Datasheet

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LT1352/LT1353

13523fa

TYPICAL APPLICATIO

APPLICATIO S

DESCRIPTIO

FEATURES

Dual and Quad

250µA, 3MHz, 200V/µs

Operational Amplifiers

■

3MHz Gain Bandwidth

■

200V/µs Slew Rate

■

250µA Supply Current per Amplifier

■

C-Load

Op Amp Drives All Capacitive Loads

■

Unity-Gain Stable

■

Maximum Input Offset Voltage: 600µV

■

Maximum Input Bias Current: 50nA

■

Maximum Input Offset Current: 15nA

■

Minimum DC Gain, R

= 2k: 30V/mV

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Input Noise Voltage: 14nV/√Hz

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Settling Time to 0.1%, 10V Step: 700ns

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Settling Time to 0.01%, 10V Step: 1.25µs

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Minimum Output Swing into 1k: ±13V

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Minimum Output Swing into 500Ω: ±3.4V

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Specified at ±2.5V, ±5V and ±15V

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Battery-Powered Systems

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Wideband Amplifiers

■

Buffers

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Active Filters

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Data Acquisition Systems

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Photodiode Amplifiers

The LT

1352/LT1353 are dual and quad, very low power,

high speed operational amplifiers with outstanding AC

and DC performance. The amplifiers feature much lower

supply current and higher slew rate than devices with

comparable bandwidth. The circuit combines the slewing

performance of a current feedback amplifier in a true

operational amplifier with matched high impedance

inputs. The high slew rate ensures that the large-signal

bandwidth is not degraded. Each output is capable of

driving a 1kΩ load to ±13V with ±15V supplies and a 500Ω

load to ±3.4V on ±5V supplies.

The LT1352/LT1353 are members of a family of fast, high

performance amplifiers using this unique topology and

employing Linear Technology Corporation’s advanced

complementary bipolar processing. For higher bandwidth

devices with higher supply current see the LT1354 through

LT1365 data sheets. Bandwidths of 12MHz, 25MHz, 50MHz

and 70MHz are available with 1mA, 2mA, 4mA and 6mA of

supply current per amplifier. Singles, duals and quads of

each amplifier are available. The LT1352 is available in an

8-lead SO package. The LT1353 is offered in a 14-lead

narrow surface mount package.

C-Load is a trademark of Linear Technology Corporation.

, LTC and LT are registered trademarks of Linear Technology Corporation.

Instrumentation Amplifier

Large-Signal Response

= –1 1352/53 TA02

–

GAIN = [R4/R3][1 + (1/2)(R2/R1 + R3/R4) + (R2 + R3)/R5] = 102

TRIM R5 FOR GAIN

TRIM R1 FOR COMMON MODE REJECTION

BW = 30kHz

–

1/2

LT1352

–

1/2

LT1352

50k

1.1k

50k

OUT

1352/53 TA01

■

Available in SO-8 Package

■

LT1353 in Narrow Surface Mount Package

Summary of content (16 pages)

