ADS8284
SLAS628–MARCH 2009................................................................................................................................................................................................... www.ti.com
SPECIFICATIONS (continued)
TA = –40°C to 85°C, VCC = 5 V, VEE = –5 V, +VA = 5 V, +VBD = 5 V or 3.3 V, Vref = 4 V, fSAMPLE = 1 MSPS (unless
otherwise noted)
PARAMETER
+VBD
TEST CONDITIONS
MIN
2.7
TYP
3.3
5
MAX
5.25
5.25
7.5
UNIT
V
V
V
V
+VA
4.75
4.75
–7.5
Power supply voltage
VCC
5
VEE
–5
–3
ADC driver positive supply (VCC) current (for OP1 and
OP2 together)
VCC = +5, VEE = -5V, CH0 - CH3 p and m inputs
shorted to each other and connected to 2V
11.65
9.6
mA
mA
ADC driver negative supply ( VEE) current (for OP1 and VCC= +5V, CH0 - CH3 p and m inputs shorted to
OP1 together)
each other and connected to 2V
+VA supply current, 1-MHz sample rate
45
8
50
85
mA
mA
µA
VCC= +5, PD-RBUF = 0, Quiescent current
VCC = 5, PD-RBUF = 1(7)
Reference buffer (BUF-REF) supply current (VCC to
GND)
10
TEMPERATURE RANGE
Operating free-air
–40
°C
(7) PD-RBUF = 1 powers down the reference buffer (BUF-REF), note that it does not 3-state the BUF-REF output.
6
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