LTC2629 LINER [Linear Technology], LTC2629 Datasheet
LTC2629
Available stocks
Related parts for LTC2629
LTC2629 Summary of contents
Page 1
... The power-on reset circuit resets the LTC2609-1/LTC2619-1/ LTC2629-1 to midscale. The voltage outputs stay at midscale until a valid write and update take place. , LTC and LT are registered trademarks of Linear Technology Corporation. ...
Page 2
... OS Coefficient GE Gain Error Gain Temperature Coefficient (Note 1) Operating Temperature Range: LTC2609C/LTC2619C/LTC2629C LTC2609C-1/LTC2619C-1/LTC2629C-1 ... 0°C to 70°C LTC2609I/LTC2619I/LTC2629I LTC2609I-1/LTC2619I-1/LTC2629I-1 .. – 40°C to 85° ORDER PART NUMBER LTC2609CGN LTC2609CGN-1 15 REFD LTC2609IGN 14 V LTC2609IGN-1 OUTD 13 V LTC2619CGN ...
Page 3
... IN C Capacitive Load for Each Bus Line B C External Capacitive Load on Address CAX Pins LTC2609/LTC2619/LTC2629 ● The denotes specifications which apply over the full operating = 25°C. REFA = REFB = REFC = REFD = 4.096V (V A unloaded, unless otherwise noted. (Note 9) OUT CONDITIONS ± ...
Page 4
... REF and 3/4 scale to 1/4 scale. Load parallel with 200pF to GND. 4 ● The denotes specifications which apply over the full operating = 25°C. REFA = REFB = REFC = REFD = 4.096V (V A unloaded, unless otherwise noted. OUT LTC2629/LTC2629-1 LTC2619/LTC2619-1 LTC2609/LTC2609-1 MIN TYP MAX 7 2.7 0.7 1000 12 180 120 ...
Page 5
... Settling to ±1LSB V OUT 100µV/DIV 9TH CLOCK OF 3RD DATA SCL BYTE 2V/DIV 2µs/DIV 4.096V CC REF 1/4 SCALE TO 3/4 SCALE STEP 200pF L L AVERAGE OF 2048 EVENTS LTC2609/LTC2619/LTC2629 Differential Nonlinearity (DNL 4.096V REF 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 16384 32768 ...
Page 6
... TYPICAL PERFOR A CE CHARACTERISTICS LTC2619 Integral Nonlinearity (INL 4.096V REF –2 –4 –6 –8 0 4096 8192 12288 16383 CODE 2609 G09 LTC2629 Integral Nonlinearity (INL) 2 4.096V REF 1.5 1.0 0.5 0 –0.5 –1.0 –1.5 –2.0 0 1024 2048 3072 4095 CODE 2609 G12 6 Differential Nonlinearity (DNL) 1 ...
Page 7
... TEMPERATURE (°C) 2609 G18 Gain Error 0.4 0.3 0.2 0.1 0 –0.1 –0.2 –0.3 –0.4 2 LTC2609/LTC2619/LTC2629 Load Regulation 1.0 CODE = MIDSCALE 0.8 0.6 0.4 0 REF CC –0.2 –0 REF CC –0.6 –0.8 –1.0 –35 –25 –15 – (mA) ...
Page 8
... LTC2609/LTC2619/LTC2629 W U TYPICAL PERFOR A CE CHARACTERISTICS LTC2609/LTC2619/LTC2629 Large-Signal Response V OUT 0.5V/DIV REF CC 1/4 SCALE TO 3/4 SCALE 2.5µs/DIV 2609 G23 Headroom at Rails vs Output Current 5.0 5V SOURCING 4.5 4.0 3.5 3V SOURCING 3.0 2.5 2.0 1.5 1.0 5V SINKING 0.5 3V SINKING (mA) OUT 2609 G26 8 Midscale Glitch Impulse TRANSITION FROM ...
Page 9
... OUT 5. 5.6V REF CODE = SWEPT OUT 1V/DIV LTC2609/LTC2619/LTC2629 Output Voltage Noise, 0.1Hz to 10Hz V OUT 10µV/DIV 0 100k 1M 2609 G29 Short-Circuit Output Current vs V OUT REF CODE = FULL SCALE –10 V OUT –20 –30 – ...
Page 10
... LTC2609/LTC2619/LTC2629 PIN FUNCTIONS GND (Pin 1): Analog Ground. REFLO (Pin 2): Reference Low. The voltage at this pin sets the zero scale (ZS) voltage of all DACs. This pin can be raised above ground ground 3V. CC REFA to REFD (Pins 3, 6, 12, 15): Reference Voltage Inputs for each DAC. REFx sets the full-scale voltage of the DACs. REFLO ≤ ...
Page 11
... W BLOCK DIAGRA REFA 3 DAC OUTA V OUTB DAC B 5 REFB 6 SCL 8 SDA 9 LTC2609/LTC2619/LTC2629 V REFLO GND CONTROL LOGIC 32-BIT SHIFT REGISTER ADDRESS DECODE INTERFACE 15 REFD DAC OUTD DAC OUTC 12 REFC 11 CA0 10 CA1 LOGIC 7 CA2 2609 BD 26091929f 11 ...
Page 12
... LTC2609/LTC2619/LTC2629 TEST CIRCUITS Test Circuit 1 100Ω IH( IL( DIAGRA S SDA LOW r SCL t HD(STA HD(DAT) ALL VOLTAGE LEVELS REFER SU(DAT HD(STA) t SU(STA HIGH AND V LEVELS IH(MIN) IL(MAX) Figure 1 Test Circuit 2 ...
Page 13
... The LTC2609/LTC2619/LTC2629 clear the outputs to zero scale when power is first applied, making system initialization consistent and repeatable. The LTC2609-1/ LTC2619-1/LTC2629-1 set the voltage outputs to midscale when power is first applied. For some applications, downstream circuits are active during DAC power-up and may be sensitive to nonzero outputs from the DAC during this time ...
Page 14
... The 16-bit data word consists of the 16-, 14- or 12-bit input code, MSB to LSB, followed don’t care bits (LTC2609, LTC2619 and LTC2629 respectively). A typical LTC2609 write transaction is shown Figure 4 ...
Page 15
... Write Word Protocol for LTC2609/LTC2619/LTC1629 S SLAVE ADDRESS Input Word (LTC2609 1ST DATA BYTE Input Word (LTC2619 1ST DATA BYTE Input Word (LTC2629 1ST DATA BYTE Table 2 COMMAND Write to Input Register ...
Page 16
... LTC2609/LTC2619/LTC2629 U OPERATIO then the main bias generation circuit block has been automatically shut down in addition to the individual DAC amplifiers and reference inputs. In this case, the power-up delay time is 12µs (for V = 5V) or 30µs (for V CC Voltage Output The rail-to-rail amplifier has guaranteed load regulation when sourcing or sinking up to 15mA ...
Page 17
... U OPERATIO LTC2609/LTC2619/LTC2629 26091929f 17 ...
Page 18
... LTC2609/LTC2619/LTC2629 U OPERATIO 18 26091929f ...
Page 19
... Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of its circuits as described herein will not infringe on existing patent rights. LTC2609/LTC2619/LTC2629 REFA REFB REFC JP3 ...
Page 20
... LTC2609/LTC2619/LTC2629 PACKAGE DESCRIPTIO .254 MIN .0165 ± .0015 RECOMMENDED SOLDER PAD LAYOUT .007 – .0098 (0.178 – 0.249) .016 – .050 (0.406 – 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) 3. DRAWING NOT TO SCALE RELATED PARTS PART NUMBER DESCRIPTION LTC1458/LTC1458L ...