PAGE 1
LT1352/LT1353 Dual and Quad 250µA, 3MHz, 200V/µs Operational Amplifiers DESCRIPTIO U FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ The LT ®1352/LT1353 are dual and quad, very low power, high speed operational amplifiers with outstanding AC and DC performance. The amplifiers feature much lower supply current and higher slew rate than devices with comparable bandwidth.
PAGE 2
LT1352/LT1353 U W W W ABSOLUTE MAXIMUM RATINGS (Note 1) Total Supply Voltage (V + to V –) .............................. 36V Differential Input Voltage (Transient Only, Note 2) ±10V Input Voltage .......................................................... ±VS Output Short-Circuit Duration (Note 3) ........... Indefinite Operating Temperature Range ................ – 40°C to 85°C Specified Temperature Range (Note 7) .. – 40°C to 85°C Maximum Junction Temperature (See Below) Plastic Package .............
PAGE 3
LT1352/LT1353 ELECTRICAL CHARACTERISTICS TA = 25°C, VCM = 0V unless otherwise noted SYMBOL PARAMETER CONDITIONS VSUPPLY MIN TYP AVOL Large-Signal Voltage Gain VOUT IOUT VOUT = ±12V, RL = 5k VOUT = ±10V, RL = 2k VOUT = ±10V, RL = 1k VOUT = ±2.5V, RL = 5k VOUT = ±2 .5V, RL = 2k VOUT = ±2.5V, RL = 1k VOUT = ±1V, RL = 5k ±15V ±15V ±15V ±5V ±5V ±5V ±2.
PAGE 4
LT1352/LT1353 ELECTRICAL CHARACTERISTICS 0°C ≤ TA ≤ 70°C, VCM = 0V unless otherwise noted SYMBOL PARAMETER CONDITIONS VSUPPLY MIN CMRR Common Mode Rejection Ratio VCM = ±12V VCM = ±2.5V VCM = ±0.5V ±15V ±5V ±2.5V 78 77 67 dB dB dB PSRR Power Supply Rejection Ratio VS = ±2.5V to ±15V 89 dB AVOL Large-Signal Voltage Gain VOUT = ±12V, RL = 5k VOUT = ±10V, RL = 2k VOUT = ±2.5V, RL = 5k VOUT = ±2 .5V, RL = 2k VOUT = ±2.5V, RL = 1k VOUT = ±1V, RL = 5k ±15V ±15V ±5V ±5V ±5V ±2.
PAGE 5
LT1352/LT1353 ELECTRICAL CHARACTERISTICS – 40°C ≤ TA ≤ 85°C, VCM = 0V unless otherwise noted (Note 7) SYMBOL PARAMETER CONDITIONS VSUPPLY MIN VOUT Output Swing RL = 5k, VIN = ±10mV RL = 2k, VIN = ±10mV RL = 1k, VIN = ±10mV RL = 1k, VIN = ±10mV RL= 500Ω, VIN = ±10mV RL = 5k, VIN = ±10mV ±15V ±15V ±15V ±5V ±5V ±2.5V 13.3 13.2 10.0 3.3 3.2 1.1 ±V ±V ±V ±V ±V ±V IOUT Output Current VOUT = ±10V VOUT = ±3.2V ±15V ±5V 10.0 6.
PAGE 6
LT1352/LT1353 U W TYPICAL PERFORMANCE CHARACTERISTICS Input Bias Current vs Temperature 100 VS = ±15V IB+ + IB– IB = 2 28 24 20 16 12 8 110 10 TA = 25°C TA = 25°C VS = ±15V AV = 101 RS = 100k en 1 10 in VS = ±15V 100 OPEN-LOOP GAIN (dB) 32 Open-Loop Gain vs Resistive Load INPUT CURRENT NOISE (pA/√Hz) INPUT BIAS CURRENT (nA) 36 Input Noise Spectral Density INPUT VOLTAGE NOISE (nV/√Hz) 40 VS = ±5V 90 80 70 4 50 25 0 75 TEMPERATURE (°C) 100 125 1 10 1k 100 FREQUENCY (Hz) 1352/53 G04
PAGE 7
LT1352/LT1353 U W TYPICAL PERFORMANCE CHARACTERISTICS 60 VS = ±5V 40 30 GAIN 20 20 10 0 0 –20 –10 –40 100M 1k 10k 100k 1M FREQUENCY (Hz) 10M 6 AV = 100 AV = 10 10 1 10k 1k 100k 1M FREQUENCY (Hz) 4.00 VS = ±5V 46 3 3.75 PHASE MARGIN 44 10M 42 3.25 40 38 VS = ±15V 36 VS = ±5V 34 50 25 0 75 TEMPERATURE (°C) 100 5 4 3 2 2 1 1 0 –1 ±15V ±5V ±2.5V –3 –5 10k 100k 1M FREQUENCY (Hz) 3.75 44 3.50 42 3.25 40 3.00 38 36 2.75 GAIN BANDWIDTH 2.50 34 32 2.
PAGE 8
