SHM-14 MURATA-PS | Alldatasheet

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INN O VAT IO N an d E X C ELL E N C E ® ® SHM-14 Ultra-Fast, 14-Bit Linear Monolithic Sample-Hold Amplifiers Figure 1. SHM-14 Functional Block Diagram

FEATURES

  • Fast acquisition time: 10ns to ±0.1% 20ns to ±0.024% 25ns to ±0.012%
  • ±0.0012% Nonlinearity
  • 65µV rms output noise
  • 250MHz small signal bandwidth
  • 70MHz full power bandwidth
  • –80dB feedthrough
  • 1ps Aperture jitter
  • 250mW power dissipation
  • Low cost GENERAL DESCRIPTION The SHM-14 is an extremely high-speed and accurate monolithic sample-and-hold amplifier designed for fast data acquisition applications. The SHM-14 is accurate (±0.5 LSB to 14-bits over the full military temperature range) and is very fast (10ns and 20ns acquisition times to accuracies of 10 and 12 bits respectively). With this high performance and a full power bandwidth of 70MHz, the SHM-14 is an ideal device for driving flash and high-resolution subranging A/D converters. A careful design optimizes the device for accuracy and speed over the full military temperature range. The droop rate is a low ±2mV/µs and can be further reduced by adding an optional external hold capacitor. The 30mA output current and guaranteed specifications for a 100 Ω load provide high drive capability. Operating from ± 5V supplies, the SHM-14 consumes only 250mW of power. The SHM-14 is built using a fast complementary bipolar process. The device is available in both military and industrial temperature ranges. The SHM-14 is packaged in a 16-pin plastic SOIC or in a 20-pin ceramic LCC.

1 NOT CONNECTED

2 –5V SUPPLY

3 NOT CONNECTED

4 ANALOG INPUT

5 NOT CONNECTED

6 DO NOT CONNECT

7 –5V SUPPLY

8 DO NOT CONNECT

9 DO NOT CONNECT

10 –5V SUPPLY

20 NOT CONNECTED

19 SAMPLE/HOLD

18 SAMPLE/HOLD

16 NOT CONNECTED

15 EXT. CAPACITOR

14 GROUND

11 ANALOG OUTPUT

INPUT/OUTPUT CONNECTIONS — CLCC

16 SAMPLE/HOLD

15 SAMPLE/HOLD

13 EXT. CAPACITOR

12 GROUND

9 ANALOG OUTPUT

1 –5V SUPPLY

2 DO NOT CONNECT

3 ANALOG INPUT

4 DO NOT CONNECT

5 –5V SUPPLY

7 DO NOT CONNECT

8 –5V SUPPLY PIN FUNCTION PIN FUNCTION INPUT/OUTPUT CONNECTIONS — SOIC DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.) • Tel: (508) 339-3000 Fax: (508) 339-6356 • For immediate assistance (800) 233-2765

® ® INPUTS MIN. TYP. MAX. UNITS Input Voltage Range –2.5 — +2.5 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 –2.5 — +2.5 Volts Output Current  ± 30 — — mA Output Impedance (dc) — 0.3 1 Ω Stable Capacitive Load — — 50 pF Nonlinearity (±1V) 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 — –72 — dB dc to 10MHz +25°C — –58 — dB –55 to +125°C — — –48 dB Acquisition Time (±0.012%, ±2V) –40 to +85°C — 25 — ns –55 to +125°C — 35 — ns Acquisition Time (±0.024%, ±2V) –40 to +85°C — 20 35 ns –55 to +125°C — 25 40 ns Acquisition Time (±0.05%, ±2V) –40 to +85°C — 19 30 ns –55 to +125°C — 20 35 ns ABSOLUTE MAXIMUM RATINGS PARAMETERS LIMITS UNITS +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. OUTPUTS PERFORMANCE FUNCTIONAL SPECIFICATIONS (Apply over the operating temperature range using a 100 Ω resistive load, 10pF capacitive load, ECL digital input levels, and ±5V nominal 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 Ω , 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 — 10 16 ns –55 to +125°C — 10 19 ns Hold Mode Settling (±0.012%) –40 to +85°C — 12 — ns –55 to +125°C — 15 — 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 16 ns –55 to +125°C — 6 16 ns Hold Mode Settling (±0.1%) –40 to +85°C — 5 12 ns –55 to +125°C — 5 12 ns Slew Rate ±300 ±430 — V/µs Full Power Bandwidth (±1V) 45 70 — MHz Small Signal Bandwidth 100 250 — MHz Output Noise, Hold Mode — 65 — µVrms Feedthrough (2V Step) — –80 — dB Droop Rate +25°C — ±2 ±6 mV/µs –40 to +85°C — ±5 ±15 mV/µs –55 to +125°C — ±10 ±30 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-14S, SHM-14L –40 — +85 °C SHM-14LM –55 — +125 °C Storage Temperature Range –65 — +150 °C Package Type SHM-14S 16-Pin plastic SOIC SHM-14L, SHM-14LM 20-Pin ceramic LCC Footnotes:  Short circuit protection at ±50mA. ENVIRONMENTAL POWER SUPPLY REQUIREMENTS PERFORMANCE (Cont.) MIN. TYP. MAX. UNITS

Figure 4. SHM-14 Evaluation Board Schematic Table 1. Optional External HOLD Capacitor

Figure 5. SHM-14 Evaluation Board Dimensions

1 GROUND

2 GROUND

3 GROUND

4 GROUND

5 ANALOG OUTPUT

13 HOLD

14 SAMPLE

20 ANALOG INPUT

® ® SHM-14 MECHANICAL DIMENSIONS INCHES (MM) E A 1 8 D C B F G H K J L

9 INCHES MILLIMETERS

SYMBOL MIN. MAX. MIN. MAX. A 0.402 0.412 10.21 10.46 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 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 BOTTOM VIEW A D FH B C E G (H x 45°

3 PLACES) (F x 45°)

MODEL NUMBER PACKAGE TEMPERATURE RANGE SHM-14S SOIC-16 –40 to +85°C SHM-14L CLCC-20 –40 to +85°C SHM-14LM CLCC-20 –55 to +125°C EVB-SHM14 Evaluation Board (with SHM-14LM) ® ® INNOV A TION and EX CELLENCE 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-0311 10/96 Contact DATEL for availability of high reliability models.

ORDERING INFORMATION

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