LT1468 90MHz, 22V/s 16-Bit Accurate Operational Ampli er FEATURES DESCRIPTION n 90MHz Gain Bandwidth, f = 100kHz The LT 1468 is a precision high speed operational ampli er n 22V/s Slew Rate with 16-bit accuracy and 900ns settling to 150V for 10V n Settling Time: 900ns (A = 1, 150V, 10V Step) signals. This unique blend of precision and AC performance V n Low Distortion, 96.5dB for 100kHz, 10V makes the LT1468 the optimum choice for high accuracy P-P n Maximum Input Offset Voltage: 75V applications such as DAC current-to-voltage conversion n Maximum Input Offset Voltage Drift: 2V/C and ADC buffers. The initial accuracy and drift character- n Maximum () Input Bias Current: 10nA istics of the input offset voltage and inverting input bias n Minimum DC Gain: 1000V/mV current are tailored for inverting applications. n Minimum Output Swing into 2k: 12.8V The 90MHz gain bandwidth ensures high open-loop gain n Unity Gain Stable at frequency for reducing distortion. In noninverting ap- n Input Noise Voltage: 5nV/Hz plications such as an ADC buffer, the low distortion and n Input Noise Current: 0.6pA/Hz DC accuracy allow full 16-bit AC and DC performance. n Total Input Noise Optimized for 1k < R < 20k S n The 22V/s slew rate of the LT1468 improves large-signal Speci ed at 5V and 15V performance in applications such as active lters and instrumentation ampli ers compared to other precision APPLICATIONS op amps. n 16-Bit DAC Current-to-Voltage Converter The LT1468 is manufactured on a complementary bipolar n Precision Instrumentation process. It is available in a space saving 3mm 3mm lead- n ADC Buffer less package, as well as small outline and DIP packages. n Low Distortion Active Filters L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n High Accuracy Data Acquisition Systems Technology Corporation. All other trademarks are the property of their respective owners. n Photodiode Ampli ers TYPICAL APPLICATION Total Harmonic Distortion vs Frequency 80 16-Bit DAC I-to-V Converter V = 15V S A = 2 V R = 2k L 90 V = 10V OUT P-P 20pF 16 6k 100 DAC INPUTS 2k V LT1468 OUT 110 LTC 1597 + 50pF 120 OPTIONAL NOISE FILTER OFFSET: V + I (6k) < 1LSB OS B SETTLING TIME TO 150V = 1.7s SETTLING LIMITED BY 6k AND 20pF TO COMPENSATE DAC OUTPUT CAPACITANCE 130 1468 TA01 100 1k 10k 100k FREQUENCY (Hz) 1468 TA02 1468fb 1 TOTAL HARMONIC DISTORTION (dB)LT1468 (Note 1) ABSOLUTE MAXIMUM RATINGS + Total Supply Voltage (V to V ) ................................. 36V Speci ed Temperature Range (Note 4) .... 40C to 85C Maximum Input Current (Note 2) ...........................10mA Junction Temperature ........................................... 150C Output Short-Circuit Duration (Note 3) ............ Inde nite Storage Temperature Range ................... 65C to 150C Operating Temperature Range ................. 40C to 85C Lead Temperature (Soldering, 10 sec) .................. 300C PIN CONFIGURATION TOP VIEW TOP VIEW NULL 1 8 DNC* NULL 1 8 DNC* + IN V 2 7 + IN 2 7 V + +IN OUT 3 6 + +IN 3 6 OUT V 4 5 NULL V 4 5 NULL N8 PACKAGE S8 PACKAGE 8-LEAD PDIP 8-LEAD PLASTIC SO DD PACKAGE *DO NOT CONNECT 8-LEAD (3mm 3mm) PLASTIC DFN T = 150C, = 43C/W T = 150C, = 130C/W (N8) JMAX JA JMAX JA EXPOSED PAD IS INTERNALLY CONNECTED TO V T = 150C, = 190C/W (S8) JMAX JA ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT1468CN8 PBF NA LT1468CN8 8-Lead PDIP 0C to 70C LT1468IN8 PBF NA LT1468IN8 8-Lead PDIP 40C to 85C LT1468CS8 PBF LT1468CS8 TRPBF 1468 8-Lead Plastic Small Outline 0C to 70C LT1468IS8 PBF LT1468IS8 TRPBF 1468I 8-Lead Plastic Small Outline 40C to 85C LT1468ACDD PBF LT1468ACDD TRPBF LDJX 8-Lead (3mm 3mm) Plastic DFN 0C to 70C LT1468AIDD PBF LT1468AIDD TRPBF LDJX 8-Lead (3mm 3mm) Plastic DFN 40C to 85C LT1468CDD PBF LT1468CDD TRPBF LDJX 8-Lead (3mm 3mm) Plastic DFN 0C to 70C LT1468IDD PBF LT1468IDD TRPBF LDJX 8-Lead (3mm 3mm) Plastic DFN 40C to 85C LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION SPECIFIED TEMPERATURE RANGE LT1468CN8 NA LT1468CN8 8-Lead PDIP 0C to 70C LT1468IN8 NA LT1468IN8 8-Lead PDIP 40C to 85C LT1468CS8 LT1468CS8 TR 1468 8-Lead Plastic Small Outline 0C to 70C LT1468IS8 LT1468IS8 TR 1468I 8-Lead Plastic Small Outline 40C to 85C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container. For more information on lead free part marking, go to: