LT1469 Dual 90MHz, 22V/s 16-Bit Accurate Operational Ampl ifier FEATURES DESCRIPTION n 90MHz Gain Bandwidth, f = 100kHz The LT 1469 is a dual, precision high speed operational n Maximum Input Offset Voltage: 125V amplifier with 16-bit accuracy and 900ns settling to 150V n Settling Time: 900ns (A = 1, 150V, 10V Step) for 10V steps. This unique blend of precision and AC V n 22V/s Slew Rate performance makes the LT1469 the optimum choice for n Low Distortion: 96.5dB for 100kHz, 10V high accuracy applications such as DAC current-to-voltage P-P n Maximum Input Offset Voltage Drift: 3V/C conversion and ADC buffers. The initial accuracy and drift n Maximum Inverting Input Bias Current: 10nA characteristics of the input offset voltage and inverting input n Minimum DC Gain: 300V/mV bias 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 LT1469 improves large signal Specified at 5V and 15V Supplies performance compared to other precision op amps in applications such as active filters and instrumentation APPLICATIONS amplifiers. n Precision Instrumentation The LT1469 is available in a space saving 4mm 4mm n High Accuracy Data Acquisition Systems leadless package, as well as in small outline and DIP pack- n 16-Bit DAC Current-to-Voltage Converter ages. A single version, the LT1468, is also available. n ADC Buffer L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear n Low Distortion Active Filters Technology Corporation. All other trademarks are the property of their respective owners. n Photodiode Amplifiers TYPICAL APPLICATION 16-Bit DAC I-to-V Converter and Reference Inverter for Bipolar Output Swing (V = 10V to 10V) OUT 15V Bipolar Multiplying Mode (LTC1597) V REF Signal-to-(Noise + Distortion) 40 + DAC INPUT CODE = ALL ZEROS 1/2 LT1469 50 V = 20V REF P-P 2.4s SETTLING TIME TO 1LSB ON 20V STEP 60 15pF 70 15pF 80 12k 12k 12k 12k 500kHz FILTER 16 BITS LTC1597 90 DAC INPUTS R LPF 1/2 LT1469 V OUT 100 80kHz FILTER + C LPF 30kHz FILTER 110 10 100 1k 10k 100k 15V 1469 TA01 FREQUENCY (Hz) 1469 TA01a 1469fb 1 SIGNAL/(NOISE + DISTORTION) (dB)LT1469 (Note 1) ABSOLUTE MAXIMUM RATINGS + Total Supply Voltage (V to V ) .................................36V Specified Temperature Range (Note 5) .... 40C to 85C Input Current (Note 2) ..........................................10mA Maximum Junction Temperature........................... 150C Output Short-Circuit Duration (Note 3) ............ Indefinite Storage Temperature Range ................... 65C to 150C Operating Temperature Range (Note 4).... 40C to 85C Lead Temperature (Soldering, 10 sec) S8 and N8 Package ........................................... 300C PIN CONFIGURATION TOP VIEW TOP VIEW + OUT A 1 12 V + OUT A 1 8 V IN A 2 11 OUT B A IN A 2 7 OUT B +IN A 3 10 IN B B A V 4 9 +IN B +IN A 3 6 IN B 13 B 5 8 N/C N/C V +IN B 4 5 6 7 N/C N/C N8 PACKAGE S8 PACKAGE DF PACKAGE 8-LEAD PDIP 8-LEAD PLASTIC SO 12-LEAD (4mm 4mm) PLASTIC DFN T = 150C, = 130C/W (N8) JMAX JA T = 150C, = 43C/W JMAX JA T = 150C, = 190C/W (S8) JMAX JA EXPOSED PAD (PIN 13) MUST BE CONNECTED TO V ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT1469CN8 PBF NA LT1469CN8 8-Lead PDIP 0C to 70C LT1469IN8 PBF NA LT1469IN8 8-Lead PDIP 40C to 85C LT1469CS8 PBF LT1469CS8 TRPBF 1469 8-Lead Plastic Small Outline 0C to 70C LT1469IS8 PBF LT1469IS8 TRPBF 1469I 8-Lead Plastic Small Outline 40C to 85C LT1469ACDF PBF LT1469ACDF TRPBF 1469 12-Lead (4mm 4mm) Plastic DFN 0C to 70C LT1469AIDF PBF LT1469AIDF TRPBF 1469 12-Lead (4mm 4mm) Plastic DFN 40C to 85C LT1469CDF PBF LT1469CDF TRPBF 1469 12-Lead (4mm 4mm) Plastic DFN 0C to 70C LT1469IDF PBF LT1469IDF TRPBF 1469 12-Lead (4mm 4mm) Plastic DFN 40C to 85C LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT1469CN8 NA LT1469CN8 8-Lead PDIP 0C to 70C LT1469IN8 NA LT1469IN8 8-Lead PDIP 40C to 85C LT1469CS8 LT1469CS8 TR 1469 8-Lead Plastic Small Outline 0C to 70C LT1469IS8 LT1469IS8 TR 1469I 8-Lead Plastic Small Outline 40C to 85C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: