LT6235 Linear Technology, LT6235 Datasheet
LT6235
Available stocks
Related parts for LT6235
LT6235 Summary of contents
Page 1
... The LT6233/LT6233-10 is available in the 6-lead SOT-23 package and the LT6234 dual is available in the 8-pin SO package with standard pinouts. For compact layouts, the dual is also available in a tiny dual fine pitch leadless package (DFN). The LT6235 is available in the 16-pin SSOP package ...
Page 2
... NUMBER LT6234CDD + 8 V LT6234IDD 7 OUT B 6 –IN B – + PART MARKING* = 160 C/W JA LAET – ORDER PART NUMBER 16 OUT D 15 –IN D LT6235CGN – +IN D LT6235IGN – + – 11 – PART 10 OUT C MARKING 9 NC 6235 6235I = 135 C/W JA 623345f ...
Page 3
... I Short-Circuit Current SC I Supply Current per Amplifier S Disabled Supply Current per Amplifier LT6233/LT6233-10 5V, 0V 3.3V, 0V CONDITIONS LT6233S6, LT6233S6-10 LT6234S8, LT6235GN LT6234DD 0.1Hz to 10Hz f = 10kHz 10kHz 5V 10k 10kHz 5V 10k S S Common Mode Differential Mode ...
Page 4
... Turn-Off Time OFF GBW Gain Bandwidth Product SR Slew Rate FPBW Full Power Bandwidth t Settling Time (LT6233, LT6234, LT6235) S The denotes the specifications which apply over 0 C < T supply, ENABLE = 0V, unless otherwise noted. SYMBOL PARAMETER V Input Offset Voltage OS Input Offset Voltage Match ...
Page 5
... V = 0. LT6233-10 –10 1k 0.5V to 4.5V O LT6233 5V OUT P-P < temperature range CONDITIONS LT6233S6, LT6233S6-10 LT6234S8, LT6235GN LT6234DD V = Half Supply 5V 0.5V to 4.5V 10k 3.3V 0.65V to 2.65V,R = 10k ...
Page 6
... 5V – 1k 0. LT6233-10 –10 1k 0.5V to 4.5V O LT6233 5V OUT P-P CONDITIONS LT6233S6, LT6233S6-10 LT6234S8, LT6235GN LT6234DD 0.1Hz to 10Hz f = 10kHz f = 10kHz 10k 10kHz 10k S < MIN TYP MAX UNITS 195 mV 370 mV ...
Page 7
... ENABLE Pin Input Voltage HIGH H Output Leakage Current t Turn-On Time ON t Turn-Off Time OFF GBW Gain Bandwidth Product SR Slew Rate FPBW Full Power Bandwidth t Settling Time (LT6233, LT6234, LT6235) S LT6233/LT6233-10/ CONDITIONS Common Mode Differential Mode Common Mode Differential Mode V = 4.5V 10k ...
Page 8
... Turn-On Time ON t Turn-Off Time OFF SR Slew Rate FPBW Full Power Bandwidth (Note 9) 8 The denotes the specifications which apply over 0 C < 0V, ENABLE = 0V, unless otherwise noted. CONDITIONS LT6233S6, LT6233S6-10 LT6234S8, LT6235GN LT6234DD V = 4.5V,R = 10k Guaranteed by CMRR V = – – ...
Page 9
... Turn-On Time ON t Turn-Off Time OFF SR Slew Rate FPBW Full Power Bandwidth (Note 9) The denotes the specifications which apply over –40 C < 0V, ENABLE = 0V, unless otherwise noted. (Note 5) CONDITIONS LT6233S6, LT6233S6-10 LT6234S8, LT6235GN LT6234DD V = 4.5V,R = 10k Guaranteed by CMRR V = – – ...
Page 10
... Note 6: Matching parameters are the difference between the two amplifiers A and D and between B and C of the LT6235; between the two amplifiers of the LT6234. CMRR and PSRR match are defined as follows: CMRR and PSRR are measured in V/V on the matched amplifiers. The difference is calculated between the matching sides in V/V ...
Page 11
... 2. 1. TIME AFTER POWER-UP (s) 623345 G14 LT6233/LT6233-10/ LT6234/LT6235 Output Short Circuit Current vs Power Supply Voltage – 125 – 125 C A – – –60 T ...
Page 12
... LT6233/LT6233-10/ LT6234/LT6235 W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6233/LT6234/LT6235) Noise Voltage and Unbalanced Noise Current vs Frequency 2. NOISE VOLTAGE 2 1 NOISE CURRENT 0 10 100 1k 10k 100k FREQUENCY (Hz) 623345 G16 Open Loop Gain vs Frequency 5pF ...
