1992 Burr-Brown Corporation
PDS-1165D
Printed in U.S.A. July, 1993
High-Speed Operational
TRACK-AND-HOLD AMPLIFIER
FEATURES
q
VERY GOOD SPURIOUS FREE DYNAMIC
RANGE:
90dB at 1MHz F
IN
and 20MSPS
86dB at 2MHz F
IN
and 20MSPS
77dB at 5MHz F
IN
and 20MSPS
q
LOW ACQUISITION TIME: 30ns to 0.01%
q
LOW DROOP RATE: 8mV/
s max T
MIN
to
T
MAX
q
LOW POWER CONSUMPTION: 335mW
q
EXTREMELY VERSATILE ARCHITECTURE:
Noninverting, Inverting, and
Differential Gains
q
LOGIC FLEXIBILITY: TTL and ECL
Compatible
q
SMALL PACKAGE: SO-16
q
EXTENDED TEMPERATURE SPECS:
40
C to +85
C
International Airport Industrial Park Mailing Address: PO Box 11400 Tucson, AZ 85734 Street Address: 6730 S. Tucson Blvd. Tucson, AZ 85706
Tel: (520) 746-1111 Twx: 910-952-1111 Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
SHC605
APPLICATIONS
q
A/D CONVERTER FRONT ENDS
q
MULTIPLE CHANNEL SIMULTANEOUS
SAMPLING
q
IMPROVING FLASH ADC PERFORMANCE
q
PEAK DETECTORS
q
DAC DEGLITCHING
C
1
C
2
IN
+IN
Select
DGND
Hold
Thresh/
Hold
Lock
Lock
+V
S
V
S
2, 3
15, 16
V
out
AGND
8
1
10
9
5, 6, 7
4
12
11
14 13
DESCRIPTION
The SHC605 is a monolithic high-speed, high accu-
racy track-and-hold amplifier. It combines fast acqui-
sition and low distortion to provide a complete solu-
tion for a wide range of sampling applications. Its new
proprietary closed-loop architecture provides a single-
chip solution to many data acquisition problems for-
merly requiring more than one device. Noninverting,
inverting, and differential gain configurations are easy
to apply with the SHC605. An on-board logic refer-
ence circuit makes the SHC605 compatible with both
single-ended and differential ECL or TTL clock in-
puts. An internal track-mode lockout circuit allows
edge-triggered operation in data acquisition systems.
The SHC605 is available in a SO-16 surface-mount
package specified for the 40C to +85C industrial
temperature range.
DEMO BOARD
AVAILABLE
SHC605
2
SHC605
SPECIFICATIONS
ELECTRICAL
At T
A
= +25
C,
V
S
=
5V, G = +1V/V, R
L
= 100
, C
L
= 5pF, and ECL Hold/Hold Inputs, unless otherwise noted.
SHC605AU
PARAMETER
CONDITION
TEMP RANGE
MIN
TYP
MAX
UNITS
DC INPUT PARAMETERS
Offset Voltage
Full
1
7.5
mV
Power Supply Rejection
V
S
=
4.5 to
5.5V
+25
C
60
85
dB
Input Bias Current
V
CM
= 0V
Full
15
50
A
Input Offset Current
V
CM
= 0V
Full
0.2
5
A
Common-Mode Input Range
Full
2.0
2.5
V
Common-Mode Rejection
V
CM
=
2VDC
Full
80
dB
Differential Input Impedance
Full
13||1
k
||pF
Common-Mode Input Impedance
Full
2||1
M
||pF
Open-Loop Voltage Gain
V
O
=
2V, R
L
= 100
+25
C
100
dB
OUTPUT
Voltage Output
R
L
= 50
Full
2.0
2.5
V
Current Output
+25
C
40
80
mA
Full
40
60
mA
Short Circuit Current
Full
140
mA
Output Resistance,
Closed-Loop: Track-Mode
DC
Full
0.0001
Hold-Mode
DC
Full
0.01
DIGITAL INPUTS/OUTPUTS
TTL Input Levels
(1)
Hold Input Only
V
IL
Logic "LO"
Full
0
+1.0
V
V
IH
Logic "HI"
Full
+2.0
+5.0
V
Single-Ended ECL Input Levels
(2)
Hold/Hold and Lock/Lock Inputs
V
IL
Logic "LO"
Full
1.80
1.45
V
V
IH
Logic "HI"
Full
1.05
0.80
V
Common-Mode Input Voltages
Hold/Hold
Full
3
+5
V
Lock/Lock
Full
V
S
+3
V
Differential Input Voltages
Hold/Hold and Lock/Lock Inputs
Full
0.2
5.0
V
Digital Input Currents
I
IL
, Lock/Lock Inputs Only
ECL Logic "LO", V
IL
= 1.60V
Full
5
A
I
IL
, Hold/Hold Inputs Only
ECL or TTL Logic "LO"
Full
100
A
I
IH
, Lock/Lock Inputs Only
Logic "HI", V
IH
= 1.0V
Full
50
A
I
IH
, Hold/Hold Inputs Only
Full
10
A
Threshold Voltage Output
(3)
TTL
(4)
