SSM2017 AD | Alldatasheet

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Tel: 617/329-4700 World Wide Web Site: http://www.analog.com Fax: 617/326-8703 © Analog Devices, Inc., 1997 FUNCTIONAL BLOCK DIAGRAM +IN –IN OUT 5kΩ REFERENCE RG 1 SSM2017 RG 2 5kΩ 5kΩ 5kΩ 5kΩ 5kΩ PIN CONNECTIONS Epoxy Mini-DIP (P Suffix) REFERENCE TOP VIEW (Not to Scale) –IN +IN OUT RG 2RG 1 SSM2017 16-Pin Wide Body SOL (S Suffix) TOP VIEW (Not to Scale) NC NC –IN +IN OUT REFERENCE NC NC NC NC RG 1 RG 2 NC NC SSM2017 NC = NO CONNECT TOP VIEW (Not to Scale)

FEATURES

Excellent Noise Performance: 950 pV/ √Hz or 1.5 dB Noise Figure Ultralow THD: < 0.01% @ G = 100 Over the Full Audio Band Wide Bandwidth: 1 MHz @ G = 100 High Slew Rate: 17 V/ ms typ Unity Gain Stable True Differential Inputs Subaudio 1/f Noise Corner 8-Pin Mini-DIP with Only One External Component Required Very Low Cost Extended Temperature Range: –40 8C to +85 8C

APPLICATIONS

REV. C Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. GENERAL DESCRIPTION The SSM2017 is a latest generation audio preamplifier, combin- ing SSM preamplifier design expertise with advanced process- ing. The result is excellent audio performance from a self- contained 8-pin mini-DIP device, requiring only one external gain set resistor or potentiometer. The SSM2017 is further en- hanced by its unity gain stability. Key specifications include ultralow noise (1.5 dB noise figure) and THD (<0.01% at G = 100), complemented by wide band- width and high slew rate. Applications for this low cost device include microphone pream- plifiers and bus summing amplifiers in professional and con- sumer audio equipment, sonar, and other applications requiring a low noise instrumentation amplifier with high gain capability.

SSM2017–SPECIFICATIONS (VS = 615 V and –40 8C ≤ TA ≤ +858C, unless otherwise noted. Typical speci- fications apply at TA = +258C.) Parameter Symbol Conditions Min Typ Max Units DISTORTION PERFORMANCE T A = +25°C VO = 7 V rms RL = 5 kΩ Total Harmonic Distortion Plus Noise THD+N G = 1000, f = 1 kHz 0.012 % G = 100, f = 1 kHz 0.005 % G = 10, f = 1 kHz 0.004 % G = 1, f = 1 kHz 0.008 % NOISE PERFORMANCE Input Referred Voltage Noise Density e n f = 1 kHz, G = 1000 0.95 nV/ √Hz f = 1 kHz; G = 100 1.95 nV/ √Hz f = 1 kHz; G = 10 11.83 nV/ √Hz f = 1 kHz; G = 1 107.14 nV/ √Hz Input Current Noise Density i n f = 1 kHz, G = 1000 2 pA/ √Hz DYNAMIC RESPONSE Slew Rate SR G = 10 10 17 V/ µs RL = 4.7 kΩ CL = 50 pF TA = +25°C Small Signal Bandwidth BW –3 dB G = 1000 200 kHz G = 100 1000 kHz G = 10 2000 kHz G = 1 4000 kHz INPUT Input Offset Voltage V IOS 0.1 1.2 mV Input Bias Current I B VCM = 0 V 6 25 µA Input Offset Current Ios V CM = 0 V ± 0.002 ± 2.5 µA Common-Mode Rejection CMR V CM = ± 8 V G = 1000 80 112 dB G = 100 60 92 dB G = 10 40 74 dB G = 1, T A = +25°C2 6 5 4 d B G = 1, TA = – 40°C to +85°C2 0 5 4 d B Power Supply Rejection PSR V S = ± 6 V to ± 18 V G = 1000 80 124 dB G = 100 60 118 dB G = 10 40 101 dB G = 1 26 82 dB Input Voltage Range IVR ± 8V Input Resistance R IN Differential, G = 1000 1 M Ω G = 1 30 M Ω Common Mode, G = 1000 5.3 M Ω G = 1 7.1 M Ω OUTPUT Output Voltage Swing V O RL = 2 kΩ ; TA = +25°C ± 11.0 ± 12.3 V Output Offset Voltage V OOS –40 500 mV Minimum Resistive Load Drive T A = +25°C2 k Ω TA = –40°C to +85°C 4.7 k Ω Maximum Capacitive Load Drive 50 pF Short Circuit Current Limit I SC Output-to-Ground Short ± 50 mA Output Short Circuit Duration 10 sec GAIN Gain Accuracy RG = 10 kΩ TA = +25°C G – 1 R G = 10 Ω , G = 1000 0.25 1 dB RG = 101 Ω , G = 100 0.20 1 dB RG = 1.1 kΩ , G = 10 0.20 1 dB RG = \, G = 1 0.05 0.5 dB Maximum Gain G 70 dB REFERENCE INPUT Input Resistance 10 k Ω Voltage Range ± 8V Gain to Output 1 V/V POWER SUPPLY Supply Voltage Range V S ± 6 ± 22 V Supply Current I SY VCM = 0 V, RL = \ ± 10.6 ± 14.0 mA Specifications subject to change without notice. REV. C–2–

Figure 21. Bandwidth of the SSM2017 for Various Values directly proportional to the square root of the collector current. voltage and current noise is insignificant. et = source resistance thermal noise. virtually transparent to the user.

10 N C

wound resistors are recommended for best results. that of the internal resistors (20 ppm/ °C typ). bandwidth of the SSM2017 exceeds 4 MHz.

puts are summed together to produce a high effective noise gain. grounds sitting about 0.55 V below ground. A2 forms a “servo” amplifier feeding the SSM2017’s inputs. then Pins 2 and 3 may be directly grounded. Figure 24. Bus Summing Amplifier Dimensions shown in inches and (mm).