LT1352/LT1353 U W TYPICAL PERFORMANCE CHARACTERISTICS Slew Rate vs Supply Voltage TA = 25°C AV = –1 RF = RG = 5k SR = (SR+ + SR – )/2 Slew Rate vs Input Level 150 VS = ±15V 150 100 VS = ±5V 50 50 TA = 25°C VS = ±15V AV = –1 RFB = RG = 5k SR = (SR+ + SR –)/2 175 SLEW RATE (V/µs) 100 200 AV = –1 RF = RG = RL = 5k SR = (SR+ + SR – )/2 200 SLEW RATE (V/µs) 150 SLEW RATE (V/µs) Slew Rate vs Temperature 250 200 125 100 75 50 25 0 0 0 –50 –25 15 5 10 SUPPLY VOLTAGE (±V) 50 0 75 25 TEMPERATUR
PAGE 9
LT1352/LT1353 U W TYPICAL PERFORMANCE CHARACTERISTICS Small-Signal Transient (AV = 1) Small-Signal Transient (AV = – 1) 1352/53 G31 Small-Signal Transient (AV = – 1, CL = 1000pF) 1352/53 G32 Large-Signal Transient (AV = 1) Large-Signal Transient (AV = – 1) 1352/53 G34 1352/53 G33 Large-Signal Transient (AV = 1, CL = 10,000pF) 1352/53 G35 1352/53 G36 U W U U APPLICATIONS INFORMATION Layout and Passive Components Capacitive Loading The LT1352/LT1353 amplifiers are easy to use and tolerant o
PAGE 10
LT1352/LT1353 U W U U APPLICATIONS INFORMATION applications where DC accuracy must be maximized. The inputs can withstand transient differential input voltages up to 10V without damage and need no clamping or source resistance for protection. Differential inputs, however, generate large supply currents (tens of mA) as required for high slew rates.
PAGE 11
LT1352/LT1353 W W SI PLIFIED SCHE ATIC V+ R2 Q11 Q10 Q12 C1 R3 Q21 Q20 R6 Q9 –IN Q5 Q7 R1 Q3 1k Q17 Q2 Q6 Q8 Q19 Q1 RC CC +IN OUTPUT Q18 Q4 R7 Q22 Q13 C2 CT Q14 Q15 Q16 Q23 Q24 R4 V– R5 1352/53 SS 13523fa 11
PAGE 12
LT1352/LT1353 U TYPICAL APPLICATIONS DAC I-to-V Converter 10pF DAC INPUTS 12 5k – 1/2 LT1352 565A TYPE VOUT + 5k V VOS + IOS (5kΩ) + OUT < 0.5LSB AVOL 1352/53 TA03 400kHz Photodiode Preamp with 10kHz Highpass Loop 1N5712 10k – BPV22NF 1/2 LT1352 1.
PAGE 13
LT1352/LT1353 U PACKAGE DESCRIPTION N8 Package 8-Lead PDIP (Narrow .300 Inch) (Reference LTC DWG # 05-08-1510) .400* (10.160) MAX 8 7 6 5 1 2 3 4 .255 ± .015* (6.477 ± 0.381) .300 – .325 (7.620 – 8.255) .008 – .015 (0.203 – 0.381) ( +.035 .325 –.015 8.255 +0.889 –0.381 ) .045 – .065 (1.143 – 1.651) .130 ± .005 (3.302 ± 0.127) .065 (1.651) TYP .100 (2.54) BSC .120 (3.048) .020 MIN (0.508) MIN .018 ± .003 (0.457 ± 0.076) N8 1002 NOTE: 1.
PAGE 14
LT1352/LT1353 U PACKAGE DESCRIPTION S8 Package 8-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .189 – .197 (4.801 – 5.004) NOTE 3 .045 ±.005 .050 BSC 8 .245 MIN 7 6 5 .160 ±.005 .150 – .157 (3.810 – 3.988) NOTE 3 .228 – .244 (5.791 – 6.197) .030 ±.005 TYP 1 RECOMMENDED SOLDER PAD LAYOUT .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.254) 0°– 8° TYP .016 – .050 (0.406 – 1.270) NOTE: 1. DIMENSIONS IN .053 – .069 (1.346 – 1.752) .014 – .019 (0.
PAGE 15
LT1352/LT1353 U PACKAGE DESCRIPTION S Package 14-Lead Plastic Small Outline (Narrow .150 Inch) (Reference LTC DWG # 05-08-1610) .337 – .344 (8.560 – 8.738) NOTE 3 .045 ±.005 .050 BSC 14 N 12 11 10 9 8 N .245 MIN .160 ±.005 .150 – .157 (3.810 – 3.988) NOTE 3 .228 – .244 (5.791 – 6.197) 1 .030 ±.005 TYP 13 2 3 N/2 N/2 RECOMMENDED SOLDER PAD LAYOUT 1 .010 – .020 × 45° (0.254 – 0.508) .008 – .010 (0.203 – 0.254) 2 3 4 5 6 .053 – .069 (1.346 – 1.752) .004 – .010 (0.101 – 0.
PAGE 16
LT1352/LT1353 U TYPICAL APPLICATIONS 20kHz, 4th Order Butterworth Filter 4.64k 5.49k 470pF 220pF 4.64k 13.3k – VIN 2200pF 1/2 LT1352 + 5.49k 11.