output
Prop-Delay Temperature
Coefficient
Prop-Delay Match, t
LH
vs. t
HL
Prop-Delay Skew, Drivers Within
Package
3V
P-P
, 40MHz,
PW = 4ns to 21ns
1V
P-P
, 40MHz,
PW = 2.5ns to 23.5ns
(Note 1)
200mV to 4V
P-P
swing (Note 6)
V
DHV_
= V
DTV_
= 1V, V
DLV_
= 0V
V
DLV_
= V
DTV_
= 0V, V
DHV_
= 1V
V
DLV_
= -1V, V
DHV_
= 0V
V
DLV_
= 0V, V
DHV_
= 1V
1.6
40
5%
+10
25
25
25
25
2.6
10
30
150
20
ps
90
80
1.8
1.6
25
0.7
0.7
1.5
2.0
2.6
3.4
±5
1.8
2.4
3.3
ns
%
2.5
ns
ps
ns
ns
mV
4.2
mA
mV
mV
mV
ns
ps/°C
ps
ps
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX9972
Prop-Delay Change vs. Pulse
Width
Relative to 12.5ns
pulse
Prop-Delay Change vs. Common-
Mode Voltage
Prop Delay, Data to High
Impedance
Prop Delay, Data to Term
Minimum Voltage Swing
1V
P-P
, V
DLV_
= 0 to 3V, relative to delay at
V
DLV_
= 1V
V
DHV_
= +1.5V, V
DLV_
= -1.5V, both
directions
V
DHV_
= +1.5V, V
DLV_
= -1.5V, V
DTV_
= 0V,
both directions
(Note 7)
V
DHV_
= 0.2V, V
DLV_
= 0V, 20% to 80%
V
DHV_
= 1V, V
DLV_
= 0V, 20% to 80%
V
DHV_
= 3V, V
DLV_
= 0V, 10% to 90%
Rise/Fall Time
V
DHV_
= 4V, V
DLV_
= 0V,
R
L
= 500_, 10% to 90%
V
DHV_
= 5V, V
DLV_
= 0V,
R
L
= 500_, 10% to 90%
Rise/Fall-Time Matching
Minimum Pulse Width (Note 8)
V
DHV_
= 1V to 5V
200mV, V
DHV_
= 0.2V, V
DLV_
= 0V
1V, V
DHV_
= 1V, V
DLV_
= 0V
3V, V
DHV_
= 3V, V
DLV_
= 0V
_______________________________________________________________________________________
3
Quad, Ultra-Low-Power, 300Mbps ATE
Drivers/Comparators
MAX9972
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +8V, V
SS
= -5V, V
L
= +3V, V
COMPHI
= +1V, V
COMPLO
= 0V, V
LDV_
= 0V, LOAD EN LOW = LOAD EN HIGH = 0,
T
J
= +75°C. All temperature coefficients measured at T
J
= +50°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
COMPARATOR (Note 9)
DC CHARACTERISTICS (driver in high-impedance mode) (V
COMPHI
= 0.8V, V
COMPLO
= 0.2V)
Input Voltage Range
Differential Input Voltage
Hysteresis
Input Offset Voltage
Input Offset Temperature
Coefficient
Common-Mode Rejection Ratio
Linearity Error (Note 10)
Power-Supply Rejection Ratio
AC CHARACTERISTICS (Note 11)
Equivalent Input Bandwidth
Propagation Delay
Prop-Delay Temperature
Coefficient
Prop-Delay Match, t
LH
to t
HL
Prop-Delay Skew, Comparators
Within Package
Prop-Delay Dispersions vs.
Common-Mode Voltage
(Note 14)
Prop-Delay Dispersions vs.
Overdrive
Prop-Delay Dispersions vs.
Pulse Width
Prop-Delay Dispersions vs.
