DAC8728_14 Datasheet, PDF (21/56 Pages) Texas Instruments – Octal, 16-Bit, Low-Power, High-Voltage Output, Parallel Input DIGITAL-TO-ANALOG CONVERTER

DAC8728
www.ti.com
SBAS466A – JUNE 2009 – REVISED NOVEMBER 2009
TYPICAL CHARACTERISTICS: Dual-Supply (continued)
At T_A = +25°C, V_REF = +5V, AV_DD = +16.5V, AV_SS = –16.5V, and gain = 6, unless otherwise noted.
QUIESCENT CURRENTS
vs TEMPERATURE
QUIESCENT CURRENTS
vs DIGITAL INPUT CODE
8
8
Code = 8000h
6
6
I_AVDD
4
4
I_AVDD
2
2
0
-2
-4
-6
-8
-55 -35 -15
I_AVSS
5 25 45 65
Temperature (°C)
85 105 125
0
-2
-4
-6
-8
0
I_AVSS
8192 16384 24576 32768 40960 49152 57344 65536
Digital Input Code
Figure 34.
Figure 35.
8
6
4
2
0
-2
-4
-6
-8
0
QUIESCENT CURRENTS
vs REFERENCE VOLTAGE
I_AVDD
I_AVSS
AV_DD = +18V
AV_SS = -18V
Code = 8000h
1
2
3
4
5
6
V_REF (V)
Figure 36.
DELTA OUTPUT VOLTAGE
vs SOURCE/SINK CURRENTS
6
0000h
4
2
0
FFFFh
-2
-4
-6
-12 -10 -8 -6 -4 -2 0 2
I_OUT (mA)
Figure 37.
8000h
C000h
4000h
4 6 8 10 12
SETTLING TIME
–15V TO +15V TRANSITION
Large-Signal Output
5V/div
SETTLING TIME
+15V TO –15V TRANSITION
Code Change: FFFFh to 0000h
Output Loaded with 10kW and
240pF to AGND
5V/div
Small-Signal Error
1 LSB/div
LDAC
Code change: 0000h to FFFFh
Output loaded with 10kW and
240pF to AGND
Time (10ms/div)
Figure 38.
5V/div
Small-Signal Error
1 LSB/div
LDAC
Large-Signal Output
Time (10ms/div)
Figure 39.
5V/div
Copyright © 2009, Texas Instruments Incorporated
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