REF10 Datasheet, PDF (7/7 Pages) Burr-Brown (TI) – Precision VOLTAGE REFERENCE

35V to 55V
2
REF10
6 ^+30V
4
2
6
REF10
+20V
4
2
+V_CC
2
6
REF10
INA105
4
3
+10V
2
5
6
+5
1 E_O = E₁/2, ±0.01%
FIGURE 10. +5V and +10V Reference.
6
REF10
+10V
4
NOTES: (1) REF10s can be stacked to obtain voltages in multiples of 10V.
(2) The supply voltage should be between 10n +5 and 10n +25 where n is
the number of REF10s. (3) Output current of each REF10 must not exceed
its rated output current of ±10mA. This includes the current delivered to the
lower REF10.
FIGURE 8. Stacked References.
2
6
REF10
+V_CC = 24V
820Ω
+10V
600Ω
600Ω
4
∆V
600Ω
600Ω
2
6
REF10
+5V Out
At 10V, the 600Ω bridge requires 16.7mA. An 820Ω resistor connected
directly from the bridge to the positive supply provides the bulk of the bridge
current. The REF10 need only supply an error current to keep the bridge at
10V. Since the REF10 can sink or source up to 10mA, the circuit shown can
tolerate supply variations of up to 24V, ±8V, or bridge resistance drift from
400Ω to 1400Ω.
2
INA105
FIGURE 11. +10V Reference with Output Current Boost
Using a Resistor to Drive a 600Ω Bridge.
5
4
–5V Out
6
1
3
FIGURE 9. ±5V Reference.
7
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REF10