Full
1.1
1.5
1.9
V
ECL
(5)
V
S
= 5.2V
Full
1.40
1.10
V
TRACK-MODE RESPONSE
Closed-Loop Bandwidth
Gain = +1V/V
+25
C
100
200
MHz
Gain = +2V/V
+25
C
75
MHz
Gain = +5V/V
+25
C
20
MHz
Gain = +10V/V
+25
C
10
MHz
Full Power Response
1V Input, 3dB Output
Full
32
MHz
Slew Rate
(6)
G = +1, 2V Step
+25
C
140
200
V/
s
Full
120
200
V/
s
Acquisition Time to 1%
(7)
2V Step
Full
15
25
ns
0.1%
2V Step
Full
23
35
ns
0.012%
2V Step
Full
30
45
ns
0.012%
4V Step
Full
40
60
ns
Input Voltage Noise
1MHz to 100MHz
2.5
nV
Hz
Input Bias Current Noise
1MHz to 100MHz
2.5
pA/
Hz
Differential Gain
3.58MHz, V
O
= 0 to 0.7Vpp
0.005
%
Differential Phase
3.58MHz, V
O
= 0 to 0.7Vpp
0.005
Degrees
Spurious Free Dynamic Range
(5MHz)
V
O
=
1V
83
dBc
(10MHz)
V
O
=
1V
73
dBc
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN
assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject
to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize
or warrant any BURR-BROWN product for use in life support devices and/or systems.
NOTE: (1) Select (Pin 10) connected to +V
S
for TTL threshold voltage on Pin 11. (2) Select (Pin 10) connected to V
S
for ECL threshold voltage on Pin 11. (3) Output
voltage on pin 11. (4) Pin 10 (Select) connected to +V
S
. (5) Pin 10 (Select) connected to V
S
. (6) Slew rate is rate of change from 10% to 90% of a 2V output step.
(7) Acquisition time includes hold-to-track delay switch time. (8) Hold noise is proportional to the time in the hold mode. For example, if the hold time is 25ns, the
accumulated noise is 10
Vrms. (9) This is the maximum length of time the SHC605 can remain in the hold mode and still maintain a linear droop rate. (10) Select
(Pin 10) connected to +V
S
.
3
SHC605
SPECIFICATIONS
(CONT)
ELECTRICAL
At T
A
= +25
C,
V
S
=
5V, G = +1V/V, R
L
= 100
, C
L
= 5pF, and ECL Hold/Hold Inputs, unless otherwise noted.
SHC605AU
PARAMETER
CONDITION
TEMP RANGE
MIN
TYP
MAX
UNITS
TRACK-TO-HOLD SWITCHING
V
IN
= 0V
Aperture Delay
Full
1.7
ns
Aperture Jitter
Full
2.4
ps rms
Pedestal Offset
+25
C
5
20
mV
over Temperature
Full
5
25
mV
Transient Amplitude
Full
5
mV
Settling Time to 1mV
Full
8
15
ns
100
V
Full
15
ns
HOLD-MODE RESPONSE
Spurious Free Dynamic Range
(1MHz, 20MSPS)
V
O
=
1V
Full
78
90
dBc
(2MHz, 20MSPS)
V
O
=
1V
Full
74
86
dBc
(5MHz, 20MSPS)
V
O
=
1V
Full
65
77
dBc
(10MHz, 20MSPS)
V
O
=
1V
+25
C
60
dBc
(10MHz, 20MSPS)
V
O
=
0.5
+25
C
72
dBc
Hold Noise
(8)
400xt
H
V/s rms
Droop Rate
Full
1
8
mV/
s
Hold Time
(9)
Full
2
s
Feedthrough Rejection (20MHz)
+25
C
85
dB
POWER SUPPLY
Specified Operating Voltage
Full
4.50
5
5.50
V
Positive Supply Current
(10)
Full
34
39
mA
Negative Supply Current
(10)
Full
33
39
mA
Total Power Dissipation
Full
335
390
mW
TEMPERATURE RANGE
Specification
Ambient
Full
40
+85
C
Storage
55
+150
C
Thermal Resistance,
JA
Full
100
C/W
NOTE: (1) Select (Pin 10) connected to +V
S
for TTL threshold voltage on Pin 11. (2) Select (Pin 10) connected to V
S
for ECL threshold voltage on Pin 11. (3)
Output voltage on pin 11. (4) Pin 10 (Select) connected to +V
S
. (5) Pin 10 (Select) connected to V
S
. (6) Slew rate is rate of change from 10% to 90% of a 2V
output step. (7) Acquisition time includes hold-to-track delay switch time. (8) Hold noise is proportional to the time in the hold mode. For example, if the hold time
is 25ns, the accumulated noise is 10
Vrms. (9) This is the maximum length of time the SHC605 can remain in the hold mode and still maintain a linear droop rate.
