EVB-SHM12 ETC [List of Unclassifed Manufacturers], EVB-SHM12 Datasheet - Page 2

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EVB-SHM12

Manufacturer Part Number
EVB-SHM12
Description
Ultra-Fast, 12-Bit Linear Monolithic Sample-Hold Amplifiers
Manufacturer
ETC [List of Unclassifed Manufacturers]
Datasheet
SHM-12
ABSOLUTE MAXIMUM RATINGS
FUNCTIONAL SPECIFICATIONS
(Apply over the operating temperature range using a 100 resistive load, 10pF
capacitive load, ECL digital input levels, a 47pF external hold capacitor, and ±5V
nominal supplies, unless otherwise specified.)
PARAMETERS
INPUTS
PERFORMANCE
OUTPUTS
Input Voltage Range
Input Impedance
Digitals Inputs (Balanced ECL)
Logic Levels
Logic Loading
Output Voltage Range
Output Current •
Output Impedance (dc)
Stable Capacitive Load
Nonlinearity (±1V)
Sample Mode Offset
Pedestal
Gain, +25°C
Gain Drift (±1V)
Aperture Delay
Aperture Jitter
Harmonic Distortion (±1V)
Acquisition Time (±0.012%, ±1V)
Acquisition Time (±0.024%, ±1V)
Acquisition Time (±0.05%, ±1V)
+5V Supply
–5V Supply
Analog Input
Continuous Output Current
Digital Inputs
Junction Temperature
Lead Temperature (10 seconds)
Logic 1
Logic 0
Logic 1
Logic 0
+25°C
–40 to +85°C
–55 to +125°C
+25°C
–40 to +85°C
–55 to +125°C
+25°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
dc to 1MHz
dc to 10MHz
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
+25°C
–40 to +85°C
–55 to +125°C
Output shorted to any supply will cause permanent damage.
+0.98
MIN.
–1.5
–1.5
–2.5
–1.5
± 30
<Supply Voltages
0.3
+5V Supply –1
–5V Supply +1
LIMITS
0 to +6
0 to –6
+175
+300
±50
±0.006
+0.995
TYP.
±12
+10
–30
–75
–62
0.3
±3
20
30
15
25
12
15
1
2
2
1
1
±0.024
±0.024
MAX. UNITS
–150
+1.5
+1.8
+0.8
+1.5
+50
±20
±30
±20
±20
±20
±30
–56
–54
50
30
40
25
30
1
UNITS
Volts
Volts
Volts
Volts
Volts
mA
°C
°C
ppm/°C
ppm/°C
ps rms
ps rms
Volts
Volts
Volts
Volts
M
V/V
µ A
µ A
mA
mV
mV
mV
mV
mV
mV
pF
dB
dB
dB
dB
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
2
Footnotes:
• Short circuit protection at ±50mA.
TECHNICAL NOTES
The SHM-12 employs an open loop architecture to achieve its
superior high-speed characteristics. The first stage buffer
amplifier incorporates the sample-and-hold switch. This 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
associated with fast transient responses over the military tem-
perature range. During the track-to-hold transient, the integral
nonlinearity is not affected and the pedestal remains constant
over the full ±1.5V input range.
An innovative circuit design ensures an extremely low droop rate.
An external hold capacitor can be added to the 15pF internal
hold capacitor to obtain a lower droop rate (the droop rate is pro-
portional to the inverse of the total hold capacitor value) without
increasing transient response times by more than a few ns. The
external hold capacitor should not exceed 100pF.
PERFORMANCE (Cont.)
ENVIRONMENTAL
POWER SUPPLY REQUIREMENTS
Acquisition Time (±0.1%, ±1V)
Hold Mode Settling (±0.012%)
Hold Mode Settling (±0.024%)
Hold Mode Settling (±0.05%)
Hold Mode Settling (±0.1%)
Slew Rate
Full Power Bandwidth (±1V)
Small Signal Bandwidth
Output Noise, Hold Mode
Feedthrough (2V Step)
Droop Rate
Power Supply Range
Power Supply Current
Power Dissipation
Power Supply Rejection Ratio
Operating Temp. Range, Case
Storage Temperature Range
Package Type
+5V Supply
–5V Supply
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
–40 to +85°C
–55 to +125°C
+25°C
–40 to +85°C
–55 to +125°C
+5V Supply
–5V Supply
SHM-12S, SHM-12L
SHM-12LM
SHM-12S
SHM-12L, SHM-12LM
MIN.
±220
+4.5
–5.5
+17
–17
170
–40
–55
–65
35
50
40
®
20-Pin ceramic LCC
20-Pin plastic SOIC
TYP.
±350
±0.5
±2.5
120
–80
+25
–25
250
10
10
10
10
55
65
±2
+5
–5
60
7
7
6
6
5
5
MAX. UNITS
±1.5
+125
+150
+5.5
–4.5
±10
+30
+85
–30
300
±5
20
20
18
18
15
15
12
12
µVrms
mV/µs
mV/µs
mV/µs
V/µs
Volts
Volts
MHz
MHz
mW
mA
mA
dB
dB
°C
°C
°C
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
®

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