19-1106; Rev 1; 11/96
KIT
ATION
EVALU
E
L
B
A
AVAIL
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
For power-sensitive applications, the MAX4147 has a
shutdown function that reduces supply current to less
than 1mA. In addition, superior SFDR (-82dBc at
10kHz, RL = 33Ω) makes it ideal as a transformer driver
for HDSL applications.
For a complete differential transmission link, use the
MAX4147 with the MAX4144 line receiver (see the
MAX4144 data sheet for more information).
________________________Applications
____________________________Features
♦ 2V/V Fixed Gain
♦ 300MHz -3dB Bandwidth
♦ 2000V/µs Slew Rate
♦ 82dBc SFDR at 10kHz
♦ 70dB CMR at 10MHz
♦ Low Differential Gain/Phase: 0.008%/0.03°
♦ High Output Drive: ±5.6V into 53Ω
♦ Low Power: 100mW
______________Ordering Information
PART
TEMP. RANGE
PIN-PACKAGE
-40°C to +85°C
14 SO
MAX4147ESD
__________________Pin Configuration
TOP VIEW
VDSL, ADSL, HDSL
VEE 1
Video Twisted-Pair Driver
IN+ 2
N.C. 3
Differential Pulse Amplifier
SHDN 4
Differential ADC Driver
N.C. 5
14 VCC
13 OUT+
Rf
RG
Rf
VEE 7
11 GND
10 SENSE9 OUT-
IN- 6
________Typical Application Circuit
12 SENSE+
MAX4147
8 VCC
SO
IN+
MAX4147
IN-
Rt
SENSE+
SENSE-
Rt
IN-
OUT+
OUT-
SENSE
MAX4144
Rt
OUT
IN+
Rt
VDSL
TRANSFORMER ISOLATION
________________________________________________________________ Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 408-737-7600 ext. 3468.
MAX4147
_______________General Description
The MAX4147 differential line driver offers high-speed
performance while consuming only 100mW of power.
Its amplifier has fully symmetrical inputs and outputs
and uses laser-trimmed, matched, thin-film resistors to
deliver 70dB CMR at 10MHz. Using current-feedback
techniques, the MAX4147 achieves a 300MHz bandwidth and a 2000V/µs slew rate.
Optimized for differential, high-output-current applications such as transformer drivers, the MAX4147 drives
±2.6V into a 26.5Ω load (single-ended) or ±5.6V into a
53Ω load (differential). This device is preset for a
closed-loop gain of 2V/V. Its ultra-low 0.008%/0.03° differential gain/phase allow for a variety of video and RF
signal-processing applications.
MAX4147
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC to VEE) ..................................................12V
Voltage on Any Input to Ground ......(VCC + 0.3V) to (VEE - 0.3V)
Continuous Power Dissipation (TA = +70°C)
SO (derate 8.33mW/°C above +70°C) .........................667mW
Short-Circuit Duration .........................................................10sec
Operating Temperature Range
MAX4147ESD ..................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°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
(VCC = +5V, VEE = -5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
6
mV
DC SPECIFICATIONS
Input Offset Voltage
VOS
VOUT = 0V, RL = ∞
0.5
TCVOS
VOUT = 0V, RL = ∞
30
IB
VOUT = 0V, RL = ∞, VIN = -VOS
9
20
µA
Input Offset Current
IOS
VOUT = 0V, RL = ∞, VIN = -VOS
0.03
2
µA
Input Voltage Noise
en
Input Offset Voltage Drift
Input Bias Current
Input Current Noise
In
Input Capacitance
CIN
f = 10kHz
8
f = 1MHz to 100MHz
80
µVRMS
f = 10kHz
1.7
pA/√Hz
f = 1MHz to 100MHz
17
nARMS
Differential Input Resistance
Differential Input Voltage Range
Common-Mode Input Voltage
Range
Gain
VCM
AV
1
pF
1
MΩ
-3.6
3.6
V
RL = ∞
-2.8
2.8
V
-1V ≤ VOUT ≤ +1V, RL = 53Ω
2
0.3
Common-Mode Rejection
CMR
VCM = ±2.8V
70
100
Power-Supply Rejection
PSR
VS = ±4.5V to ±5.5V
70
100
Quiescent Supply Current
ISY
VIN = 0, RL = ∞
Shutdown Supply Current
ISHDN
VIN = 0, RL = ∞
Output Voltage Swing
| VOUT |
Output Current Drive
IOUT
SHDN High Threshold
VIH
SHDN Low Threshold
VIL
SHDN Input Current
2
ISHDN
nV/√Hz
RL = ∞
-1V ≤ VOUT ≤ +1V, RL = 53Ω
Gain Error
µV/°C
V/V
1
%
dB
dB
10
13
mA
0.6
1
mA
Single-ended, RL = ∞
3.2
3.8
Differential, RL = ∞
7.2
7.8
Single-ended, RL = 26.5Ω
2.2
2.6
Differential, RL = 53Ω
5.0
5.6
VOUT = ±2.2V
