Datasheet LSP2916B, LSP2916A Datasheet (AGERE)

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

LSP2916 16-Channel, High-Voltage Driver

Preliminary Data Sheet

July 2001

Pin Information

Table 2. LSP2916 Pin Description

Pin Name Function Pin Total

LP

V

GND Ground 1 Analog ground.

V

HN

I

BIAS

+IN Analog Input 1 Noninverting input for all channels.

–INx Analog Input 16 Inverting input for each channel.

OUTPUTx Analog Output 16 Output.

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings
can cause permanent damage to the device. These are
absolute stress ratings only. Functional operation of the
device is not implied at these or any other conditions in
excess of those given in the operational sections of the
data sheet. Exposure to absolute maximum ratings for
extended periods can adversely affect device reliability.

(continued)

Description

Counts

Power Supply 1 5 V analog power supply.

VHN < |–298| V 1 High-voltage negative supply.

Current Limit Control 1 Sets current limit with external resistor to GND.

Application Notes

LSP2916 is recommended for MEMS optical systems.
It features programmable current limit while the output
can swing up to –298 V. With all the feedback resistors
inside the chip, there is no more need for these resis­tors in the external circuit.

Safety Handling for the High-Voltage Device

Table 3. Absolute Maximum Ratings

Parameter Min Typ Max Unit

Power Supply:

V

HN

LP

V

Operating Temperature –5 25 85 °C

Storage Temperature –40 — 85 °C

Ambient Temperature –5 25 70 °C

0

4.5

–160.0

5.0

–298.0

5.5

V
V

Handling Precautions

Although protection circuitry has been designed for this
device, proper precautions should be taken to avoid
exposure to electrostatic discharge (ESD) during
handling and mounting. Agere Systems Inc. employs a
human-body model (HMB) and charged-device model
(CDM) for ESD-susceptibility testing and protection
design evaluation. ESD voltage thresholds are
dependent on the circuit parameters used in the
defined model. No industry-wide standard has been
adopted for CDM. However, a standard HBM
(resistance = 1500 Ω , capacitance = 100 pF) is widely
used, and therefore, can be used for comparison
purposes. The HBM ESD threshold (>500 V) presented
here was obtained by using these circuit parameters.

LSP2916 is designed to operate up to 298 V negative
power supply, so special care should be paid to safety
issues.

Bypass Capacitors/Protection Series Resistor for
the Power Supplies

To minimize noise coupling to the output, a 0.1
bypass capacitor should be placed as close as
possible to all power supply pins. Additionally, to avoid
the possible degradation of the LSP2916 when V
hot switched, a 10 Ω series resistor between the V
pin and the VHN

power supply is required.

µ

F

HN

is

HN

4 Agere Systems Inc.

Preliminary Data Sheet
July 2001

Electrical Characteristics

Table 4. Electrical Characteristics

LSP2916 16-Channel, High-Voltage Driver

A

= 25 °C, VLP = 5 V, VHN = –200 V, noninverting input +IN = 0 V, I

T

BIAS

resistor = 143 kΩ.

Parameters Symbol Condition Min Typ Max Unit

2916A 2916B 2916A 2916B 2916A 2916B

Input Characteristics

–IN

Input Resistance R

Input Offset Voltage* —

Input Offset Voltage

—

Drift

Input Noise —

= 5 V

–IN

= 0 V

–

IN = 0 V

0 °C—70 °C

f

≤

10 kHz

125 200 500 kΩ

–20 0 20 mV

—4—µV/°C

—10.3—µVrms
C = 150 pF
R = 10 MΩ

Input Bias Current

Input Bias Current

Power Supply

Rejection Ratio

Input Range

x) –

I(+IN

)–

PSRR

V

HN

V

LP

–

IN

IN = 5 V

IN = 5 V

No load
No load

12.5 25 50 µA

–40 0 40 nA

—

—

85
52

—
—

— –0.5 — 10 V

dB
dB

I(–IN

Gain

–IN

Voltage Gain G

Gain Temperature

G

TC

= 3 mV

——

30.4 63.0 32.0 66.0 33.6 69.0 V/V
–1.25 x 10

–5

——

Coefficient

Channel-to-Channel

—— —2—%

Gain Match

Amplifier Output Characteristics

Output Resistance — — 10 90 125 kΩ

Amplifier Current Limit — Rib = 143 kΩ 85 100 115 µA

Output Voltage — —

V

+ 2.5 V

HN

†

—

V

LPD

–

3 V

‡

Dynamics Characteristics

–3 dB Bandwidth — — — 6.5 — kHz

Slew Rate

Rising
Falling

Settling Time

Rising
Falling

Crosstalk

§

Adjacent Channel
Nonadjacent Channel

* Input offset voltage = (VOFFSET voltage/gain), the test condition is for the offset output voltage.

† –IN = 10 V.
‡–IN

= –0.25 V.

§ Using an OP27 as buffer, test measurement was taken at the output of OP27.