(10) Select (Pin 10) connected to +V
S
.
4
SHC605
PIN CONFIGURATION
PIN DESCRIPTION
PIN #
SYMBOL
DESCRIPTION
1
+In
Non-Inverting Input
2
+V
S
+5V Supply
3
+V
S
+5V Supply
4
DGND
Digital Ground
5
AGND
Analog Ground
6
AGND
Analog Ground
7
AGND
Analog Ground
8
In
Inverting Input
9
V
OUT
Output Voltage
10
Select
+5V Selects TTL; 5V Selects ECL
11
Thresh/Hold
Logic threshold for single-ended
operation or complement Hold input for
differential operation
12
Hold
True Hold input
13
Lock
Complement Lock Input
14
Lock
True Lock input; Locks SHC605 in
Hold-mode regardless of Hold/Hold Inputs
15
V
S
5V Supply
16
V
S
5V Supply
ABSOLUTE MAXIMUM RATINGS
Supply .............................................................................................
7VDC
Input Voltage Range ............................................................................
5V
Differential Input Voltage ....................
5.5V (between +In and In inputs)
Storage Temperature Range .......................................... 40
C to +125
C
Lead Temperature (soldering, SOIC 3s) ....................................... +260
C
Output Short Circuit to Ground (+25
C) ................. Continuous to Ground
Junction Temperture (T
j
) ............................................................... +175
C
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degrada-
tion to complete device failure. Precision integrated circuits
may be more susceptible to damage because very small
parametric changes could cause the device not to meet its
published specifications.
PACKAGE
DRAWING
TEMPERATURE
PRODUCT
PACKAGE
NUMBER
(1)
RANGE
SHC605AU
SO-16 Surface-Mount
265
40
C to +85
C
PACKAGE/ORDERING INFORMATION
NOTE: (1) For detailed drawing and dimension table, please see end of data
sheet, or Appendix D of Burr-Brown IC Data Book.
+In
+V
S
+V
S
DGND
AGND
AGND
AGND
In
V
S
V
S
Lock
Lock
Hold
Thresh/Hold
Select
V
OUT
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
U Package
SO-16
5
SHC605
NON-INVERTING CLOSED-LOOP GAIN
vs SMALL SIGNAL BANDWIDTH
+1
+2
+5
+10
Non-Inverting Closed-Loop Gain (V/V)
200
150
100
50
0
Small Signal Bandwidth (MHz)
TYPICAL PERFORMANCE CURVES
At T
A
= +25
C,
V
S
=
5V, G = +1V/V, R
L
= 100
, C
L
= 5pF, and ECL Hold/Hold Inputs, unless otherwise noted.
OPEN-LOOP FREQUENCY RESPONSE (Track Mode)
Frequency (Hz)
100
1k
10k
100k
1M
10M
100M
1G
120
100
80
60
40
20
0
20
Open-Loop Voltage Gain (dB)
0
45
90
135
180
225
Gain
Phase
Phase Margin
65
Phase Shift ()
CLOSED-LOOP GAIN = +1V/V
vs FREQUENCY (Track Mode)
Frequency (MHz)
1
10
100
1000
0
1
2
3
4
5
6
7
Gain (dB)
INVERTING CLOSED-LOOP GAIN
vs SMALL SIGNAL BANDWIDTH
Small Signal Bandwidth (MHz)
Inverting Closed-Loop Gain (V/V)
1
2
5
10
100
80
60
40
20
0
ACQUISITION TIME
vs NON-INVERTING CLOSED-LOOP GAIN
Acquisition Time (ns)
Inverting Closed-Loop Gain (V/V)
+1
+2
+5
+10
150
125
100
75
50
25
0
0.01%
0.1%
1%
SNR vs INPUT FREQUENCY
SNR (dB)
75
70
65
60
Input Frequency (MHz)
DC
2.5
5
7.5
10
V
OUT
= 2.0Vpp
20MSPS
PDF 
ZIP