110
160
V
mA
2.0
V
150
µA
0.8
V
VSHDN ≤ 0.8V
75
VSHDN ≥ 2V
10
_______________________________________________________________________________________
nA
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
(VCC = +5V, VEE = -5V, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
AC SPECIFICATIONS
-3dB Bandwidth
BW(-3dB)
Full-Power Bandwidth
0.1dB Bandwidth
FPBW
BW(0.1dB)
Common-Mode Rejection
Slew Rate
Settling Time
CMR
VOUT ≤ 0.1VRMS
300
MHz
VOUT = 2Vp-p
250
MHz
VOUT ≤ 0.1VRMS
70
MHz
f = 10MHz
70
dB
2000
V/µs
SR
Differential, -2V ≤ VOUT ≤ +2V
ts
1V ≤ VOUT ≤ +1V, RL = 150Ω,
AVCL = +2
to 0.1%
10
to 0.01%
30
ns
Differential Gain
DG
f = 3.58MHz, RL = 150Ω
0.008
%
Differential Phase
DP
f = 3.58MHz, RL = 150Ω
0.03
degrees
fC = 10kHz, VOUT = 4.0Vp-p, RL = 33Ω singleended, RS = 50Ω, Figure 1
-82
fC = 5MHz, VOUT = 2Vp-p,
RL = 150Ω differential, Figure 2
-75
Spurious-Free Dynamic Range
SFDR
dBc
_______________________________________________________________________________________
3
MAX4147
ELECTRICAL CHARACTERISTICS (continued)
__________________________________________Typical Operating Characteristics
(VCC = +5V, VEE = -5V, RL = 150Ω, TA = +25°C, unless otherwise noted.)
10
7
GAIN (dB)
GAIN (dB)
8
6
5
100
9
90
8
80
7
70
CMR (dB)
9
110
MAX4147-02
AVCL = +2
10
COMMON-MODE REJECTION
vs. FREQUENCY
11
MAX4147 TOC-01
11
LARGE-SIGNAL GAIN
vs. FREQUENCY
6
5
60
50
4
4
40
3
3
30
2
2
20
1
1
10
100k
10M
1M
100M
1G
100k
1M
FREQUENCY (Hz)
10M
100M
MAX4147 TOC-02
SMALL-SIGNAL GAIN
vs. FREQUENCY
100k
1G
AVCL = +2
OUT
GND
VOLTAGE (500mV/div)
IN
GND
OUT
GND
TIME (10ns/div)
TIME (10ns/div)
60
50
40
1000
316.2
100
31.6
10
3.16
30
1
20
0.32
10
1M
10M
FREQUENCY (Hz)
100M
0.1
100k
30
ISOLATION RESISTANCE (Ω)
70
35
MAX4147-06
3162.3
OUTPUT IMPEDANCE (Ω)
80
4
10,000
MAX4147-04
90
ISOLATION RESISTANCE
vs. CAPACITATIVE LOAD
CLOSED-LOOP OUTPUT IMPEDANCE
vs. FREQUENCY
POWER-SUPPLY REJECTION
vs. FREQUENCY
MAX4144/4147-07
VOLTAGE (20mV/div)
GND
100
100M
LARGE-SIGNAL
PULSE RESPONSE
IN
110
10M
FREQUENCY (Hz)
AVCL = +2
100k
1M
FREQUENCY (Hz)
SMALL-SIGNAL
PULSE RESPONSE
PSR (dB)
MAX4147
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
25
20
15
10
5
0
1M
10M
FREQUENCY (Hz)
100M
0
50
100
150
200
CAPACITATIVE LOAD (pF)
_______________________________________________________________________________________
250
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
10
0
MAX4144/4147-10
CURRENT NOISE (nA/√Hz)
10
MAX4147-09
100
MAX4147-08
100
VOLTAGE NOISE (nV/√Hz)
5MHz HARMONIC DISTORTION
vs. LOAD
CURRENT NOISE
vs. FREQUENCY
-10
HARMONIC DISTORTION (dBc)
VOLTAGE NOISE
vs. FREQUENCY
-20
-30
-40
-50
-60
-70
-80
2ND HARMONIC
-90
-100
1
1k
10k
100k
1M
10
100
1k
-50
-60
-70
3RD HARMONIC
-90
100k
10M
1M
-30
-40
-50
-60
0
MAX4144/4147-14
8
1
2
3
0
0
25
50
75
TEMPERATURE (°C)
100 125
50
100
150
200
LOAD (Ω)
INPUT OFFSET VOLTAGE
vs. TEMPERATURE
INPUT BIAS CURRENT
vs. TEMPERATURE
1.5
1.0
0.5
0
16
250
14
12
10
8
6
-1.0
-75 -50 -25
8
4
-0.5
7
10
OUTPUT SWING (Vp-p)
2.0
VOLTAGE (mV)
CURRENT (mA)
9
12
4
-100
100M
14
6
2ND HARMONIC
-90
10
16
-80
POWER-SUPPLY CURRENT
vs. TEMPERATURE
11
3RD HARMONIC
-70
FREQUENCY (Hz)
12
18
MAX4144/4147-12
-20
1000
800
OUTPUT SWING
vs. LOAD RESISTANCE
0
-100
600
400
5MHz HARMONIC DISTORTION
vs. OUTPUT SWING
-10
2ND HARMONIC
200
LOAD (Ω)
CURRENT (µA)
-80
0
1M
MAX4144/4147-15
AVCL = +2V
V0 = 2Vp-p
HARMONIC DISTORTION (dBc)
-40
MAX4147 TOC-05
HARMONIC DISTORTION (dBc)
-30
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
HARMONIC DISTORTION
vs. FREQUENCY
10k
MAX4144/4147-13
100
OUTPUT SWING (Vp-p)
10
MAX4144/4147-16
1
3RD HARMONIC
4
-75 -50 -25
0
25
50
75
TEMPERATURE (°C)
100 125
-75 -50 -25
0
25
50
75
100 125
TEMPERATURE (°C)
_______________________________________________________________________________________
5
MAX4147
____________________________Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 150Ω, TA = +25°C, unless otherwise noted.)
