ETC CS59201/D

CS59201
Winchester Servo
Preamplifier with
Low Current Drain
The CS59201 is a low noise servo preamplifier for use with ferrite
heads. It is a differential input, differential output design with fixed
gain of approximately 100. Features include low noise, wide
bandwidth and low current drain.
Features
• 50 MHz Bandwidth
• Operates From Any of Three Standard Supply Voltages:
– 8.3 V (IBM Compatible)
– 10 V
– 12 V
• Available in SO–8 Package
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SO–8
D SUFFIX
CASE 751
8
1
PIN CONNECTION AND
MARKING DIAGRAM
IN+
8
59201
ALYW
IN–
NC
VCC
1
VEE
IN+
OUT+
IN–
OUT–
A
WL, L
YY, Y
WW, W
NC
VCC
OUT–
OUT+
= Assembly Location
= Wafer Lot
= Year
= Work Week
ORDERING INFORMATION
Device
Package
Shipping
CS59201GD8
SO–8
95 Units/Rail
CS59201GDR8
SO–8
2500 Tape & Reel
VEE
Figure 1. Block Diagram
 Semiconductor Components Industries, LLC, 2001
April, 2001 – Rev. 0
1
Publication Order Number:
CS59201/D
CS59201
ABSOLUTE MAXIMUM RATINGS*
Rating
Value
Unit
Power Supply Voltage (VCC – VEE)
14
V
Differential Input Voltage
5.0
V
–65 to +150
°C
0 to 70
°C
Thermal Resistance, Junction–to–Case, RΘJC
45
°C/W
Thermal Resistance, Junction–to–Ambient, RΘJA
165
°C/W
Storage Temperature Range
Operating Temperature Range
*The maximum package power dissipation must be observed.
ELECTRICAL CHARACTERISTICS (TA = 25°C, (VCC – VEE) = 7.0 V to 13.2 V; unless otherwise specified.)
Characteristic
Test Conditions
Min
Typ
Max
Unit
–
80
100
120
V/V
30
50
–
MHz
General
Gain (Differential)
Bandwidth (3.0 dB)
VIN = 2.0 mV
Input Resistance
–
1040
1300
1560
Ω
Input Capacitance
–
–
20
30
pF
Input Dynamic Range
–
3.0
–
–
mV
Power Supply Current
(VCC – VEE) = 12 V
–
20
25
mA
Output Offset (Differential)
RS = 0, RL = 130 Ω
–
–
200
mV
Equivalent Input Noise
BW = 4.0 MHz, Note 1.
–
0.7
1.0
nV/Hz
PSRR, Input Referred
RS = 0, f ≤ 5.0 MHz, Note 1.
55
60
–
dB
Gain Sensitivity (Supply)
(VCC – VEE) = ±10%
–
–
±0.5
%/V
Gain Sensitivity (Temp.)
TA = 25°C to 70°C, RL = 130 Ω
–
–0.1
–
%/°C
CMRR, Input Referred
f ≤ 5.0 MHz
60
70
–
dB
Recommended
Supply Voltage (VCC – VEE)
–
7.45
9.0
10.8
8.3
10
12
9.15
11
13.2
V
V
V
Input Signal, VIN
–
–
2.0
–
mVPP
Ambient Temperature, TA
–
0
–
70
°C
1. 1.0 nV/root Hz and a bandwidth of 4.0 MHz equals 2.0 µVRMS.
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2
CS59201
PACKAGE PIN DESCRIPTION
Pin Number
SO–8
Pin Symbol
1
IN+
Positive input to preamplifier.
2
IN–
Negative input to preamplifier.
3, 8
NC
No connection.
4
VEE
Negative supply voltage.
5
OUT+
One of the amplifier outputs.
6
OUT–
One of the amplifier outputs.
7
VCC
Function
Positive supply voltage.
VCC
RL
RL
CC
REQ
CC
REQ
HEAD
VEE
Figure 2. Applications Diagram
Recommended Load Conditions
1. Input must be AC coupled.
2. CC’s are AC coupling capacitors.
3. RL’s are DC bias and termination resistors,
(recommended 130 Ω).
4.
5.
6.
7.
REQ represents equivalent load resistance.
For gain calculations RP = (RL × REQ)/(RL + REQ).
Differential gain = 0.72 RP (±18%)(RP in Ω).
Ceramic capacitors (0.1 µF) are recommended for
good power supply noise filtering.
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3
CS59201
PACKAGE DIMENSIONS
SO–8
D SUFFIX
CASE 751–07
ISSUE W
–X–
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
3. DIMENSION A AND B DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 (0.006) PER
SIDE.
5. DIMENSION D DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 (0.005) TOTAL IN
EXCESS OF THE D DIMENSION AT MAXIMUM
MATERIAL CONDITION.
A
8
5
0.25 (0.010)
S
B
1
M
Y
M
4
K
–Y–
G
C
N
X 45 SEATING
PLANE
–Z–
0.10 (0.004)
H
D
0.25 (0.010)
M
Z Y
S
X
M
J
S
DIM
A
B
C
D
G
H
J
K
M
N
S
MILLIMETERS
MIN
MAX
4.80
5.00
3.80
4.00
1.35
1.75
0.33
0.51
1.27 BSC
0.10
0.25
0.19
0.25
0.40
1.27
0
8
0.25
0.50
5.80
6.20
INCHES
MIN
MAX
0.189
0.197
0.150
0.157
0.053
0.069
0.013
0.020
0.050 BSC
0.004
0.010
0.007
0.010
0.016
0.050
0
8
0.010
0.020
0.228
0.244
ON Semiconductor and
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.
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intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or
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*Available from Germany, France, Italy, UK, Ireland
For additional information, please contact your local
Sales Representative.
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4
CS59201/D