LINEAR 2PB_2757fd ±1LSB 18-Bit DAC Specifications & User Guide

±1LSB 18-Bit DAC

1.0 ±10V Range 0.8 0.6 0.4

Parallel

VOUT ±10V

LTC2757 –0.2

2.1µs Settling

Guaranteed ±1LSB INL & DNL Over Temperature

The LTC®2757 is the first monolithic 18-bit DAC to offer precision DC specifications of ±1LSB INL (max) and ±1LSB DNL (max). The LTC2757 provides better than ±4ppm accuracy over four bipolar and two unipolar output ranges for precision adjustment in open loop applications. Excellent temperature drift and power supply rejection simplify system design.

IN (L SB

Features Soft Span™ Selectable

n Program or Pin-Strap Six Output Ranges: Output Spans

0V to 5V, 0V to 10V, –2.5V to 7.5V, ±2.5V, ±5V, ±10V 10V 18-Bit Settling Time: 2.1μs Glitch Impulse: 1.4n V•s (3V), 3n V•s (5V)

n Output Noise: 14n V/√Hz with LT®1468 Output Amp 5V

n 1MHz Reference Multiplying Bandwidth

n Temperature Drift:

n ±0.2 LSB INL Drift from –40°C to 85°C n ±0.25 ppm/°C Gain Drift n ±0.15 ppm/°C Bipolar Zero Drift

n Power Supply Rejection: ±0.8 LSB/V

n Voltage-Controlled Offset and Gain Trims

n Parallel Interface with Readback of All Registers –10V

n Reset to 0V Regardless of Output Range

n 2.7V to 5.5V Single Supply Operation

n Maximum Supply Current: 1µA

n 48-Pin 7mm × 7mm LQFP Package

Applications n ATE n Precision Instrumentation

n Galvanometer Scanners

n DAQ Modules

n Calibration Equipment

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