MP108FD Datasheet, PDF (1/4 Pages) Cirrus Logic – POWER OPERATIONAL AMPLIFIER

MICROTECHNOLOGY
POWER OPERATIONAL AMPLIFIER
MP108FD
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX [phone]
FEATURES
• LOW COST
• HIGH VOLTAGE - 200 VOLTS
• HIGH OUTPUT CURRENT - 10 AMPS
• 100 WATT DISSIPATION CAPABILITY
• 300kHz POWER BANDWIDTH
APPLICATIONS
• INKJET PRINTER HEAD DRIVE
• PIEZO TRANSDUCER DRIVE
• INDUSTRIAL INSTRUMENTATION
• REFLECTOMETERS
• ULTRA-SOUND TRANSDUCER DRIVE
DESCRIPTION
The MP108FD operational amplifier is a surface mount
constructed component that provides a cost effective
solution in many industrial applications. The MP108FD offers
outstanding performance that rivals much more expensive
hybrid components yet has a footprint of only 4 sq in. The
MP108FD has many optional features such as four-wire
current limit sensing and external compensation. The 300 kHz
power bandwidth and 10 amp output of the MP108FD makes
it a good choice for piezo transducer drive applications. The
MP108FD is built on a thermally conductive but electrically
insulating substrate that can be mounted to a heat sink.
TYPICAL APPLICATION
R_F
+V_S
34-pin DIP
PACKAGE STYLE FD
R_I
PRINT
NOZZLE
COMMAND
VOLTAGE
+V_S
+V_B
GND
-I_LIM
-V_B
-V_S
C_C2
GND
OUT
C_C1
C_C
+I_LIM
R_LIM
PIEZO
TRANSDUCER
EQUIVALENT CIRCUIT DIAGRAM
+Vb 8
+Vb 4
C1
R1
R2 _Q17
GND 3
R3
BACK
PLATE
2
C5
Q1A
Q1B
TP 1
D1
Q2
Q6
SUBSTRATE
Q4
Q7
R5
BACKPLATE
Cc1 5
Cc2 6
Q8
R15
Q9
D2
Q12 Q13
R9
-IN 34
R12
+IN 33
Q15A Q15B
R10 R11
GND 32
C3
-Vb 30
Q23
R19
R7
Q14
R8
IC1
Q18
Q19
Q20
Q24
Q21
Q11
Q16
R17
R20
-Vb 25
14 +Vs
15 +Vs
16 +Vs
Q3
11 OUT
12 OUT
13 OUT
28 +Ilim
27 -Ilim
20 OUT
21 OUT
22 OUT
Q22
17 -Vs
18 -Vs
19 -Vs
-V_S
INKJET NOZZLE DRIVE
The MP108FD's fast slew rate and wide power bandwith
make it an ideal nozzle driver for industrial inkjet printers.
The 10 amp output capability can drive hundreds of nozzles
simultaneously.
EXTERNAL CONNECTIONS
C1
+
C5
C2
C6
CC
OUT OUT OUT
1
23
45
6
7 8 9 10 11 12 13 14 15 16
TP BACK GND +V_B CC1 CC2 NC +VB NC NC
PLT
VIEW FROM COMPONENT SIDE
+VS +VS +VS
-IN +IN GND NC -VB NC +ILIM -ILIM NC -VB NC NC
-VS -VS -VS
34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
C7
RLIM
C8
OUT OUT OUT
LOAD &
FEEDBACK
NOTES:
CC IS NPO (COG) RATED FOR FULL SUPPLY VOLTAGE +VS TO -VS
BOTH PINS 3 AND 32 REQUIRED CONNECTED TO SIGNAL GROUND
C2 AND C3 ELECTROLYTIC ≥ 10µF PER AMP OUTPUT CURRENT
C1,C4,C5-8 HIGH QUALITY CERAMIC ≥ 0.1µF
ALL OUTPUT PINS MUST BE TIED TOGETHER
C_C
100pF
33pF
10pF
CC
470pF
220pF
33pF
+ C3
C4
PHASE COMPENSATION
GAIN W/O BOOST TYP. SLEW RATE
≥1
55 V/µS
≥4
135 V/µS
≥ 10
170 V/µS
GAIN W BOOST
≥1
≥3
≥ 10
TYP. SLEW RATE
12 V/µS
35 V/µS
135 V/µS
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