ltc2640-lz8 Linear Technology Corporation, ltc2640-lz8 Datasheet
ltc2640-lz8
Related parts for ltc2640-lz8
ltc2640-lz8 Summary of contents
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... TSOT-23 package. It has a rail-to-rail output buffer that is guaranteed monotonic. The LTC2640-L has a full-scale output of 2.5V, and operates from a single 2.7V to 5.5V supply. The LTC2640-H has a full-scale output of 4.096V, and operates from a 4.5V to 5.5V supply ppm/°C reference output is available at the REF pin. ...
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... CC CLR, CS/LD, REF_SEL, SCK, SDI ................. –0. REF ......................... –0.3V to Min(V OUT Operating Temperature Range LTC2640C ................................................ 0°C to 70°C LTC2640I.............................................. –40°C to 85°C LTC2640H (Note 3) ............................ –40°C to 125°C PIN CONFIGURATION LTC2640-Z TOP VIEW CS/LD 1 SCK 2 SDI 3 GND 4 TS8 PACKAGE 8-LEAD PLASTIC TSOT-23 = 150° ...
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... ORDER INFORMATION LTC2640 A C TS8 – Consult LTC Marketing for information on non-standard lead based fi nish parts. For more information on lead free part marking, go to: For more information on tape and reel specifi cations, go to: #TRM PBF LEAD FREE DESIGNATOR ...
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... LTDHV 2.5V • (4095/4096) LTC2640-LM10 LTDHZ 2.5V • (1023/1024) LTC2640-LM8 LTDJF 2.5V • (255/256) LTC2640-LZ12 LTDHW 2.5V • (4095/4096) LTC2640-LZ10 LTDJB 2.5V • (1023/1024) LTC2640-LZ8 LTDJG 2.5V • (255/256) LTC2640-HM12 LTDHX 4.096V • (4095/4096) LTC2640-HM10 LTDJC 4.096V • (1023/1024) LTC2640-HM8 LTDJH 4.096V • (255/256) LTC2640-HZ12 LTDHY 4.096V • (4095/4096) ...
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... ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T LTC2640-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2640A-LM12/-LZ12 (V SYMBOL PARAMETER CONDITIONS DC Performance Resolution Monotonicity V = 3V, Internal Ref. (Note 4) CC DNL Differential V = 3V, Internal Ref. (Note 4) CC Nonlinearity INL Integral V = 3V, Internal Ref. (Note 4) ...
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... LTC2640 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T LTC2640-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2640A-LM12/-LZ12 (V SYMBOL PARAMETER Reference Input Input Voltage Range Resistance Capacitance I Reference Current, Power Down Mode REF Reference Output Output Voltage Reference Temperature Coeffi cient ...
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... TIMING CHARACTERISTICS range, otherwise specifi cations are at T LTC2640-LM12/-LM10/-LM8/-LZ12/-LZ10/-LZ8, LTC2640A-LM12/-LZ12 (V SYMBOL PARAMETER t SDI Valid to SCK Setup 1 t SDI Valid to SCK Hold 2 t SCK High Time 3 t SCK Low Time 4 CS/LD Pulse Width t 5 LSB SCK High to CS/LD High ...
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... LTC2640 ELECTRICAL CHARACTERISTICS temperature range, otherwise specifi cations are at T LTC2640-HM12/-HM10/-HM8/-HZ12/-HZ10/-HZ8, LTC2640A-HM12/-HZ12 (V SYMBOL PARAMETER V DAC Output Span OUT PSR Power Supply Rejection I Short Circuit Output Current (Note 6) SC Sinking Sourcing Power Supply V Positive Supply Voltage ...
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... For V and and linearity is defi ned from code 16 to code 4,095. L Note 5: Inferred from measurement at code 16 (LTC2640-12), code 4 (LTC2640-10) or code 1 (LTC2640-8), and at full scale. l The denotes the specifi cations which apply over the full operating = 25° ...
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... LTC2640 TYPICAL PERFORMANCE CHARACTERISTICS LTC2640-L12 (Internal Reference 2.5V) FS Integral Nonlinearity (INL) 1 0.5 0 –0.5 –1.0 0 1024 2048 3072 4095 CODE 2640 G01 INL vs Temperature 1 0.5 INL (POS) 0 INL (NEG) –0.5 –1.0 50 100 –50 – 125 TEMPERATURE (°C) 2640 G04 Settling to ±1LSB ...
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... TYPICAL PERFORMANCE CHARACTERISTICS LTC2640-H12 (Internal Reference 4.096V) FS Integral Nonlinearity (INL) 1 0.5 0 –0.5 –1.0 0 1024 2048 3072 CODE 2640 G09 INL vs Temperature 1 0.5 INL (POS) 0 INL (NEG) –0.5 –1.0 50 100 –50 – 125 TEMPERATURE (°C) 2640 G12 Settling to ±1LSB CS/LD 5V/DIV 3.9μ ...