Slew Rate
Same edges (LH and HL)
0 to 4.9V
-1.9V to +4.9V
V
CHV_
= V
CLV_
= 0.1V to 0.9V,
V
DUT_
= 1V
P-P
, t
R
= t
F
= 500ps, 10% to
90% relative to timing at 50% point
2ns to 23ns pulse width, relative to 12.5ns
pulse width
0.5V/ns to 2V/ns
Terminated (Note 12)
High impedance (Note 13)
0.9
500
300
2.2
4
120
200
20
ps
30
3.1
MHz
ns
ps/°C
ps
ps
PSRR
CMRR
V
DUT_
= 0 and 3V
V
DUT_
= 1.5V
V
DUT_
= -2.2V, +5.2V
V
DUT_
= 1.5V, supplies independently
varied over full range
60
±5
±10
5
V
DUT_
- V
CHV_
, V
DUT_
- V
CLV_
V
CHV_
= V
CLV_
= 1.5V
V
DUT_
= 1.5V
25
-2.2
-7.4
8
±10
+5.2
+7.4
V
V
mV
mV
μV/°C
dB
mV
mV/V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
220
ps
±60
50
ps
ps
4
_______________________________________________________________________________________
Quad, Ultra-Low-Power, 300Mbps ATE
Drivers/Comparators
ELECTRICAL CHARACTERISTICS (continued)
(V
DD
= +8V, V
SS
= -5V, V
L
= +3V, V
COMPHI
= +1V, V
COMPLO
= 0V, V
LDV_
= 0V, LOAD EN LOW = LOAD EN HIGH = 0,
T
J
= +75°C. All temperature coefficients measured at T
J
= +50°C to +100°C, unless otherwise noted.) (Note 1)
PARAMETER
LOGIC OUTPUTS
Reference Voltages COMPHI and
COMPLO
Output High Voltage Offset
Output Low Voltage Offset
Output Resistance
Current Limit
Rise/Fall Time
PASSIVE LOAD
DC CHARACTERISTICS (R
DUT_
≥
10MΩ)
LDV_ Voltage Range
Gain
Gain Temperature Coefficient
Offset
Offset Temperature Coefficient
Power-Supply Rejection Ratio
Output Resistance
Tolerance—High Value
Output Resistance
Tolerance—Low Value
Switch Resistance Variation
Maximum Output Current
(Note 16)
Linearity Error, Full Range
AC CHARACTERISTICS
Settling Time, LDV_ to Output
Output Transient Response
V
LDV_
= -2V to +5V step, R
DUT_
= 100kΩ
(Note 17)
V
LDV_
= +1.5V, V
DUT_
= -2V to +5V square
wave at 1MHz, R
DUT_
= 50Ω
0.5
20
µs
ns
PSRR
I
DUT_
= ±0.2mA, V
LDV_
= 1.5V
I
DUT_
= ±0.1mA, V
LDV_
= 1.5V
Relative to 1.5V
V
LDV_
= -2V, V
DUT_
= +5V
V
LDV_
= +5V, V
DUT_
= -2V
Measured at -2.2V, +1.5V, and +5.2V
(Note 16)
0 to 3V
Full range
7.125
1.90
0.02
10
7.5
2.0
±10
±30
±4
±4
±25
7.875
2.10
-2.2
0.99
0.02
±100
+5.2
1.01
V
V/V
%/°C
mV
mV/°C
mV/V
kΩ
kΩ
%
mA
mV
20% to 80%, V
CHV_
= 1V
P-P
,
load = T-line, 50Ω, > 1ns
(Note 15)
I
OUT
= 0mA, relative to COMPHI at
V
COMPHI
= 1V
I
OUT
= 0mA, relative to COMPLO at
V
COMPLO
= 0V
I
CHV_
= I
CLV_
= ±10mA
40
50
25
0.7
0
+3.6
±50
±50
60
V
mV
mV
Ω
mA
ns
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MAX9972
_______________________________________________________________________________________
5
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