____________________________Typical Operating Characteristics (continued)
(VCC = +5V, VEE = -5V, RL = 150Ω, TA = +25°C, unless otherwise noted.)
+12
+10
CL = 15pF
+8
CL = 10pF
GAIN (dB)
8.0
7.9
7.8
+6
+4
CL=5pF
0
7.7
-2
-75 -50 -25
0
25
50
75
100 125
-4
100k
TEMPERATURE (°C)
0.006
A = +2V/V
0.005 V
0.000
-0.005
-0.010
-0.020
0
100
IRE
+2
7.6
GAIN (%)
+14
1M
10M
PHASE (deg)
8.1
MAX4147-18
+16
MAX4144/4147-17
8.2
DIFFERENTIAL GAIN
AND PHASE
SMALL-SIGNAL GAIN
vs. FREQUENCY AND CAPACITIVE LOAD
MAX4147 TOC-06
DIFFERENTIAL OUTPUT VOLTAGE SWING
vs. TEMPERATURE
VOLTAGE (V)
MAX4147
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
0.04
0.03 AV = +2V/V
0.02
0.01
0.00
-0.01
100M
0
FREQUENCY (Hz)
100
IRE
______________________________________________________________Pin Description
PIN
6
NAME
FUNCTION
1, 7
VEE
Negative Power Supply. Connect to -5V.
2
IN+
Noninverting Input
3, 5
N.C.
No Connect. Not internally connected.
4
SHDN
Logic Input for Shutdown Circuitry. A logic low enables the amplifier. A logic high disables the
amplifier. The amplifier outputs are high impedance in shutdown mode; thus the impedances seen at
OUT+ and OUT- are that of the feedback resistors and the protection circuitry (Figure 3).
6
IN-
Inverting Input
8, 14
VCC
Positive Power Supply
Inverting Output
9
OUT-
10
SENSE-
11
GND
12
SENSE+
13
OUT+
Sense Line for the Inverting Output. Connect to OUT-, close to the pin.
Ground
Sense Line for the Noninverting Output. Connect to OUT+, close to the pin.
Noninverting Output
_______________________________________________________________________________________
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
RG
50Ω
MAX4147
MAX4147
MAX4147
IN+
IN+
OUT+
RT
50Ω
VMEASURE
RG
50Ω
RT
50Ω
OUT+
VMEASURE+
33Ω
150Ω
33Ω
OUT-
OUT-
IN-
VMEASURE-
IN-
Figure 1. Single-Ended Distortion Setup
Figure 2. Differential Distortion Setup
IN-
MAX4147
OUT700
1.4k
700
OUT+
IN+
Figure 3. MAX4147 Shutdown Equivalent Circuit
_______________________________________________________________________________________
7
MAX4147
300MHz, Low-Power,
High-Output-Current, Differential Line Driver
________________________________________________________Package Information
DIM
D
0°-8°
A
0.101mm
0.004in.
e
B
A1
E
C
L
Narrow SO
SMALL-OUTLINE
PACKAGE
(0.150 in.)
H
A
A1
B
C
E
e
H
L
INCHES
MAX
MIN
0.069
0.053
0.010
0.004
0.019
0.014
0.010
0.007
0.157
0.150
0.050
0.244
0.228
0.050
0.016
DIM PINS
D
D
D
8
14
16
MILLIMETERS
MIN
MAX
1.35
1.75
0.10
0.25
0.35
0.49
0.19
0.25
3.80
4.00
1.27
5.80
6.20
0.40
1.27
INCHES
MILLIMETERS
MIN MAX
MIN
MAX
0.189 0.197 4.80
5.00
0.337 0.344 8.55
8.75
0.386 0.394 9.80 10.00
21-0041A
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 1996 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