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... 2.5V FS INTERNAL REF . 0.5 0 –0.5 –1.0 0 128 64 CODE LTC2640 Load Regulation (LTC2640- (LTC2640- (LTC2640- –2 –4 –6 INTERNAL REF . –8 CODE = MIDSCALE –10 –30 –20 – (mA) OUT 2630 G21 12 Differential Nonlinearity (DNL) 1 ...
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... LOGIC VOLTAGE (V) LTC2640 T = 25°C, unless otherwise noted. A Large-Signal Response = 2.5V V OUT 0.5V/DIV 1/4 SCALE TO 3/4 SCALE 2μs/DIV 2640 G25 Headroom at Rails vs Output Current 5.0 5V SOURCING 4.5 4.0 3.5 3V (LTC2640-L) SOURCING 3.0 2.5 2.0 1.5 5V SINKING 1.0 0.5 3V (LTC2640-L) SINKING 2640 G28 I (mA) OUT Hardware CLR CC V OUT ...
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... SCK (Pin 2): Serial Interface Clock Input. CMOS and TTL compatible. SDI (Pin 3): Serial Interface Data Input. Data on SDI is clocked into the DAC on the rising edge of SCK. The LTC2640 accepts input word lengths of either bits. GND (Pin 4): Ground. V (Pin 5): Supply Voltage Input. 2.7V ≤ (LTC2640-L) or 4.5V ≤ ...
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... LTC2640-Z V REF CC INTERNAL SWITCH REFERENCE CONTROL RESISTOR DECODE LOGIC DIVIDER DACREF INPUT DAC DAC REGISTER REGISTER CLR GND LTC2640-M V REF CC INTERNAL REFERENCE SWITCH CONTROL DECODE LOGIC RESISTOR DIVIDER DACREF INPUT DAC DAC REGISTER REGISTER GND LTC2640 V OUT REF_SEL V OUT 2640 BD 2640fa 15 ...
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... LTC2640 TIMING DIAGRAM SCK SDI CS/ Figure 1. Serial Interface Timing 2640 F01 2640fa ...
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... OPERATION The LTC2640 is a family of single voltage output DACs in 8-lead ThinSOT packages. Each DAC can operate rail-to-rail using an external reference, or with its full-scale voltage set by an integrated reference. Twelve combinations of accuracy (12-, 10-, and 8-bit), power-on reset value (zero or midscale), and full-scale voltage (2.5V or 4.096V) are available ...
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... The 16-bit data word is ignored for all commands that do not include a Write operation. Reference Modes For applications where an accurate external reference is not available, the LTC2640 has a user-selectable, inte- grated reference. The LTC2640-LM/LTC2640-LZ provide a full-scale output of 2.5V. The LTC2640-HM/LTC2640-HZ provide a full-scale output of 4.096V. The internal reference can be useful in applications where the supply voltage is poorly regulated ...
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... The resistance from the LTC2640 GND pin to the ground plane should be as low as possible. Resistance here will add directly to the effective DC output impedance of the device (typically 0.1Ω ...
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... Thus the DAC ground pin becomes the common point for 20 analog ground, digital ground, and power ground. When the LTC2640 is sinking large currents, this current fl ows out the ground pin and directly to the power ground trace without affecting the analog ground plane voltage. ...
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... OPERATION LTC2640 2640fa 21 ...
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... LTC2640 OPERATION OUTPUT VOLTAGE 0V NEGATIVE INPUT CODE OFFSET (b) Figure 4. Effects of Rail-to-Rail Operation on a DAC Transfer Curve (Shown for 12 Bits) (a) Overall Transfer Function (b) Effect of Negative Offset for Codes Near Zero (c) Effect of Positive Full-Scale Error for Codes Near Full Scale REF ...
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... TS8 Package 8-Lead Plastic TSOT-23 (Reference LTC DWG # 05-08-1637) 0.65 REF 1.22 REF 1.50 – 1.75 2.80 BSC 1.4 MIN (NOTE 4) 0.65 BSC 0.80 – 0.90 1.00 MAX 0.09 – 0.20 (NOTE 3) LTC2640 2.90 BSC (NOTE 4) PIN ONE ID 0.22 – 0.36 8 PLCS (NOTE 3) 0.01 – 0.10 1.95 BSC TS8 TSOT-23 0802 23 2640fa ...
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... LTC2640 TYPICAL APPLICATION REF_SEL 3 SDI SERIAL LTC2640A 2 BUS -LM12 SCK 1 CS/LD GND RELATED PARTS PART NUMBER DESCRIPTION LTC1663 Single 10-Bit V OUT LTC1669 Single 10-Bit V OUT LTC2360-LTC2362/ 12-Bit SAR ADCs in TSOT23-6/TSOT23-8 Packages LTC2365-LTC2366 LTC2450/LTC2452 16-Bit Single-Ended/Differential Delta Sigma ADCs LTC2451/LTC2453 16-Bit Single-Ended/Differential Delta Sigma ADCs ...