LTC1860L Linear Technology, LTC1860L Datasheet
LTC1860L
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LTC1860L Summary of contents
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... LTC1860L/LTC1861L automatically power down be- tween conversions. These 12-bit switched capacitor suc- cessive approximation ADCs include sample-and-holds. The LTC1860L has a differential analog input with an external reference pin. The LTC1861L offers a software- selectable 2-channel MUX and an external reference pin on the MSOP version. ...
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... REF Analog Input Leakage Current C Input Capacitance (Notes 1, 2) Power Dissipation .............................................. 400mW Operating Temperature Range LTC1860LC/LTC1861LC ......................... LTC1860LI/LTC1861LI ...................... – 0.3V) CC Storage Temperature Range ................. – 150 C Lead Temperature (Soldering, 10 sec)................. 300 C + 0.3V ORDER PART NUMBER CONV ...
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... V Low Level Output Voltage OL I Hi-Z Output Leakage OZ I Output Source Current SOURCE I Output Sink Current SINK I Reference Current (LTC1860L SO-8, MSOP REF and LTC1861L MSOP) I Supply Current CC P Power Dissipation RECO E DED OPERATI G CO DITIO S full operating temperature range, otherwise specifications are T ...
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... TEMPERATURE ( C) 1860L/61L G02 MIN TYP MAX UNITS 3.7 4.66 150 120 35 120 the case of the LTC1860L SCK does SCK(MAX) Sleep Current vs Temperature 150kHz 2. 2.5V V REF –50 – 100 TEMPERATURE ( C) ...
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... CODE Change in Offset vs Temperature 1 150kHz 2.5V REF 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 –50 – TEMPERATURE ( C) LTC1860L/LTC1861L Reference Current vs Reference Voltage 150kHz 3. 100 125 0.5 0 1.0 1.5 2.0 2.5 REFERENCE VOLTAGE (V) 1860L/61L G05 Analog Input Leakage vs Temperature ...
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... IN 1860L/61L G16 CTIO S LTC1860L V (Pin 1): Reference Input. The reference input defines REF the span of the A/D converter and must be kept free of noise with respect to GND. + – (Pins 2, 3): Analog Inputs. These inputs must be free of noise with respect to GND. ...
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... CONV CONVERT BIAS AND CLK SHUTDOWN DATA IN + 12-BIT SAMPLING DATA OUT ADC – PIN NAMES IN PARENTHESES REFER TO LTC1861L V REF LTC1860L/LTC1861L is tied internally to this pin. REF (SDI) SCK SDO SERIAL PORT 12-BITS 1860L/61L BD 18601Lf 7 ...
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... If CONV is left high after this time, the LTC1860L goes into sleep mode drawing only leakage current. On the falling edge of CONV, the LTC1860L goes into sample mode and SDO is enabled. SCK synchronizes the data transfer with each bit being transmitted from SDO on the falling SCK edge ...
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... IN SDO ASIC, PLD, MPU, DSP OR SHIFT REGISTERS 4 5 GND CONV 1860 F03 Figure 3. LTC1860L with Rail-to-Rail Input Span . If the “–” input in differential mode The span of the A/D converter The voltage on the reference input minus REF ...
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... F tantalum. Keep the bypass capacitor leads as short as possible. Analog Inputs Because of the capacitive redistribution A/D conversion techniques used, the analog inputs of the LTC1860L/ LTC1861L have capacitive switching input current spikes. These current spikes settle quickly and do not cause a problem if source resistances are less than 200 or high speed op amps are used (e ...
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... LTC DWG # 05-08-1610) .010 – .020 45 .053 – .069 (1.346 – 1.752) 0 – 8 TYP .016 – .050 .014 – .019 (0.406 – 1.270) (0.355 – 0.483) TYP INCHES (MILLIMETERS) LTC1860L/LTC1861L 3.00 0.102 (.118 .004) 0.52 (NOTE 3) (.206 REF 3.00 0.102 4.90 0.15 (.118 .004) (1.93 .006) ...
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... LTC1860L/LTC1861L U TYPICAL APPLICATIO V AGND 1 F LTC6910-1 (IN TSOT-23 PACKAGE) COMPACTLY ADDS 40dB OF INPUT GAIN RANGE TO THE LTC1860L (IN MSOP 8-PIN PACKAGE). SINGLE 3V SUPPLY RELATED PARTS PART NUMBER SAMPLE RATE 12-Bit Serial I/O ADCs LTC1286/LTC1298 12.5ksps/11.1ksps LTC1400 400ksps LTC1401 200ksps LTC1402 2.2Msps LTC1404 600ksps ...