LTC2664 datasheet(5/28 Pages) LINER

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LTC2664

2664fa

For more information www.linear.com/LTC2664

electrical characteristics The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. VCC = 5V, IOVCC = 5V, V+ = 15V, V– = –15V, VREF = 2.5V, VOUT unloaded

unless otherwise specified.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Reference Load Regulation

VCC = 5V ± 10%, IOUT = 100µA Sourcing

140

mV/mA

Reference Output Voltage Noise

Density

CREFCOMP = CREF = 0.1µF, at f = 10kHz

nV/√Hz

Reference Input Range

External Reference Mode (Note 8)

0.5

VCC – 1.75

Reference Input Current

External Reference

0.001

µA

Reference Input Capacitance (Note 9)

Power Supply

VCC

Analog Supply Voltage

4.5

5.5

V+

Analog Positive Supply

4.5

15.75

V–

Analog Negative Supply

V– Not Tied to GND

V– Tied to GND

–15.75

–4.5

IOVCC

Digital I/O Supply Voltage

1.71

VCC + 0.3

I(VCC)

Supply Current VCC

VCC = 5V, Unipolar Ranges (Note 10)

VCC = 5V, Bipolar Ranges (Note 10)

1.6

2.7

2.1

3.2

Supply Current V+/V–

Unipolar Ranges (Code = 0)

Bipolar Ranges (Note 11)

1.3

2.3

1.8

2.7

I(IOVCC) Supply Current IOVCC (Note 12)

IOVCC = 5V

0.02

µA

VCC Shutdown Supply Current

IOVCC = VCC = 5V, V+/V– = ±15V

µA

V+ Shutdown Supply Current

IOVCC = VCC = 5V, V+/V– = ±15V

µA

V– Shutdown Supply Current

IOVCC = VCC = 5V, V+/V– = ±15V

–60

–27

µA

Analog Mux

Analog Mux DC Output Impedance

2.2

kΩ

Analog Mux Leakage Current

Analog Mux Disabled (High Impedance)

0.02

µA

Analog Mux Output Voltage Range

Analog Mux Selected to DAC Channel

V–

V+ – 1.4

Analog Mux Continuous Current

(Note 9)

±1

Temperature Monitor

Initial Voltage

T = 25°C

1.4

Temperature Coefficient

–3.7

mV/°C

AC Performance

tSET

Settling Time (Notes 9, 13)

0V to 5V or ±2.5V Span, ±5V Step

±0.024% (±1LSB at 12 Bits)

±0.0015% (±1LSB at 16 Bits)

4.5

µs

Settling Time (Notes 9, 13)

0V to 10V or ±5V Span, ±10V Step

±0.024% (±1LSB at 12 Bits)

±0.0015% (±1LSB at 16 Bits)

9.5

µs

Settling Time (Notes 9, 13)

±10V Span, ±20V Step

±0.024% (±1LSB at 12 Bits)

±0.0015% (±1LSB at 16 Bits)

15.5

µs

Voltage Output Slew Rate

V/µs

Capacitive Load Driving

No Oscillation

1000

Glitch Impulse (Note 14)

At Mid-Scale Transition, 0V to 5V Range

nV • s

DAC-to-DAC Crosstalk (Note 15)

Due to Full-Scale Output Change

3.5

nV • s

Output Voltage Noise

0V to 5V Output Span,

Internal Reference

Density at f = 1kHz

Density at f = 10kHz

0.1Hz to 10Hz, Internal Reference

0.1Hz to 200kHz, Internal Reference

1.7

nV/√Hz

µVRMS

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