DAC8734_091 Datasheet, PDF (4/41 Pages) Texas Instruments – Quad, 16-Bit, High-Accuracy, ±16V Output, Serial Input DIGITAL-TO-ANALOG CONVERTER

DAC8734
SBAS465A – MAY 2009 – REVISED SEPTEMBER 2009 .................................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
All specifications at T_A = T_MIN to T_MAX, AV_DD = +11V to +18V, AV_SS = –11V to –18V, V_REF = REF-A = REF-B = +5V,
DV_DD = +5V, IOV_DD = +1.8V to DV_DD, AGND = DGND = REFGND-A = REFGND-B = SGND-x = 0V, and DAC gain = 4, unless
otherwise noted.
PARAMETER
AC PERFORMANCE⁽⁶⁾
Settling time
Slew rate⁽⁷⁾
Recovery time from
power-down mode
Digital-to-analog glitch⁽⁸⁾
Glitch impulse peak amplitude
Channel-to-channel isolation⁽⁹⁾
DAC-to-DAC crosstalk⁽¹⁰⁾
Digital crosstalk⁽¹¹⁾
Digital feedthrough⁽¹²⁾
Output noise
1/f corner frequency
Output noise spectral density
MONITOR PIN (V_MON)⁽⁶⁾
Output impedance
High-impedance leakage
current
Continuous current limit
REFERENCE INPUT
Reference input voltage range
Reference input dc impedance
Reference input capacitance⁽⁶⁾
CONDITIONS
To 0.03% of FS, C_L = 200pF, R_L= 10kΩ, output changes
from –10V to +10V or +10V to –10V
To 1 LSB, C_L = 200pF, R_L = 10kΩ, output changes from
–10V to +10V or +10V to –10V
To 1 LSB, C_L = 200pF, R_L = 10kΩ, code changes 512
LSBs
C_L = 200pF, R_L = 10kΩ
Delay from clearing bit PD-x to when DAC returns to
normal operation
1 LSB code change around midscale
1 LSB code change around midscale
0.1Hz to 10Hz, ±10V output range, gain = 4, midscale code
0.1Hz to 100kHz, ±10V output range, gain = 4, midscale
code
T_A = +25°C, at 10kHz, ±10V output range, gain = 4,
midscale code
T_A = +25°C, at 10kHz, 0V to +10V output range, gain = 2,
midscale code
DAC8734
MIN
TYP
6
8
4
5
50
8
15
–80
2
2
2
1
40
500
60
45
2200
1
10
100
20
MAX
UNIT
µs
µs
µs
V/µs
µs
nV-s
mV
dB
nV-s
nV-s
nV-s
µV_RMS
µV_RMS
Hz
nV/√Hz
nV/√Hz
Ω
100
nA
0.5
mA
8
V
MΩ
pF
(6) Specified by design and characterization.
(7) Slew rate is measured from 10% to 90% of the transition when the output changes from negative full-scale to positive full-scale.
(8) Digital-to-analog glitch is defined as the amount of energy injected into the analog output at the major code transition. It is specified as
the area of the glitch in nV-s. It is measured by toggling the DAC register data between 0000h and FFFFh in twos complement format.
(9) Channel-to-channel isolation refers to the ratio of the signal amplitude at the output of one DAC channel to the amplitude of the
sinusoidal signal on the reference input of another DAC channel. It is expressed in dB and measured at midscale.
(10) DAC-to-DAC crosstalk is the glitch impulse that appears at the output of one DAC as a result of both the full-scale digital code and
subsequent analog output change at another DAC. It is measured with LDAC tied low and expressed in nV-s.
(11) Digital crosstalk is the glitch impulse transferred to the output of one converter as a result of a full-scale code change in the DAC input
register of another converter. It is measured when the DAC output is not updated, and is expressed in nV-s.
(12) Digital feedthrough is the glitch impulse injected to the output of a DAC as a result of a digital code change in the DAC input register of
the same DAC. It is measured with the full-scale digital code change without updating the DAC output, and is expressed in nV-s.
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