DS1856 Series

Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors and Password Protection

Manufacturer: Analog Devices Inc./Maxim Integrated

Catalog

Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors and Password Protection

Part	Features	Tolerance	Supplier Device Package	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	Interface	Configuration	Number of Circuits	Temperature Coefficient (Typ)	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Taps	Memory Type	Resistance (Ohms) [custom]	Package / Case	Taper	Resistance (Ohms)	Package / Case [y]	Package / Case [y]
Analog Devices Inc./Maxim Integrated DS1856B-M50/T&R	Temperature Sensor	20 %	16-CSBGA (4x4)	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-LBGA CSPBGA	Linear
Analog Devices Inc./Maxim Integrated DS1856E-020+		25 %	16-TSSOP	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile		16-TSSOP	Linear	20 kOhms	4.4 mm	0.173 in
Analog Devices Inc./Maxim Integrated DS1856B-050+	Temperature Sensor	20 %	16-CSBGA (4x4)	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-LBGA CSPBGA	Linear
Analog Devices Inc./Maxim Integrated DS1856B-M50	Temperature Sensor	20 %	16-CSBGA (4x4)	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-LBGA CSPBGA	Linear
Analog Devices Inc./Maxim Integrated DS1856B-050+T&R	Temperature Sensor	20 %	16-CSBGA (4x4)	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-LBGA CSPBGA	Linear
Analog Devices Inc./Maxim Integrated DS1856E-M50+	Temperature Sensor	20 %	16-TSSOP	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-TSSOP	Linear		4.4 mm	0.173 in
Analog Devices Inc./Maxim Integrated DS1856E-050+	Temperature Sensor	20 %	16-TSSOP	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-TSSOP	Linear		4.4 mm	0.173 in
Analog Devices Inc./Maxim Integrated DS1856E-020+T&R		25 %	16-TSSOP	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile		16-TSSOP	Linear	20 kOhms	4.4 mm	0.173 in
Analog Devices Inc./Maxim Integrated DS1856B-M50+T&R	Temperature Sensor	20 %	16-CSBGA (4x4)	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-LBGA CSPBGA	Linear
Analog Devices Inc./Maxim Integrated DS1856B-050/T&R	Temperature Sensor	20 %	16-CSBGA (4x4)	-40 C	95 °C	Surface Mount	I2C	Rheostat	2	50 ppm/°C	2.85 V	5.5 V	256	Non-Volatile	50 kOhms	16-LBGA CSPBGA	Linear

Catalog

Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors and Password Protection

Description

The DS1856M dual, temperature-controlled, nonvolatile (NV) variable resistors with three monitors consists of two 256-position, linear, variable resistors; three analog monitor inputs (MON1, MON2, MON3); and a direct-to-digital temperature sensor. The device provides an ideal method for setting and temperature-compensating bias voltages and currents in control applications using minimal circuitry. The variable resistor settings are stored in EEPROM memory and can be accessed over the 2-wire serial bus.The DS1856M includes 128 bytes of EEPROM memory at A2h slave address, Table 00/01. The DS1856M also includes three-levels of password protection. The DS1856-01 includes 256 bytes of A0h EEPROM memory. The DS1856B-M50+ and DS1856E-M50+ are drop-in replacements for the DS1856B-050+ and DS1866E-050+, respectively. The enhancements include 256 bytes of EEPROM at A0h; selectable MON2, MON3 references; and a 13-bit ADC. These are backward compatible by default with the DS1856B-050+/DS1856E-050+.ApplicationsDiagnostic MonitoringInstrumentation and Industrial ControlsOptical TransceiversOptical TranspondersRF Power Amps