DATASHEET
Monolithic Multi-Throw Driver Chips
131-SP1750-04 (Bare die)
010-SP1750-001 (Packaged die)
• 2 ns Video Switching Time
• Low in Band Noise: -50 dBm at 1 GHz
• True Differential Inputs
• Compatible with TTL, ECL, and CMOS to 5.0V
• Internal References for TTL, CMOS, ECL
Mercury Systems’ Silicon Monolithic PIN/FET Driver Chips
offer new low cost driver options for low power multi-throw
switches. Versatile logic modes, multiple outputs, and provision for trade-off between switching speed and in band noise
make these drivers suitable for a wide range of applications,
both PIN and FET switches. Also, the differential input permits
use in RF controlled limiter or receiver protector circuits.
Additional Features
•Internal References for TTL, CMOS, ECL
•Inverting, Non-Inverting
•Low Internal Current
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•±3.0 Volts, ±120 mA Output Per Driver
Electrical Specifications (-50ºC to +85ºC)
Output Current
±120 mA, Min., Per Driver
Peak Output Current
±300 mA, Min., Per Driver
Open Circuit Output Voltage ±3.0 Volts, Min. (+/-5V Supplies) 2
Switching Time
4 ns, Max., TON and TOFF 1
Internal Current (Per Driver)
+/- 6.3 mA, Typ.
Internal Current (Total)
± 32.0 mA, Typ.
Operating Voltage
+4.5/+5.5V and -4.5/-5.5V 3
Internal TTL References
+1.6 ± 0.1V
Internal ECL Reference
-1.26 ± 0.1V
TTL, ECL, Logic Inputs
10 KΩ to Vcc; Sink up to 1.4 m
Chip Dimensions
0.103 ± 0.003 by 0.092 ± 0.003 by
0.018 ± 0.001
Bonding Pads
4.7 Mils, Min., Octagon, Aluminum
Metallization
Reliability
All units are designed to meet the
environmental and screening
requirements of MIL-STD-883
•Multiple Outputs from Each Driver
•ESD Protected
1. Driving opposed polarity pair 1N4148, 50% to 90% and 50% to 10%
2. Output voltage varies 1:1 with supply
3. Absolute maximum voltage Vcc – Vee 12 volts
Mercury Systems is a best-of-breed provider of commercially
developed, open sensor and Big Data processing systems,
software and services for critical commercial, defense and
intelligence applications.
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Logic 1
Driver NBR4
Pad 7 Connected to Pad 12; Logic Inputs to Pad 8: TTL - Non-Inverting.
Pad 8 connected to Pad 19; Logic Input to Pad 7: ECL – Inverting.
Logic 0
Outputs
TON
Direct; +/-3.0V at 120 mA; 300 mA peak - Not short circuit protected.
TOFF
(+10 mA)
500Ω series resistor, for 5 mA output.
250Ω series resistor, for 10 mA output.
Series diode for driving series-shunt configurations.
(-10 mA)
Typical Switching Waveform, Output TON TOFF, 4 ns, Max., 2 ns, Typical.
Comments
Vcc
•Approximately 0.1V differential is enough to control outputs.
•Slow down capacitor, approximately 2 - 10 pF, will reduce in
band RF noise substantially with minor degradation of switching
speed. Connect to either VEE or to ground.
•Mount capacitors to ground from each power supply; minimal
lead length.
Approximately 0.01 µF in parallel with 100 pF to +Vcc and –Vee
•Slow down pads are for use when switching speeds are not critical but in band RF noise is. Capacitor Installed from slow
down pad to -Vee or ground.
•The bottom of the chip should be either floating or connected to VEE.
•Thermal Resistance (T=85°C)
Die: 2.0 °C/W (Junction to die bottom)
+
250 Ω
Logic Ref
(TTL, ECL, other)
Vee
B
C
D
With the “-” input tied to the desired logic reference, the driver will be non-inverting
With the “+” input tied to the desired logic reference, the driver will be inverting
4D Out
4B Out
36
•Effective source (output) impedance approximately 5 ohms.
500 Ω
Logic Input
•For single ended operations, the other input must be connected
to the ECL or TTL reference.
•One of the logic ports should be grounded on any unused active
drivers.
A
35
4A Out
2D Out 2A Out
33
34
32
2C Out
31
4C Out
1
30
2B Out
3C Out
2
29
1D Out
3B Out
3
28
1C Out
3D Out
4
27
1B Out
3A Out
5
26
1A Out
4 Slow Down
6
25
2 Slow Down
4 (-) In
7
24
2 (-) In
4 (+) In
8
23
2 (+) In
3 Slow Down
9
22
1 Slow Down
3 (-) In
10
21
1 (-) In
3 (+) In
11
20
1 (+) In
TTL REF
12
19
ECL REF
13
14
+5V
15
16
17
18
GND
Package: 17.4 °C/W (Junction to package pads with 2 mils Sn63 solder on FR4 in still air)
µ”
Dimensional drawing and pin-out are of the packaged device.
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Mercury Systems, Inc. believes this information is accurate as of its publication date and is not responsible for any inadvertent errors. The information contained herein is subject to change without notice.
Copyright © 2014 Mercury Systems, Inc.3040.01E-0714-DS-sp1750-04
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