Analog Function Switch

Ordering number : ENA4817A
LC78211, 78212, 78213
CMOS LSI
Analog Function Switch
http://onsemi.com
Applications
Function switching under serial data control in amplifiers, receivers, and other electronic equipment.
Features
 Two sets of eight (or in the LC78213, seven) built-in circuits with three switching configurations available based on
differing internal connections.
 Control according to serial data sent from a microprocessor, and easy connection to 5 V microprocessors.
 Two identical products can be connected to a shared bus due to the provision of a select pin (S).
 A reset pin that turns off all analog switches.
 A ±20 V withstand voltage rating allows these products to provide a wide dynamic range.
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter
Maximum supply voltage
Symbol
Conditions
Ratings
Unit
VDD max
VDD
–0.3 to +20
VEE max
VEE
–20 to +0.3
V
V
Maximum input voltage
VI 1
DI, CL, CE, S, RES
–0.3 to +20
V
VI2
L1 to L8, R1 to R8, LCOM1 to LCOM4, RCOM1 to RCOM4
VEE – 0.3 to VDD + 0.3
V
Analog switch potential
VON
With the switch on
0.5
V
Allowable power dissipation
Pd max
Ta ≤ 75°C
100
mW
Operating temperature range
Topr
–30 to +75
C
Storage temperature range
Tstg
–40 to +125
C
difference when on
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
Package Dimensions
unit : mm
PDIP30 / DIP30SD (400mil)
CASE 646AZ
DIP30SD (400mil)
ORDERING INFORMATION
See detailed ordering and shipping information on page 6 of this data sheet.
Semiconductor Components Industries, LLC, 2013
December, 2013
73096HA (OT)/72994 TH (OT) No.A4817-1/6
LC78211, 78212, 78213
Pin Assignments
Top view
Allowable Operating Ranges at Ta = 25°C, VSS = 0 V, | VDD | ≥ | VEE |
Parameter
Maximum supply voltage
Symbol
Conditions
min
typ
max
Unit
VDD
VDD – VEE ≥ 12 V: VDD
6.0
18.5
V
VEE
VDD – VEE ≥ 12 V: VEE
–18.5
0
V
VIH1
DI, CL, CE
V
VIH2
S, RES
VIL1
4.0
18.5
0.7 VDD
VDD
V
DI, CL, CE
0
0.7
V
VIL2
S, RES
0
0.3 VDD
V
VIN
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
VEE
VDD
V
Low level clock pulse width
tøL
CL
0.5
µs
High level clock pulse width
tøH
CL
0.5
µs
tset up
CL, DI
0.5
µs
t1*
CL, CE
0.5
µs
Input high level voltage
Input low level voltage
Analog switch input
voltage range
Setup time
Minimum reset pulse width
Hysteresis
t2*
CL, CE
0.5
µs
t3*
CL, CE
0.5
µs
VDD ≥ 6 V: RES
1.0
µs
CL, CE, DI
0.3
V
twRES
VH
Note: * CE, CL and DI waveforms
No. 4817-2/6
LC78211, 78212, 78213
Electrical Characteristics at Ta = 25°C, VSS = 0 V
Parameter
Symbol
Conditions
min
typ
max
Unit
RON1
I = 1 mA, VDD – VEE = 12 V:
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
150
Ω
RON2
I = 1 mA, VDD – VEE = 37 V:
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
70
Ω
THD1
VIN = 1 Vrms, f = 1 kHz, VDD – VEE = 37 V:
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
THD2
VIN = 0.1 Vrms, f = 1 kHz, VDD – VEE = 37 V:
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
Analog switch on resistance
Total harmonic distortion
0.0015
0.01
%
0.01
0.05
%
Feedthrough
FTH
VIN = 0 dBV, f = 10 kHz, VDD – VEE = 37 V:
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
55
dB
Crosstalk
CT
VIN = 0 dBV, f = 10 kHz, VDD – VEE = 37 V:
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
75
dB
Input high level current
IIH
VI = 18.5 V: DI, CL, CE, S, RES
Input low level current
IIL
VI = 0 V: DI, CL, CE, S, RES
–10
–10
Analog switch leakage current
(off state)
IOFF
VI = VEE to VEE + 37 V:
L1 to L8, R1 to R8, LCOM1 to LCOM4,
RCOM1 to RCOM4
Current drain
IDD
VDD
+10
µA
µA
+10
µA
1.0
mA
Equivalent Circuit Block Diagrams
Continued on next page.
No. 4817-3/6
LC78211, 78212, 78213
Continued from preceding page.
No. 4817-4/6
LC78211, 78212, 78213
Pin Functions
Pin
I/O
Internal equivalent circuit
VDD, VSS, VEE
Pin function
Power supply
L1 to L8, R1 to R8,
LCOM1 to LCOM4,
RCOM1 to RCOM4
See the block diagram.
CL, DI, CE
Analog switch input and output
Serial data input (Schmitt buffer)
CL..............Clock input
DI...............Data input
CE .............Chip enable
I
Selection of one of two chips
The address is set to the values shown in the table below according to
the level input to the S pin.
Product
S
I
LC78211
LC78212
LC78213
RES
Address
S pin
level
A0
A1
A2
L
0
1
0
1
H
1
1
0
1
A3
L
0
0
1
1
H
1
0
1
1
L
0
1
1
1
H
1
1
1
1
Reset input
The states of the analog switches are undefined when power is first
applied. Setting this pin low will force all switches the off state.
I
Operation
1. Data Input Procedure
The LC78211, LC78212 and LC78213 are controlled by inputting specified data to the CL, DI and CE pins. The
input data consists of 12 bits, of which four bits are address and eight bits are data.
Bits correspond to the L1 to L8 and R1 to R8 analog switches, and a value of one turns the corresponding switch on,
and a value of zero turns it off.
0.........Off
1.........On
The address is used when the chip is connected to a shared bus. The data (address) that must be transmitted depends
on the S pin and the particular product as shown in the table below.
Product
LC78211
LC78212
LC78213
Address
S pin
level
A0
A1
A2
L
0
1
0
1
H
1
1
0
1
A3
L
0
0
1
1
H
1
0
1
1
L
0
1
1
1
H
1
1
1
1
Note: The bit for switch eight in the LC78213 is a “don’t care” bit, that is it can be either 0 or 1 without affecting
chip function. This is because the LC78213 has two sets of seven (not eight) circuits.
No. 4817-5/6
LC78211, 78212, 78213
2. DI, CL and CE Timing
Data is read in on the rising edge of CL and latched on the falling edge of CE.
3. Notes on the Reset Pin
The states of the analog switches are undefined when power is first applied. However, it is possible to use the reset
pin to force all switches to the off state by connecting an RC circuit to this pin.
4. Using a CCB Bus with Multiple ICs
The LC78211, LC78212 and LC78213 retain their prior state until they receive data with a matching address.
5. Replacing Earlier Models
Caution is required when replacing an LC7821N, LC7823N and LC7823N with an LC78211, LC78212 and
LC78213, since the S pin threshold levels differ.
6. Handling of Unused Input Pins
We recommend connecting any unused switch pin to VSS through a resistor of up to a few 100 k
from static electricity.
to prevent damage
ORDERING INFORMATION
Device
LC78211-E
Package
DIP30SD(400mil)
(Pb-Free / Halogen Free)
Shipping (Qty / Packing)
LC78212-E
DIP30SD(400mil)
(Pb-Free / Halogen Free)
20 / Fan-Fold
LC78213-E
DIP30SD(400mil)
(Pb-Free / Halogen Free)
20 / Fan-Fold
20 / Fan-Fold
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PS No.A4817-6/6
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