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Linear Technology Electronic Components Datasheet

LT1469 Datasheet

Dual 90MHz/ 22V/us 16-Bit Accurate Operational Amplifier

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Final Electrical Specifications
LT1469
Dual 90MHz, 22V/µs
16-Bit Accurate Operational Amplifier
FEATURES
DESCRIPTIO
February 2000
s 90MHz Gain Bandwidth, f = 100kHz
s Maximum Input Offset Voltage: 125µV
s Settling Time: 900ns (AV = –1, 150µV, 10V Step)
s 22V/µs Slew Rate
s Low Distortion: –96.5dB for 100kHz, 10VP-P
s Maximum Input Offset Voltage Drift: 3µV/°C
s Maximum Inverting Input Bias Current: 10nA
s Minimum DC Gain: 300V/mV
s Minimum Output Swing into 2k: ±12.8V
s Unity-Gain Stable
s Input Noise Voltage: 5nV/Hz
s Input Noise Current: 0.6pA/Hz
s Total Input Noise Optimized for 1k< RS < 20k
s Specified at ±5V and ±15V Supplies
U
APPLICATIO S
s Precision Instrumentation
s High Accuracy Data Acquisition Systems
s 16-Bit DAC Current-to-Voltage Converter
s ADC Buffer
s Low Distortion Active Filters
s Photodiode Amplifiers
The LT®1469 is a dual, precision high speed operational
amplifier with 16-bit accuracy and 900ns settling to 150µV
for 10V signals. This unique blend of precision and AC
performance makes the LT1469 the optimum choice for
high accuracy applications such as DAC current-to-volt-
age conversion and ADC buffers. The initial accuracy and
drift characteristics of the input offset voltage and invert-
ing input bias current are tailored for inverting applica-
tions.
The 90MHz gain bandwidth ensures high open-loop gain
at frequency for reducing distortion. In noninverting appli-
cations such as an ADC buffer, the low distortion and DC
accuracy allow full 16-bit AC and DC performance.
The 22V/µs slew rate of the LT1469 improves large signal
performance compared to other precision op amps in
applications such as active filters and instrumentation
amplifiers.
The LT1469 is manufactured on Linear Technology’s
complementary bipolar process and is available in 8-pin
PDIP and SO packages. A single version,the LT1468, is
also available.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
16-Bit Accurate Single Ended to Differential ADC Buffer
VIN
2k
+
1/2 LT1469
10pF
2k
1/2 LT1469
+
200
300pF
300pF
200
+IN
LTC1604
–IN
16 BITS
333ksps
1469 TA01
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.
1


Linear Technology Electronic Components Datasheet

LT1469 Datasheet

Dual 90MHz/ 22V/us 16-Bit Accurate Operational Amplifier

No Preview Available !

LT1469
ABSOLUTE AXI U RATI GS
(Note 1)
Total Supply Voltage (V + to V ) .............................. 36V
Input Current (Note 2) ........................................ ±10mA
Output Short-Circuit Duration (Note 3) ............ Indefinite
Operating Temperature Range (Note 4) .. – 40°C to 85°C
Specified Temperature Range (Note 5) ... – 40°C to 85°C
Maximum Junction Temperature .......................... 150°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
OUT A 1
–IN A 2
+IN A 3
V4
A
8 V+
7 OUT B
6 –IN B
B
5 +IN B
S8 PACKAGE
8-LEAD PLASTIC SO
TJMAX = 150°C, θJA = 130°C/W (N8)
TJMAX = 150°C, θJA = 190°C/W (S8)
Consult factory for Military grade parts.
ORDER PART
NUMBER
LT1469CS8
LT1469IS8
LT1469CN8
LT1469IN8
S8 PART MARKING
1469
1469I
ELECTRICAL CHARACTERISTICS TA = 25°C, VCM = 0V unless otherwise noted.
SYMBOL PARAMETER
VOS Input Offset Voltage
IOS Input Offset Current
IB– Inverting Input Bias Current
IB+ Noninverting Input Bias Current
en Input Noise Voltage Density
in Input Noise Current Density
RIN Input Resistance
CIN Input Capacitance
VCM Input Voltage Range (Positive)
Input Voltage Range (Negative)
CMRR Common Mode Rejection Ratio
PSRR
AVOL
Minimum Supply Voltage
Power Supply Rejection Ratio
Large-Signal Voltage Gain
VOUT Maximum Output Swing
IOUT Maximum Output Current
ISC Output Short-Circuit Current
CONDITIONS
f = 10kHz
f = 10kHz
VCM = ±12.5V
Differential
VCM = ±12.5V
VCM = ±2.5V
Guaranteed by PSRR
VS = ±4.5V to ±15V
VOUT = ±12.5V, RL = 10k
VOUT = ±12.5V, RL = 2k
VOUT = ±2.5V, RL = 10k
VOUT = ±2.5V, RL = 2k
RL = 10k, 1mV Overdrive
RL = 2k, 1mV Overdrive
RL = 10k, 1mV Overdrive
RL = 2k, 1mV Overdrive
VOUT = ±12.5V, 1mV Overdrive
VOUT = ±2.5V, 1mV Overdrive
VOUT = 0V, 0.2V Overdrive (Note 3)
VSUPPLY
±15V
±5V
±5V to ±15V
±5V to ±15V
±5V to ±15V
±5V to ±15V
±5V to ±15V
±15V
±15V
±15V
±15V
±5V
±15V
±5V
±15V
±5V
MIN
100
50
12.5
2.5
96
96
±15V
±15V
±5V
±5V
±15V
±15V
±5V
±5V
±15V
±5V
±15V
100
300
300
200
200
±13
±12.8
±3
±2.8
±15
±15
±25
TYP
30
50
13
3
– 10
5
0.6
240
150
4
13.5
3.5
– 14.3
– 4.3
110
112
± 2.5
112
9000
5000
6000
3000
±13.6
±13.5
±3.6
±3.5
±22
±22
±40
MAX
125
200
±50
±10
±40
– 12.5
– 2.5
± 4.5
UNITS
µV
µV
nA
nA
nA
nV/Hz
pA/Hz
M
k
pF
V
V
V
V
dB
dB
V
dB
V/mV
V/mV
V/mV
V/mV
V
V
V
V
mA
mA
mA
2


Part Number LT1469
Description Dual 90MHz/ 22V/us 16-Bit Accurate Operational Amplifier
Maker Linear Technology
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LT1469 Datasheet PDF






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