Datasheet

DAC3484
www.ti.com SLAS749C –MARCH 2011–REVISED AUGUST 2012
ELECTRICAL CHARACTERISTICS – DC SPECIFICATIONS
(1)
over recommended operating free-air temperature range, nominal supplies, IOUT
FS
= 20mA (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
Resolution 16 Bits
DC ACCURACY
DNL Differential nonlinearity ±2 LSB
1 LSB = IOUT
FS
/2
16
INL Integral nonlinearity ±4 LSB
ANALOG OUTPUT
Coarse gain linearity ±0.04 LSB
Offset error Mid code offset ±0.001 %FSR
With external reference ±2 %FSR
Gain error
With internal reference ±2 %FSR
Gain mismatch With internal reference ±2 %FSR
Full scale output current 10 20 30 mA
Output compliance range –0.5 0.6 V
Output resistance 300 kΩ
Output capacitance 5 pF
REFERENCE OUTPUT
V
REF
Reference output voltage 1.2 V
Reference output current
(2)
100 nA
REFERENCE INPUT
V
EXTIO
Input voltage range 0.6 1.2 1.25 V
External Reference Mode
Input resistance 1 MΩ
Small signal bandwidth 472 kHz
Input capacitance 100 pF
TEMPERATURE COEFFICIENTS
Offset drift ±1 ppm/°C
with external reference ±15 ppm/°C
Gain drift
with internal reference ±30 ppm/°C
Reference voltage drift ±8 ppm/°C
(1) Measured differentially across IOUTP/N with 25 Ω each to GND.
(2) Use an external buffer amplifier with high impedance input to drive any external load.
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