SHM-12 MURATA-PS | Alldatasheet

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Technical content

INN O VAT IO N an d E X C ELL E N C E ® ® SHM-12 Ultra-Fast, 12-Bit Linear Monolithic Sample-Hold Amplifiers

FEATURES

  • Fast acquisition time: 10ns to ±0.1% 15ns to ±0.024% 20ns to ±0.012%
  • ±0.006% Nonlinearity
  • 65µVrms output noise
  • 120MHz small signal bandwidth
  • 55MHz full power bandwidth
  • –80dB feedthrough
  • 1ps Aperture jitter
  • 250mW power dissipation
  • Low cost

Figure 1. SHM-12 Functional Block Diagram flash and high-resolution subranging A/D converters. specifications for a 100Ω load provide high drive capability. plastic SOIC or ceramic LCC.

3 NOT CONNECTED

4 ANALOG INPUT

6 DO NOT CONNECT

8 DO NOT CONNECT

19 SAMPLE/HOLD

18 SAMPLE/HOLD

16 GROUND

14 GROUND

11 ANALOG OUTPUT

® ® SHM-12 +5V Supply 0 to +6 Volts –5V Supply 0 to –6 Volts Analog Input +5V Supply –1 Volts –5V Supply +1 Volts Continuous Output Current ±50 mA Digital Inputs <Supply Voltages Volts Junction Temperature +175 °C Lead Temperature (10 seconds) +300 °C Output shorted to any supply will cause permanent damage. Acquisition Time (±0.1%, ±1V) –40 to +85°C — 10 20 ns –55 to +125°C — 10 20 ns Hold Mode Settling (±0.012%) –40 to +85°C — 10 — ns –55 to +125°C — 10 — ns Hold Mode Settling (±0.024%) –40 to +85°C — 7 18 ns –55 to +125°C — 7 18 ns Hold Mode Settling (±0.05%) –40 to +85°C — 6 15 ns –55 to +125°C — 6 15 ns Hold Mode Settling (±0.1%) –40 to +85°C — 5 12 ns –55 to +125°C — 5 12 ns Slew Rate ±220 ±350 — V/µs Full Power Bandwidth (±1V) 35 55 — MHz Small Signal Bandwidth 50 120 — MHz Output Noise, Hold Mode — 65 — µVrms Feedthrough (2V Step) — –80 — dB Droop Rate –40 to +85°C — ±2 ±5 mV/µs Power Supply Range +5V Supply +4.5 +5 +5.5 Volts –5V Supply –5.5 –5 –4.5 Volts Power Supply Current +5V Supply +17 +25 +30 mA –5V Supply –17 –25 –30 mA Power Dissipation 170 250 300 mW Power Supply Rejection Ratio 40 60 — dB Operating Temp. Range, Case SHM-12S, SHM-12L –40 — +85 °C SHM-12LM –55 — +125 °C Storage Temperature Range –65 — +150 °C Package Type SHM-12S 20-Pin plastic SOIC SHM-12L, SHM-12LM 20-Pin ceramic LCC ABSOLUTE MAXIMUM RATINGS PERFORMANCE (Cont.) MIN. TYP. MAX. UNITS POWER SUPPLY REQUIREMENTS ENVIRONMENTAL 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 (0.3Ω , 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. Footnotes:  Short circuit protection at ±50mA. PARAMETERS LIMITS UNITS OUTPUTS FUNCTIONAL SPECIFICATIONS (Apply over the operating temperature range using a 100 Ω resistive load, 10pF capacitive load, ECL digital input levels, a 47pF external hold capacitor, and ±5V nominal supplies, unless otherwise specified.) PERFORMANCE Input Voltage Range –1.5 — +1.5 Volts Input Impedance 0.3 1 — MΩ Digitals Inputs (Balanced ECL) Logic Levels Logic 1 –1.5 — +1.8 Volts Logic 0 –2.5 — +0.8 Volts Logic Loading Logic 1 — +10 +50 µA Logic 0 — –30 –150 µA Output Voltage Range –1.5 — +1.5 Volts Output Current  ± 30 — — mA Output Impedance (dc) — 0.3 1 Ω Stable Capacitive Load — — 50 pF Nonlinearity (±1V) +25°C — ±0.006 — % Sample Mode Offset +25°C — ±12 — mV –55 to +125°C — — ±30 mV Pedestal +25°C — ±3 — mV –55 to +125°C — — ±20 mV Gain Drift (±1V) –40 to +85°C — — ±20 ppm/°C –55 to +125°C — — ±30 ppm/°C Aperture Delay –40 to +85°C — 2 — ns –55 to +125°C — 2 — ns Aperture Jitter –40 to +85°C — 1 — ps rms –55 to +125°C — 1 — ps rms Harmonic Distortion (±1V) dc to 1MHz — –75 — dB dc to 10MHz +25°C — –62 — dB –55 to +125°C — — –54 dB Acquisition Time (±0.012%, ±1V) –40 to +85°C — 20 — ns –55 to +125°C — 30 — ns Acquisition Time (±0.024%, ±1V) –40 to +85°C — 15 30 ns –55 to +125°C — 25 40 ns Acquisition Time (±0.05%, ±1V) –40 to +85°C — 12 25 ns –55 to +125°C — 15 30 ns INPUTS MIN. TYP. MAX. UNITS

Figure 4. SHM-12 Evaluation Board Schematic Table 1. Optional External HOLD Capacitor

Figure 5. SHM-12 Evaluation Board Dimensions

1 GROUND

2 GROUND

3 GROUND

4 GROUND

5 ANALOG OUTPUT

13 HOLD

14 SAMPLE

20 ANALOG INPUT

E A 1 10 D C B F G H K L J TOP VIEW INCHES MILLIMETERS SYMBOL MIN. MAX. MIN. MAX. A 0.500 0.510 12.70 12.95 B 0.400 0.410 10.16 10.41 C 0.292 0.299 7.40 7.60 D 0.014 0.019 0.35 0.48 E 0.0500 BSC 1.27 BSC F 0.0039 0.0112 0.10 0.30 G 0° 8° 0° 8° H 0.020 0.040 0.51 1.02 J 0.097 0.104 2.46 2.64 K 0.010 0.020 0.25 0.51 L 0.0091 0.0125 0.23 0.32 BOTTOM VIEW A D FH B C E G (H x 45°

3 PLACES) (F x 45°)

ORDERING INFORMATION

MODEL NUMBER PACKAGE TEMPERATURE RANGE SHM-12S SOIC-20 –40 to +85°C SHM-12L CLCC-20 –40 to +85°C SHM-12LM CLCC-20 –55 to +125°C EVB-SHM12 Evaluation Board (with SHM-12LM) Contact DATEL for availability of high-reliability models. MECHANICAL DIMENSIONS INCHES SYMBOL MIN. MAX. MIN. MAX. A 0.064 0.100 1.63 2.54 B 0.045 0.055 1.14 1.40 C 0.075 REF 1.91 REF D 0.342 0.358 8.69 9.09 E 0.022 0.028 0.56 0.71 F 0.020 REF 0.51 G 0.050 BSC 1.27 BSC H 0.040 REF 1.02 MILLIMETERS IN N OVAT ION a nd E X C ELL E N C E ® ® DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark. DS-0310 10/96 ® ® SHM-12 DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Internet: www.datel.com E-mail:sales@datel.com Data Sheet Fax Back: (508) 261-2857 DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 1-34-60-01-01 DATEL GmbH München, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-354-2025 ISO 9001ISO 9001REGISTERED