ES51960
3 3/4 Auto DMM
Pin Description
Pin No. Symbol
Description
1
2
3
4
5
6
7
8
9
V+
Positive supply voltage, output of on-chip DC-DC converter.
Positive supply voltage, output of on-chip DC-DC converter.
High speed positive connection for reference capacitor.
High speed negative connection for reference capacitor.
High speed integrator output. Connected to integration capacitor.
Integration resistor connection for high speed buffer output.
High speed auto-zero capacitor connection
V+
CH+
CH-
CIH
BUFH
CAZH
CL+
CL-
High resolution positive connection for reference capacitor.
High resolution negative connection for reference capacitor.
High resolution integrator output. Connected to integration capacitor.
High resolution auto-zero capacitor connection.
10 CIL
11 CAZL
12 BUFL
13 IVSH
14 IVSL
15 OVX
16 OVH
17 OVSG
18 OR1
Integration resistor connection for high resolution buffer output.
High level current measurement input.
Low level current measurement input
Input high voltage for resistance measurement.
Output connection for resistance measurement.
Sense low voltage for resistance measurement.
Reference resistor connection for 399.9Ωrange.
19 VR5
20 VR4
21 VR3
22 VR2
23 TEST5
24 ACVL
25 ACVH
26 ADI
27 ADO
28 VA+
Voltage measurement ÷ 10000 attenuator (3999V).
Voltage measurement ÷ 1000 attenuator (399.9V).
Voltage measurement ÷ 100 attenuator (39.99V).
Voltage measurement ÷ 10 attenuator (3.999V).
Test pin 5.
Negative output of AC to DC converter.
Positive output of AC to DC converter.
Negative input of internal AC to DC OP AMP.
Output of internal AC to DC OP AMP.
For ADP use. Deintegrating voltage input. The pin voltage should be
more positive than VA- pin.
29 VA-
30 ADP
31 SGND
32 VR1
For ADP use. Deintegrating voltage input.
Adapted input for other application measurement.
Signal ground.
Measurement input .
33 ADODC Optional pin.
34 VR
Reference input voltage connection. Typically -100 mV.
35 VRH
36 ACVR
37 BKLIT
Output of band-gap voltage reference. Typically -1.2 V.
Optional pin. When connected to -3V,ACV without 400mV range.
Back light function. Pulse low to set BKOUT pin output.
3
92年8月4日
CYRUSTEK [ Cyrustek corporation ]
