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| DAC8734_091 Datasheet, PDF (16/41 Pages) Texas Instruments – Quad, 16-Bit, High-Accuracy, ±16V Output, Serial Input DIGITAL-TO-ANALOG CONVERTER | |||
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DAC8734
SBAS465A â MAY 2009 â REVISED SEPTEMBER 2009 .................................................................................................................................................. www.ti.com
TYPICAL CHARACTERISTICS (continued)
TOTAL SUPPLY CURRENT
vs DIGITAL INPUT CODE
14
|AISS|
13
12
TA = +25°C
Gain = 4
VREF = 5V
11 AVDD = +15V
AVSS = -15V
10
Code Change for One Channel
All Other Channel Outputs = 0V
9
|AIDD|
8
0 8192 16384 24576 32768 40960 49152 57344 65535
Digital Input Code
Figure 27.
MAJOR CARRY GLITCH
2mV/div
BTC Code Change: 0000h to FFFFh
VOUT
5V/div
LDAC
Time (0.5ms/div)
Figure 29.
TA = +25°C
Gain = 4
VREF = 5V
DVDD = 5V
AVDD = +15V
AVSS = -15V
SETTLING TIME
(+10V to â10V Transition)
DELTA OUTPUT VOLTAGE
vs SOURCE/SINK CURRENT
(Bipolar Operation)
6
4 BTC
7FFFh
2
+1 LSB
0
-1 LSB
-2
BTC 8000h
BTC C000h
BTC 4000h
TA = +25°C
Gain = 4
VREF = 5V
AVDD = +12V
AVSS = -12V
-4
-6
-12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12
ILOAD (mA)
Figure 28.
MAJOR CARRY GLITCH
BTC Code Change: FFFFh to 0000h
2mV/div
VOUT
TA = +25°C
Gain = 4
VREF = 5V
DVDD = 5V
AVDD = +15V
AVSS = -15V
5V/div
LDAC
Time (0.5ms/div)
Figure 30.
SETTLING TIME
(â10V to +10V Transition)
5V/div
5V/div LDAC
Small-Signal Error
300mV/div
Large-Signal Output
TA = +25°C
Gain = 4
VREF = 5V
AVDD = +15V
AVSS = -15V
10kW || 200pF
Time (5ms/div)
Figure 31.
5V/div
LDAC
5V/div
Large-Signal Output
Small-Signal Error
TA = +25°C
Gain = 4
VREF = 5V
AVDD = +15V
AVSS = -15V
10kW || 200pF
300mV/div
Time (5ms/div)
Figure 32.
16
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