AD8497CRMZ
Analog Devices Inc.
Category: Temperature Sensors
The AD8494/AD8495/AD8496/AD8497 are precision instrumentation amplifiers with thermocouple cold junction compensators on an integrated circuit. They produce a high level (5 mV/°C) output directly from a thermocouple signal by combining an ice point reference with a precalibrated amplifier. They can be used as standalone thermometers or as switched output setpoint controllers using either a fixed or remote setpoint control.The AD8494/AD8495/AD8496/AD8497 can be powered from a single-ended supply (less than 3 V) and can measure temperatures below 0°C by offsetting the reference input. To minimize self-heating, an unloaded AD849x typically operates with a total supply current of 180 μA, but it is also capable of delivering in excess of ±5 mA to a load.The AD8494 and AD8496 are precalibrated by laser wafer trimming to match the characteristics of J type (iron-constantan) thermocouples; the AD8495 and AD8497 are laser trimmed to match the characteristics of K type (chromel-alumel) thermo-couples. See Table 1 on the data sheet for the optimized ambient temperature range of each part.The AD8494/AD8495/AD8496/AD8497 allow a wide variety of supply voltages. With a 5 V single supply, the 5 mV/°C output allows the devices to cover nearly 1000 degrees of a thermo-couple’s temperature range.The AD8494/AD8495/AD8496/AD8497 work with 3 V supplies, allowing them to interface directly to lower supply ADCs. They can also work with supplies as large as 36 V in industrial systems that require a wide common-mode input range.Product Highlights Complete, precision laser wafer trimmed thermocouple signal conditioning system in a single IC package. Flexible pinout provides for operation as a setpoint controller or as a standalone Celsius thermometer. Rugged inputs withstand 4 kV ESD and provide over-voltage protection (OVP) up to VS ± 25 V. Differential inputs reject common-mode noise on the thermocouple leads. Reference pin voltage can be offset to measure 0°C on single supplies. Available in a small, 8-lead MSOP that is fully RoHS compliant. div#landing_page_sec ul { padding:0 0 15px 10px; margin:0px; } div#landing_page_sec li { padding:3px 0 2px 20px; margin:0px; list-style:none; background:url(/static/imported-files/embedded_html/images/li_img.gif) no-repeat 7px 9px; display:block; color:#000000; font-family: Arial, Helvetica, sans-serif; }Applications K type thermocouple temperature measurement Setpoint controller Celsius thermometer Universal cold junction compensator White goods (oven, stove top) temperature measurements Exhaust gas temperature sensing Catalytic converter temperature sensing
* $12.00 - * $12.28Distributors
Distributor | SKU | Stock | MOQ | 1 | 10 | 50 | 100 | 1000 | 10000 | Purchase | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DigiKey | AD8497CRMZ-R7TR-ND | 0 | 1000 | $11.15 | $10.07 | $9.60 | $8.34 | $7.29 | $7.29 | Buy | ||
Analog Devices Inc | AD8497CRMZ | $12.20 | $11.21 | $10.75 | $9.47 | $8.22 | $8.22 | Buy | ||||
Arrow North American Components | AD8497CRMZ | 0 | 50 | $0.00 | $7.34 | $6.14 | $6.14 | Buy | ||||
element14 APAC | AD8497CRMZ | 66 | 1 | * $12.28 | * $11.29 | * $9.91 | * $8.90 | * $8.64 | * $8.64 | Buy | ||
Farnell | AD8497CRMZ | 66 | 1 | * $11.48 | * $10.56 | * $9.40 | * $8.45 | * $8.20 | * $8.20 | Buy | ||
Mouser Electronics | 584-AD8497CRMZ | 3525 | 1 | $13.21 | $11.03 | $9.37 | $8.42 | $7.49 | $7.32 | Buy | ||
Newark | AD8497CRMZ | 96 | 1 | $11.85 | $10.89 | $9.82 | $9.20 | $9.20 | $9.20 | Buy | ||
Win Source | AD8497CRMZ | 8300 | 2 | Buy |
Technical Specifications
ROHS Compliance | Compliant |