Datenblatt-Suchmaschine für elektronische Bauteile |
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AD588JQ Datenblatt(PDF) 5 Page - Analog Devices |
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AD588JQ Datenblatt(HTML) 5 Page - Analog Devices |
5 / 12 page REV. D AD588 –5– Figure 2b shows GAIN and BALANCE trims in a +5 V and –5 V tracking configuration. A 100 k Ω 20-turn potentiometer is used for each trim. The potentiometer for GAIN trim is con- nected between Pin 6 (VHIGH) and Pin 8 (VLOW) with the wiper connected to Pin 5 (GAIN ADJ). The potentiometer is adjusted to produce exactly 10 V between Pin 1 and Pin 15, the amplifier outputs. The BALANCE potentiometer, also connected between Pin 6 and Pin 8 with the wiper to Pin 12 (BAL ADJ), is then adjusted to center the span from +5 V to –5 V. Trimming in other configurations works in exactly the same manner. When producing +10 V and +5 V, GAIN ADJ is used to trim +10 V and BAL ADJ is used to trim +5 V. In the –10 V and –5 V configuration, GAIN ADJ is again used to trim the magnitude of the span, –10 V, while BAL ADJ is used to trim the center tap, –5 V. In single output configurations, GAIN ADJ is used to trim outputs utilizing the full span (+10 V or –10 V), while BAL ADJ is used to trim outputs using half the span (+5 V or –5 V). Input impedance on both the GAIN ADJ and BAL ADJ pins is approximately 150 k Ω. The GAIN ADJUST trim network effectively attenuates the 10 V across the trim potentiometer by a factor of about 1500 to provide a trim range of –3.5 mV to +7.5 mV with a resolution of approximately 550 µV/turn (20-turn potentiometer). The BAL ADJ trim network attenu- ates the trim voltage by a factor of about 1400, providing a trim range of ±4.5 mV with resolution of 450 µV/turn. R3 RB R1 R2 R4 R5 R6 –VS +VS A1 A4 AD588 A3 A2 SYSTEM GROUND +10V +15V +5V –15V SYSTEM GROUND 0.1 F 0.1 F Figure 2a. +10 V Output R3 RB R1 R2 R4 R5 R6 –VS +VS A1 A4 AD588 A3 A2 SYSTEM GROUND +5V –15V –5V –15V SYSTEM GROUND 0.1 F 0.1 F 100k 20T BALANCE ADJUST 100k 20T GAIN ADJUST +15V NOISE REDUCTION 1 F Figure 2b. +5 V and –5 V Outputs Table I. Pin Connections Connect Buffered Pin 10 Unbuffered * Output on Pins Output Buffered Output on Pins Range to Pin: –10 V –5 V 0 V +5 V +10 V Connections –10 V –5 V 0 V +5 V +10 V +10 V 8 8 11 6 11 to 13, 14 to 15 15 6 to 4, and 3 to 1 1 –5 V or +5 V 11 8 11 6 8 to 13, 14 to 15, 15 6 to 4, and 3 to 1 1 –10 V 6 8 11 6 8 to 13, 14 to 15, 15 11 to 4, and 3 to 1 1 +5 V 11 6 6 to 4 and 3 to 1 1 –5 V118 8 to 13 and 14 to 15 15 *Unbuffered outputs should not be loaded. |
Ähnliche Teilenummer - AD588JQ |
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Ähnliche Beschreibung - AD588JQ |
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