— Input pulse = 0 V—4 V

C = 150 pF and
R = 10 MΩ

— Input pulse = 0 V—4 V

C = 150 pF and
R = 10 MΩ

C = 150 pF
—
—

f = 1 kHz

R = 16 MΩ

—
—

—
—

—
—

0.62

0.54

277
309

–71
–80

—
—

—
—

—
—

V/µs
V/µs

µs
µs

dB
dB

V

Agere Systems Inc. 5

LSP2916 16-Channel, High-Voltage Driver

Preliminary Data Sheet

July 2001

Electrical Characteristics

(continued)

Table 4. Electrical Characteristics (continued)

T

A

= 25 °C, VLP = 5 V, VHN = –200 V, noninverting input +IN = 0 V, I

BIAS

resistor = 143 kΩ.

Parameters Symbol Condition Min Typ Max Unit

2916A 2916B 2916A 2916B 2916A 2916B

Power Supply Currents at Room Temperature

)V

I(V

I(V

HN

LPA

)

Quiescent Current

Power Consumption P

* Input offset voltage = (V
† –IN = 10 V.
‡ –IN = –0.25 V.

§ Using an OP27 as buffer, test measurement was taken at the output of OP27.

OFFSET

voltage/gain), the test condition is for the offset output voltage.

V

HN

V

HN

V

LP

LP

= –160.0 V

= 5.0 V

= –160.0 V

= 5.0 V

1.30 1.55 1.80 mA

1.36 1.60 1.85 mA

—256—mW

6 Agere Systems Inc.

Preliminary Data Sheet
July 2001

LSP2916 16-Channel, High-Voltage Driver

Electrical Characteristics

1.65

1.6

(mA)

HN

1.55

1.5

1.45

CURRENT FROM V

1.4

-20

0102030

-10

40 50 60 70 100 11080 90

TEMPERATURE (ºC)

(continued)

Note: Test conditions for the LSP2916A are: VHN = –200 V,

LP

= 5 V, Rib = 144 kΩ.

V

Figure 4. Current from VHN vs. Temperature

1.65

1.6

(mA)

LP

1.55

1.5

1.45

CURRENT FROM V

1.4

1.35

-20

0102030

-10

40 50 60 70 100 11080 90

TEMPERATURE (ºC)

Note: Test conditions for the LSP2916A are: VHN = –200 V,

V

LP = 5 V, Rib = 144 kΩ.

Figure 5. Current from VLP vs. Temperature

2286(F)

2287(F)

350

300

250

200

150

Rib (kΩ)

100

50

0

0.250.20.150.10.05

0.3

CURRENT (mA)

Figure 6. Resistor (Rib) vs. Output Current Limit

31.7

31.65

31.6

31.55

NORMALIZED GAIN

31.5

31.45

1.009

3.008 4.006 5.002 6.001

2

INPUT (V)

Note: Test conditions for the LSP2916A are: VHN = –200 V,

LP

= 5 V, Rib = 144 kΩ.

V

Figure 7. Gain vs. Output Voltage (VHN = –160 V)

1.2

1

1686(F)

2285(F)

Output Current Range at Different
Resistance on Pin I

Figure 6 shows the output current range when different
resistances are applied to pin IBIAS

Test condition: maximum current limit is 300 µA.

Table 5. Output Current Range at Different
Resistances on I

Resistance on I

143 kΩ 85 100 115 µA

BIAS

BIAS

BIAS

.

Min Typ Max Unit

0.8

0.6

0.4

NORMALIZED OUTPUT

0.2

0

100

500 1000 2000 3000

200

4000 5000 5500 6000 80006500 7000

FREQUENCY (Hz)

Note: Test conditions for the LSP2916A are: VHN = –200 V,

LP = 5 V, Rib = 144 kΩ.

V

Figure 8. –3 dB Plot

2288(F)

70.3 kΩ 170 200 230 µA

45.2 kΩ 255 300 345 µA

Agere Systems Inc. 7

LSP2916 16-Channel, High-Voltage Driver

LSP2916AHA/LSP2916BHA Package Diagram

17.20 ± 0.25

14.00 ± 0.20

Preliminary Data Sheet

July 2001

PIN #1 IDENTIFIER ZONE

4964

1

16

3217

12.00 REF

48

14.00

± 0.20

33

17.20

± 0.25

GAGE PLANE

SEATING PLANE

1.60 REF

0.30/0.45

0.25

DETAIL A

DETAIL B

0.73/1.03

0.30/0.40

0.20

M

DETAIL A DETAIL B

0.80 BSC

0.25 MAX

1.80/2.20

2.45 MAX

SEATING PLANE

0.10

5-5202.a(F)

8 Agere Systems Inc.

Preliminary Data Sheet
July 2001

LSP2916 16-Channel, High-Voltage Driver

Ordering Information

Version Device Code Temperature Range Package

LSP2916A LSP2916AHA 0 °C—70 °C 64 MQFP

LSP2916B LSP2916BHA 0 °C—70 °C 64 MQFP

Agere Systems Inc. 9

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Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.

Copyright © 2001 Agere Systems Inc.
All Rights Reserved
Printed in U.S.A.

July 2001
DS01-023ASP