AGERE LSP2916B, LSP2916A Datasheet

LSP2916 16-Channel, High-Voltage Driver

Preliminary Data Sheet

July 2001

Features

■

16 amplifier channels available in one package.

■

Outputs from 0 V to –298 V per channel.

■

Programmable output current limit (50 µA to
300 µA).

■

Fixed gain set by internal resistors. (The fixed gain
for version A is –32 V/V, and –66 V/V for version
B.)

■

Minimal external components.

Applications

■

Optical crosspoint switches.

■

Optical microelectromechanical systems (MEMS)
components.

Description

This LSP2916 16-channel, high-voltage (HV) driver
is targeted for microoptomechanical systems. Each
device contains 16 high-voltage amplifiers with an
output voltage range of 0 V to –298 V. Internal gain­setting resistors provide a fixed gain of –32 V/V,
thereby minimizing external component count. Each
amplifier can output up to 300 µA, ideal for deflection
and control of optical MEMS mirrors. Output current
limit is programmed by an external resistor.
Additionally, careful attention was paid to minimizing
offset drift and gain variation over temperature. The
internal block diagram is shown in Figure 1. There
are two versions, version A (LSP2916A) and version
B (LSP2916B). For version A, R
RIN

= 250 kΩ; and for version B, RF = 8.25 MΩ and

RIN

= 125 kΩ. So LSP2916A has the fixed gain of
–32 V/V and LSP2916B has the fixed gain of
–66 V/V.

F

= 8 MΩ and

The LSP2916 requires one negative high-voltage
power supply (V
power supply (V

HN

) and one positive 5 V analog

LP

). Corresponding to the 16
channels, there are 16 negative input voltage pins,
–INx (x = 1, 2, . . . , 16), and the corresponding 16
output pins, OUTPUTx

(x = 1, 2, . . . , 16).

+IN is the noninverting input for all 16 amplifiers,
which means all the amplifiers share the same
noninverting input. +IN should be connected to GND
for typical applications. I

BIAS

pin will set the current
limit for the amplifiers by connecting it to an external
resistor. The LSP2916 is available in a leaded
surface-mount 64-pin MQFP package.

Block Diagram

LSP2916

R

–IN1

–IN16

+IN

IN

R

IN

Figure 1. LSP2916 Internal Functional Block

Diagram

R

F

–

+

R

F

–

+

OUTPUT 1

OUTPUT 16

1682(F)

LSP2916 16-Channel, High-Voltage Driver

Preliminary Data Sheet

July 2001

Description

(continued)

Typical Application Circuit

DAC

–IN1

LSP2916

RIN

0.1 µF

10 Ω

HN

V

0.1 µF

LP

V

F

R

–

+

F

R

OUTPUT 1

MEMS

MATRIX

DAC

–IN16

+IN

IN

R

GND

–

+

Rib = 143 kΩ

Figure 2. Typical Application Circuit

OUTPUT 16

1683(F)

22 Agere Systems Inc.

Preliminary Data Sheet
July 2001

Pin Information

NC

–IN9

–IN10

–IN11

–IN12

NC

NC

NC

NC

NC

NC

–IN5

–IN6

–IN7

–IN8

NC

LSP2916 16-Channel, High-Voltage Driver

NC

OUTPUT14

NC

OUTPUT13

NC

OUTPUT12

NC

OUTPUT11

NC

OUTPUT10

NC

OUTPUT9

53

54

55

56

57

58

59

60

61

62

63

64

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

171819202122232425262728293031

OUTPUT16

NC

NC

OUTPUT15

49

50

51

52

48

NC

47

–IN16

46

–IN15

45

–IN14

44

–IN13

43

+IN

42

NC

41

NC

40

BIAS

I

39

VLP

38

GND

37

–IN4

36

–IN3

35

–IN2

34

–IN1

33

NC

32

HN

V

OUTPUT8NCOUTPUT7NCOUTPUT6NCOUTPUT5NCOUTPUT4NCOUTPUT3NCOUTPUT2NCOUTPUT1

Figure 3. External Connections

Table 1. LSP2916 Pin Order

Pin

Number

Symbol Pin

Number

Symbol Pin

Number

Symbol Pin

Number

Symbol

1 NC 17 OUTPUT8 33 NC 49 OUTPUT16
2–IN918 NC 34–IN150 NC
3 –IN10 19 OUTPUT7 35 –IN2 51 NC
4 –IN11 20 NC 36 –IN3 52 OUTPUT15
5 –IN12 21 OUTPUT6 37 –IN4 53 NC
6 NC 22 NC 38 GND 54 OUTPUT14
7NC23OUTPUT539V
8NC24NC40I

LP

BIAS

55 NC
56 OUTPUT13

9 NC 25 OUTPUT4 41 NC 57 NC
10 NC 26 NC 42 NC 58 OUTPUT12
11 NC 27 OUTPUT3 43 +IN 59 NC
12 –IN5 28 NC 44 –IN13 60 OUTPUT11
13 –IN6 29 OUTPUT2 45 –IN14 61 NC
14 –IN7 30 NC 46 –IN15 62 OUTPUT10
15 –IN8 31 OUTPUT1 47 –IN16 63 NC
16 NC 32 V

HN

48 NC 64 OUTPUT9

1541.a(F)

Agere Systems Inc. 3