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S HM-14
INPUTS
MIN.
TYP.
MAX.
UNITS
Input Voltage Range
Input Impedance
Digitals Inputs
(Balanced ECL)
Logic Levels
Logic 1
Logic 0
Logic Loading
Logic 1
Logic 0
–2.5
0.3
—
1
+2.5
—
Volts
M
–1.5
–2.5
—
—
+1.8
+0.8
Volts
Volts
—
—
+10
–30
+50
–150
μA
μA
Output Voltage Range
Output Current
Output Impedance
(dc)
Stable Capacitive Load
–2.5
± 30
—
—
—
—
0.3
—
+2.5
—
1
50
Volts
mA
pF
Nonlinearity
(±1V)
+25°C
–40 to +85°C
–55 to +125°C
Sample Mode Offset
+25°C
–40 to +85°C
–55 to +125°C
Pedestal
+25°C
–40 to +85°C
–55 to +125°C
Gain
, +25°C
Gain Drift
(±1V)
–40 to +85°C
–55 to +125°C
Aperture Delay
–40 to +85°C
–55 to +125°C
Aperture Jitter
–40 to +85°C
–55 to +125°C
Harmonic Distortion
(±1V)
dc to 1MHz
dc to 10MHz
+25°C
–40 to +85°C
–55 to +125°C
Acquisition Time
(±0.012%, ±2V)
–40 to +85°C
–55 to +125°C
Acquisition Time
(±0.024%, ±2V)
–40 to +85°C
–55 to +125°C
Acquisition Time
(±0.05%, ±2V)
–40 to +85°C
–55 to +125°C
—
—
—
±0.0012
—
—
—
%
%
%
±0.002
±0.003
—
—
—
±12
—
—
—
±20
±30
mV
mV
mV
—
—
—
±3
—
—
—
±20
±20
—
mV
mV
mV
V/V
+0.98
+0.995
—
—
—
—
±20
±30
ppm/°C
ppm/°C
—
—
2
2
—
—
ns
ns
—
—
1
1
—
—
ps rms
ps rms
—
–72
—
dB
—
—
—
–58
—
—
—
–50
–48
dB
dB
dB
—
—
25
35
—
—
ns
ns
—
—
20
25
35
40
ns
ns
—
—
19
20
30
35
ns
ns
ABSOLUTE MAXIMUM RATINGS
PARAMETERS
+5V Supply
–5V Supply
Analog Input
LIMITS
0 to +6
0 to –6
+5V Supply –1
–5V Supply +1
±50
<Supply Voltages
+175
+300
UNITS
Volts
Volts
Volts
Volts
mA
Volts
°C
°C
Continuous Output Current
Digital Inputs
Junction Temperature
Lead Temperature
(10 seconds)
Output shorted to any supply will cause permanent damage.
OUTPUTS
PERFORMANCE
FUNCTIONAL SPECIFICATIONS
(Apply over the operating temperature range using a 100
resistive load, 10pF
capacitive load, ECL digital input levels, and ±5V nomnal supplies, unless specified.)
TECHNICAL NOTES
The SHM-14 employs an open loop architecture in order to
achieve its superior high-speed characteristics. The first stage
buffer amplifier, which charges the hold capacitor, incorporates the
sample-and-hold switch into its design. This technique allows for a
fast acquisition time which is not limited by slew current like the
traditional Schottky diode bridge switch. The output amplifier uses
a closed loop voltage feedback design which provides a low (0.3
,
typical) output impedance. Gain and linearity are not affected by
heavy loads.
The design has been optimized to achieve the high accuracy associ-
ated with fast transient responses over the full military temperature
range. During the track-to-hold transient, the integral nonlinearity is
not affected and the pedestal remains constant over the full ±2.5V
input range.
An external hold capacitor can be added to the 15pF internal hold
capacitor to obtain a lower droop rate (the droop rate is propor-
tional to the inverse of the total hold capacitor value) without
increasing transient response times by more than few ns. Settling
and acquisition times are typically increased by 5ns and 10ns
respectively for 47pF and 100pF external hold capacitors. The
external hold capacitor should not exceed 100pF.
Acquisition Time
(±0.1%, ±2V)
–40 to +85°C
–55 to +125°C
Hold Mode Settling
(±0.012%)
–40 to +85°C
–55 to +125°C
Hold Mode Settling
(±0.024%)
–40 to +85°C
–55 to +125°C
Hold Mode Settling
(±0.05%)
–40 to +85°C
–55 to +125°C
Hold Mode Settling
(±0.1%)
–40 to +85°C
–55 to +125°C
Slew Rate
Full Power Bandwidth
(±1V)
Small Signal Bandwidth
Output Noise, Hold Mode
Feedthrough
(2V Step)
Droop Rate
+25°C
–40 to +85°C
–55 to +125°C
—
—
10
10
16
19
ns
ns
—
—
12
15
—
—
ns
ns
—
—
7
7
18
18
ns
ns
—
—
6
6
16
16
ns
ns
—
—
5
5
12
12
—
—
—
—
—
ns
ns
V/μs
MHz
MHz
μVrms
dB
±300
45
100
—
—
±430
70
250
65
–80
—
—
—
±2
±5
±10
±6
±15
±30
mV/μs
mV/μs
mV/μs
Power Supply Range
+5V Supply
–5V Supply
Power Supply Current
+5V Supply
–5V Supply
Power Dissipation
Power Supply Rejection Ratio
+4.5
–5.5
+5
–5
+5.5
–4.5
Volts
Volts
+17
–17
170
40
+25
–25
250
60
+30
–30
300
—
mA
mA
mW
dB
Operating Temp. Range, Case
SHM-14S, SHM-14L
SHM-14LM
Storage Temperature Range
Package Type
SHM-14S
SHM-14L, SHM-14LM
–40
–55
–65
—
—
—
+85
+125
+150
°C
°C
°C
16-Pin plastic SOIC
20-Pin ceramc LCC
Footnotes:
Short circuit protection at ±50mA.
ENVIRONMENTAL
POWER SUPPLY REQUIREMENTS
PERFORMANCE (Cont.)
MIN.
TYP.
MAX.
UNITS
2