Page 13
... OUT R = 100 , 2ND – 1k, 3RD 100 , 3RD L –70 – 1k, 2ND L –90 –100 10k 100k 1M 10M FREQUENCY (Hz) LT6233/LT6233-10/ LT6234/LT6235 Series Output Resistance and Overshoot vs Capacitive Load 5V ...
Page 14
... LT6233/LT6233-10/ LT6234/LT6235 W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6233/LT6234/LT6235) Distortion vs Frequency – – (P–P) OUT R = 1k, 3RD L – 100 , 2ND L – 100 , 3RD L –70 – 1k, 2ND L –90 –100 10k 100k 1M FREQUENCY (Hz) 623345 G34 Large Signal Response 5V 0V – ...
Page 15
... 40dBc 10k 100k 1M FREQUENCY (Hz) LT6233/LT6233-10/ LT6234/LT6235 Series Output Resistance and Overshoot vs Capacitive Load 5V 105 125 10 100 1000 CAPACITIVE LOAD (pF) ...
Page 16
... LT6233/LT6233-10/ LT6234/LT6235 W U TYPICAL PERFOR A CE CHARACTERISTICS (LT6233-10 and 3 Harmonic Distortion vs Frequency – – (P–P) OUT R = 1k, 2ND L – 100 , 3RD 100 , 2ND L – 1k, 3RD L –70 –80 –90 –100 10k 100k 1M 10M FREQUENCY (Hz) ...
Page 17
... U APPLICATIO S I FOR ATIO Amplifier Characteristics Figure simplified schematic of the LT6233/LT6234/ LT6235, which has a pair of low noise input transistors Q1 and Q2. A simple current mirror Q3/Q4 converts the differential signal to a single-ended output, and these transistors are degenerated to reduce their contribution to the overall noise. ...
Page 18
... I current. In applications that require N SUPPLY low noise voltage with the lowest possible supply current, this product can prove to be enlightening. The LT6233/ LT6234/LT6235 have an e • SUPPLY per amplifier, yet it is common to see amplifiers with similar noise specifications to have ...
Page 19
... V 511 – U1 LT6233-10 R15 + 88.7 EN R13 2k R4 R16 R12 + V 511 88.7 511 R14 C4 2k – LT6233- LT6233/LT6233-10/ LT6234/LT6235 Frequency Response Plot of Bandpass Filter 23 3 –7 100k 1M FREQUENCY (Hz) C8 68pF + R10 V 511 – OUT LT6233 + EN C9 68pF V = 100 (V – OUT ...
Page 20
... LT6233/LT6233-10/ LT6234/LT6235 PACKAGE DESCRIPTIO 0.62 0.95 MAX REF 3.85 MAX 2.62 REF RECOMMENDED SOLDER PAD LAYOUT PER IPC CALCULATOR 0.20 BSC DATUM ‘A’ 0.30 – 0.50 REF NOTE: 1. DIMENSIONS ARE IN MILLIMETERS 2. DRAWING NOT TO SCALE 3. DIMENSIONS ARE INCLUSIVE OF PLATING 4. DIMENSIONS ARE EXCLUSIVE OF MOLD FLASH AND METAL BURR 5. MOLD FLASH SHALL NOT EXCEED 0.254mm 6 ...
Page 21
... NOTE: 1. DRAWING TO BE MADE A JEDEC PACKAGE OUTLINE M0-229 VARIATION OF (WEED-1) 2. ALL DIMENSIONS ARE IN MILLIMETERS 3. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 4. EXPOSED PAD SHALL BE SOLDER PLATED LT6233/LT6233-10/ LT6234/LT6235 R = 0.115 TYP 5 8 3.00 0.10 1.65 0.10 ...
Page 22
... LT6233/LT6233-10/ LT6234/LT6235 PACKAGE DESCRIPTIO .050 BSC .245 MIN .030 .005 TYP RECOMMENDED SOLDER PAD LAYOUT .010 – .020 (0.254 – 0.508) .008 – .010 (0.203 – 0.254) (0.406 – 1.270) NOTE: 1. DIMENSIONS IN 2. DRAWING NOT TO SCALE 3. THESE DIMENSIONS DO NOT INCLUDE MOLD FLASH OR PROTRUSIONS. ...
Page 23
... TYP .015 .004 45 .053 – .068 (0.38 0.10) (1.351 – 1.727) 0 – 8 TYP .008 – .012 (0.203 – 0.305) LT6233/LT6233-10/ LT6234/LT6235 .189 – .196* (4.801 – 4.978) .009 (0.229 REF .150 – .157** (3.810 – 3.988) 1 ...
Page 24
... LT6233/LT6233-10/ LT6234/LT6235 U TYPICAL APPLICATIO S The LT6233 is applied as a transimpedance amplifier with an I-to-V conversion gain of 10k set by R1. The LT6233 is ideally suited to this application because of its low input offset voltage and current, and its low noise. This is be- cause the 10k resistor has an inherent thermal noise of 13nV ...