LT1469

1

1469fa

TYPICAL APPLICATION

FEATURES

APPLICATIONS

DESCRIPTION

Dual 90MHz, 22V/µs

16-Bit Accurate Operational Amplifier

amplifier with 16-bit accuracy and 900ns settling to 150μV

for 10V steps. This unique blend of precision and AC

performance makes the LT1469 the optimum choice for

high accuracy applications such as DAC current-to-voltage

conversion and ADC buffers. The initial accuracy and drift

characteristics of the input offset voltage and inverting input

bias current are tailored for inverting applications.

The 90MHz gain bandwidth ensures high open-loop gain

at frequency for reducing distortion. In noninverting ap-

plications 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 available in a space saving 4mm × 4mm

leadless package, as well as in small outline and DIP pack-

ages. A single version, the LT1468, is also available.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

Bipolar Multiplying Mode (LTC1597)

Signal-to-(Noise + Distortion)

15pF

2.4μs SETTLING TIME

TO 1LSB ON 20V STEP

LTC1597

16 BITS

DAC INPUTS

1469 TA01

15pF

–

+

1/2 LT1469

1/2 LT1469

12k

12k

12k

12k

–15V

15V

FREQUENCY (Hz)

90

70

50

40

10

1k

10k

100k

1469 TA01a

110

100

60

80

100

DAC INPUT CODE = ALL ZEROS

500kHz FILTER

80kHz FILTER

30kHz

FILTER