LTC1609 UUWUAPPLICATIO S I FOR ATIOWITH TRIMINPUT RANGEWITHOUT TRIM(ADJUST OFFSET FIRST AT 0V, THEN ADJUST GAIN) LTC1609 LTC1609 R1 R1 IN IN 200Ω 200Ω AGND1 AGND1 100Ω 100Ω VIN R2 33.2k VIN R2 IN IN 5V 0V TO 10V R3 OFFSET IN 50k R3 33.2k IN TRIM + 2.2µF CAP CAP 5V 576k GAIN + + REF 50k TRIM + REF 2.2µF 2.2µF 2.2µF AGND2 AGND2 LTC1609 LTC1609 R1 R1 IN IN 200Ω 200Ω AGND1 AGND1 100Ω 100Ω R2 5V 33.2k R2 IN IN OFFSET 0V TO 5V 50k R3IN TRIM V R3 33.2k VIN IN IN CAP CAP 5V + 576k GAIN + + REF 2.2µF 50k TRIM + REF 2.2µF 2.2µF 2.2µF AGND2 AGND2 LTC1609 LTC1609 200Ω 200Ω VIN R1 V R1 IN IN IN AGND1 AGND1 100Ω 100Ω R2 R2 IN IN 0V TO 4V R3 R3 IN IN 33.2k 33.2k + CAP CAP 5V 5V 2.2µF 576k OFFSET GAIN + + REF 50k 50k REF TRIM TRIM + 2.2µF 2.2µF 2.2µF AGND2 AGND2 1609 F03a Figure 3a. Offset/Gain Circuits for Unipolar Input RangesTable 1a. Analog Input Range Connections for Figure 3aANALOG INPUTCONNECT R1INCONNECT R2INCONNECT R3ININPUTRANGEVIA 200 Ω TOVIA 100 Ω TOTOIMPEDANCE 0V to 10V AGND VIN AGND 13.3kΩ 0V to 5V AGND AGND VIN 10kΩ 0V to 4V VIN AGND VIN 10.7kΩ 1609fa 10