LTC1657CGN Linear Technology, LTC1657CGN Datasheet
LTC1657CGN
Specifications of LTC1657CGN
Available stocks
Related parts for LTC1657CGN
LTC1657CGN Summary of contents
Page 1
... Corporation’s LTC1450/LTC1450L 12-bit V family, allowing an upgrade path. They are the only buffered 16-bit parallel DACs in a 28-lead SSOP package and include an onboard reference for stand alone performance. , LTC and LT are registered trademarks of Linear Technology Corporation. LTC1657: 4.5V TO 5.5V LTC1657L: 2. ...
Page 2
... CONDITIONS Guaranteed Monotonic (Note 3) (Note 3) Measured at Code 200 (LTC1657) Measured at Code 200 (LTC1657L) LTC1657 LTC1657L For Specified Performance (LTC1657) For Specified Performance (LTC1657L) (Note ORDER PART NUMBER 28 LDAC 27 CLR LTC1657CGN 26 X1/X2 LTC1657CN 25 V OUT LTC1657IGN LTC1657IN 23 REFOUT LTC1657LCGN 22 REFHI LTC1657LCN 21 REFLO ...
Page 3
ELECTRICAL CHARACTERISTICS temperature range, otherwise specifications are unloaded, REFOUT tied to REFHI, REFLO tied to GND, X1/X2 tied to GND, unless otherwise noted. OUT SYMBOL PARAMETER Op Amp DC Performance Short-Circuit Current Low Short-Circuit Current High Output ...
Page 4
LTC1657/LTC1657L ELECTRICAL CHARACTERISTICS temperature range MIN MAX CC SYMBOL PARAMETER CONDITIONS Digital I/O V Digital Input High Voltage IH V Digital Input Low Voltage IL I Digital Input Leakage V LEAK C ...
Page 5
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC1657 Differential Nonlinearity 2.0 1.6 1.2 0.8 0.4 0 –0.4 –0.8 –1.2 –1.6 –2.0 0 16384 32768 49152 65535 DIGITAL INPUT CODE 1657 G01 LTC1657L Integral Nonlinearity ...
Page 6
LTC1657/LTC1657L W U TYPICAL PERFOR A CE CHARACTERISTICS LTC1657L Full-Scale Voltage vs Temperature 2.510 2.505 2.500 2.495 2.490 –55 – TEMPERATURE ( C) 1657 G10 LTC1657 Supply Current vs Logic Input Voltage ...
Page 7
W U TYPICAL PERFOR A CE CHARACTERISTICS LTC1657 0.1Hz to 10Hz Voltage Noise TIME (SEC CTIO S WR (Pin 1): Write Input (Active Low). Used with CSMSB ...
Page 8
LTC1657/LTC1657L CTIO S CLR (Pin 27): Clear Input (Asynchronous Active Low). A low on this pin asynchronously resets all input and DAC registers to 0s. U DIGITAL INTERFACE TRUTH TABLE CLR CSMSB CSLSB L X ...
Page 9
U U DEFI ITIO S Resolution (n): Resolution is defined as the number of digital input bits (n). It defines the number of DAC output n states (2 ) that divide the full-scale range. Resolution does not imply linearity. Full-Scale ...
Page 10
LTC1657/LTC1657L U OPERATIO Parallel Interface The data on the input of the DAC is written into the DAC’s input registers when Chip Select (CSLSB and/or CSMSB) and WR are at a logic low. The data that is written into the ...
Page 11
U U APPLICATIO S I FOR ATIO Rail-to-Rail Output Considerations In any rail-to-rail DAC, the output swing is limited to voltages within the supply range. If the DAC offset is negative, the output for the lowest codes limits at 0V ...
Page 12
LTC1657/LTC1657L U TYPICAL APPLICATIO S This circuit shows how to make a bipolar output 16-bit DAC with a wide output swing using an LTC1657 and an LT1077. R1 and R2 resistively divide down the LTC1657 output and an offset is ...
Page 13
U TYPICAL APPLICATIO S This circuit shows a digitally programmable current source from an external voltage source using an external op amp, an LT1218 and an NPN transistor (2N3440). Any digital word from 0 to 65535 is loaded into the ...
Page 14
LTC1657/LTC1657L PACKAGE DESCRIPTIO 0.0075 – 0.0098 (0.191 – 0.249) 0.016 – 0.050 (0.406 – 1.270) * DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH ...
Page 15
... MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.010 INCH (0.254mm) 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. ...
Page 16
... OUT (D )(4.096 65536 (3V 4.095V (0V to 2.5V) OUT = 5V (3V 4.095V (0V to 2.5V) OUT = 5V (3V 4.095V (0V to 2.5V) OUT = 5V, Low Power, Deglitched, 4-Quadrant Multiplying (3V), Low Power, Deglitched 4.096V OUT 1657lf LT/TP 0201 4K • PRINTED IN USA LINEAR TECHNOLOGY CORPORATION 1999 65535 1657 TA07 OUT ...